Controllers and Probes
Kontrol 40
A simple, single-parameter control instrument characterised by isolated
measurement and suitable for most water-treatment applications
Kontrol 42
A simple control instrument with double-parameter measurement, designed
for less-complex water-treatment applications
Kontrol 65
Single-parameter instrument characterised by isolated measurement and
usable for most water-treatment applications
Kontrol 100
Single-parameter instrument for high-precision applications and greater
measurement accuracy
Kontrol 102
Double-parameter control instrument for ultra-high-precision applications
equipped with RS485 Modbus port
Kontrol 800
Multi-parameter control instrument with isolated measurement for both
simple and complex water-treatment applications
Kontrol 800 Tech
Multi-parametric control instrument with isolated measurement and graphic
display suitable for complex water-treatment applications
pH probes
For high-precision pH measurement
The knowledge of pH, which represents a classic
measure of the acidity or alkalinity of water, is essential
in many applications that involve chemical laboratory
analysis. pH meters are used to control water quality in
situations such as the water supply of cities, swimming
pools, environmental remediation, food and beverage
production processes and many other applications.
Electronic pH meters measure the potential difference
between two electrodes present in the probe immersed
in the solution and display the corresponding value,
converted into pH. The probe has a special glass
membrane, permeable to the hydrogen ion H+ which
allows it to reach the measuring electrodes; the quality
of the glass determines the quality of the probe in terms
of sensitivity, response speed and mechanical resistance.
Probes & Sensors
SPH1-WP-SJ
Single-junction polycarbonate-body pH probe. Suitable
for general laboratory, swimming pool and water
monitoring applications.
SPH1-WP-DJ
Double-junction polycarbonate body pH probe. Suitable
for general laboratory, swimming pool and water
monitoring applications.
SPH2-WP-SJ
Single-junction epoxy body pH probe. Suitable for general laboratory, swimming pool and water-monitoring applications.
SPH3-WW-DJ
Double-junction glass body pH probe. Suitable for fish
farming, galvanic processes and wastewater, drinking
water and cooling water treatment.
SPH4-HP-DJ
Double-junction glass reinforced pH probe. Suitable for
fish farming, galvanic processes and wastewater, drinking
water and cooling water treatment.
SPH4-HT-DJ
Double-junction, high-temperature, triple-ceramic
diaphragm pH probe with reinforced glass body. Suitable for ammonia, chrome plating, reverse osmosis, galvanic
processes and bisulfite applications.
SPH4-LC-DJ
Double-junction pH probe with reinforced-glass body.
Suitable for fish farming, galvanic processes and
wastewater, drinking water and cooling
water treatment.
SPH4-CR-DJ
Double-junction pH probe with reinforced-glass body
and single ceramic diaphragm. Suitable for ammonia,
chrome plating, reverse osmosis, galvanic processes and bisulfite applications.
SPH4-HF-DJ
Double-junction pH probe with reinforced-glass body,
resistant to fluorides. Suitable for wastewater, drinking
water, fish farming, well water and galvanic processes.
ORP probes
Advanced probes for ORP measurement
In aqueous solutions, ORP is a good measure of the effectiveness of
disinfectants present in the water. In a swimming pool, the higher
the oxidation potential, the more efficient the disinfectant. In water
monitoring, the ORP value therefore provides the operator with a quick
indication of the effectiveness of the disinfectant present in the water.
This allows the operator to evaluate if the current situation is adequate
or if it is instead necessary to dose additional disinfectant.
An ORP probe consists of a measuring electrode in contact with the
solution and a reference electrode with stable potential.
SRH1-WP-SJ
Single-junction polycarbonate-body ORP probe with
platinum electrode. Suitable for general laboratory,
swimming pool and water-monitoring applications.
SRH1-WP-DJ
ORP probe with polycarbonate body, double junction
and platinum electrode. Suitable for general laboratory,
swimming pool and water-monitoring applications.
SRH1-WP-AU
ORP probe with single-junction polycarbonate body and
gold electrode. Suitable for general laboratory, swimming
pool and water-monitoring applications.
SRH2-WP-AU
Single-junction epoxy-body ORP probe with gold
electrode. Suitable for general laboratory, swimming pool
and water-monitoring applications.
SRH3-WW-DJ
Double-junction glass-body ORP probe with platinum
electrode. Suitable for wastewater, anti-legionella
disinfection, drinking water and galvanic processes.
SRH4-HT-DJ
ORP probe with reinforced-glass body, double junction
and platinum electrode. Suitable for ammonia,
chrome plating, reverse osmosis, galvanic processes
and bisulfite applications.
Conductivity probes
State-of-the-art probes for ultra-accurate
conductivity measurement
Conductivity represents one of the fundamental parameters
in determining the quality of water and liquids in general
because it is linked to the concentration of ions responsible
for electrical conduction in a solution. Electrical conductivity
is the reciprocal of electrical resistivity and measures the
ability of a solution to conduct an electric current when an
alternating voltage is applied to a measuring cell made up of
two or four electrodes. To compensate for the geometry of
the cell, each probe is characterised by a constant that can
be expressed in two ways which are the inverse of one another
and are indicated with the letters K and C, the first expressed
in cm and the second in cm-1. The conductivity of a solution is
generally expressed in μS/cm.
CK-1-SS-PP
Medium conductivity probe, with steel electrodes and
PP body without temperature sensor. Suitable for reverse
osmosis, irrigation, wastewater, drinking water and
cooling-tower water treatment.
CK-5-SS-PP
Probe for medium-low conductivity, with steel electrodes
and PP body without temperature sensor. Suitable for
reverse osmosis, irrigation, wastewater, drinking water
and cooling-tower water treatment.
CK-10-SS-PP
Low-conductivity probe, with steel electrodes and PP
body without temperature sensor. Suitable for reverse
osmosis and fish farming.
CTK-1-SS-PP
Medium-conductivity probe, with steel electrodes, PP
body and temperature sensor. Suitable for irrigation,
wastewater, drinking water and cooling water.
CTK-5-SS-PP
Probe for medium-low conductivity, with steel electrodes,
PP body and temperature sensor. Suitable for irrigation,
drinking water and cooling water.
CTK-10-SS-PP
Low-conductivity probe, with steel electrodes, PP body
and temperature sensor. Suitable for reverse osmosis
and fish farming.
CTK-1-SS-PF
Probe for medium-high conductivity, with steel
electrodes, body in PTFE and temperature sensor.
Suitable for reverse osmosis, irrigation, wastewater,
drinking water and cooling water.
CTK-100-SS-SS
Probe for extra-low-conductivity values, with steel
electrodes, steel body and temperature sensor. Mainly
suitable for reverse osmosis applications.
CTK-1-GR-PP
Probe for medium-high conductivity, with graphite
electrodes and PP body loaded with graphite and
temperature sensor. Suitable for drinking water, industrial
processes, boilers, wastewater and salt water.
CTK-1-GR-EX
Probe for medium-high conductivity, with graphite
electrodes, epoxy body and temperature sensor. Suitable for
irrigation, wastewater, drinking water and cooling water.
CK-1-PT-GL
Probe for medium-high conductivity with platinum
electrodes and glass body without temperature sensor.
Suitable for reverse osmosis and fish farming.
CTK-01-PT-EX
High-conductivity probe with platinum electrodes, epoxy
body and temperature sensor. Suitable for wastewater
and salt water.
CTK-10-PT-EX
Extra-low-conductivity probe with platinum electrodes,
epoxy body and temperature sensor. Suitable for
irrigation, wastewater, drinking water and cooling water.
CTK-0.1-GR-EX
Probe for high conductivity, with graphite electrodes,
epoxy body and temperature sensor. Suitable for irrigation,
wastewater, drinking water and cooling water.
Dissolved oxygen probes
For precise measurement of dissolved oxygen
Dissolved oxygen (DO) is a measure of the concentration of free oxygen
molecules present in water. The concentration of DO is an important indicator of
the health of an aquatic ecosystem and fundamental for almost all forms of life.
Dissolved oxygen in water comes from two main sources: the atmosphere and
photosynthesis. The main factors that affect its concentration are temperature,
altitude, salinity and the water’s degree of stagnation or movement.
S423C OPT PVC
Optical measurement using the luminescence method;
high precision and short response time; 4 – 20 mA output.
Suitable for wastewater, sludge treatment, fish farming
and biological treatments.
Flow-rate sensors
Guaranteeing accurate, repeatable results in
flow-rate measurement
The flow can be expressed as volumetric flow rate,
mass flow rate or in terms of volume or total displaced
mass. The measurement is obtained using two devices:
one, primary, which is placed in direct contact with the
fluid and which generates a signal and one, secondary,
which translates this signal into a movement or a signal
to indicate, record, control or calculate the flow. Other
devices indicate or calculate the flow directly through
the interaction of the fluid flowing in the pipeline
and the measuring device which is placed directly or
indirectly in contact with the fluid.
SFWE
Measurement range 0.15 – 8 m/s
Pipe size range DN15 – DN600
Pressure / Operating temperature 16 bar at 25°C ;
8.6 bar at 70°C
Enclosure material ABS ; Degree of protection IP65 ;
Body material SS 316L / PVDF ; Seals FPM ;
Electrode materials SS 316L
Electrical connection Cable not included ;
Mechanical connection Insertion in probe holder
Power supply 5 – 24 Vdc ; Frequency output 0 – 500 Hz
Analogue output 4 – 20 mA
SFW PVC-C
Measurement range 0.15 – 8 m/s
Pipe size range DN15 – DN600
Pressure / Operating temperature up to 10 bar at 25°C ;
up to 1.5 bar at 80°C
Body material C-PVC ; Seals EPDM or FPM ;
Rotor ECTFE (Halar®)
Shaft and bearings Ceramic ;
Electrical connection Cable not included ;
Mechanical connection Insertion in probe holder
Power supply 5 – 24 Vdc ;
Frequency output 45 Hz per m/s (nominal)
SFW PVDF
Measurement range 0.15 – 8 m/s
Pipe size range DN15 – DN600
Pressure / Operating temperature up to 10 bar at 25°C ;
up to 2.5 bar at 100°C
Body material PVDF ; Seals EPDM or FPM ;
Rotor ECTFE (Halar®)
Shaft and bearings Ceramic ;
Electrical connection Cable not included ;
Mechanical connection Insertion in probe holder
Power supply 5 – 24 Vdc ;
Frequency output 45 Hz per m/s (nominal)
SFW SS
Measurement range 0.15 – 8 m/s
Pipe size range DN15 – DN600
Pressure / Operating temperature up to 25 bar at 120°C
Body material SS 316L ; Seals EPDM or FPM ;
Rotor ECTFE (Halar®)
Shaft and bearings Ceramic ;
Electrical connection Cable not included ;
Mechanical connection Insertion in probe holder
Power supply 5 – 24 Vdc ;
Frequency output 45 Hz per m/s (nominal)
Chlorine probes
Ensuring consistently accurate chlorine measurement
Chlorine is a compound used directly or indirectly in various sectors such as paper, antiseptics, dyes, food,
insecticides, paints, petroleum products, plastics, medicines, fabrics, solvents and many other consumer
products. It is used to kill bacteria and other microbes in the drinking water supply and in the swimming pools.
Chlorine is also used in bleaching wood pulp for paper making, while bleach is also used industrially to remove
ink from recycled paper.
Free chlorine, chlorine dioxide and total chlorine are usually measured to monitor and control the disinfection
of drinking water, recycled water or water in swimming pools. In fact, when chlorine is added to water, it reacts
with the organic compounds and metals present in the liquid, forming combined chlorine. Combined chlorine is
not active for disinfection.
FCL - Chlorine free
Sealed-cell chlorine sensor, 4 – 20 mA output with
automatic temperature compensation. Guaranteed
accuracy with a short response time thanks to active
amperometric measurement.
FCL HP - Free high-pressure chlorine sensor
Sensor for the measurement of inorganic free chlorine
with open measuring cell, 4 – 20 mA output and
automatic temperature compensation. Guaranteed
accuracy and short response time thanks to active
amperometric measurement. It can be used for the
measurement of free inorganic chlorine at high pressure
(up to 8 bar). Ideal for drinking water, waste water,
process water, sea water and swimming pools.
DCL - Chlorine dioxide
Sealed-cell chlorine dioxide sensor, 4 – 20 mA output
with automatic temperature compensation. Guaranteed
accuracy and short response time thanks to active
amperometric measurement. Suitable for drinking water
and swimming pools.
DCL HP - High-pressure chlorine dioxide
Open-cell chlorine dioxide sensor, 4 – 20 mA output
with automatic temperature compensation.
Guaranteed accuracy and short response time
thanks to active amperometric measurement.
Suitable for the measurement of chlorine dioxide
at high pressure. Suitable for drinking water,
wastewater, process water, swimming pools
and seawater.
TCL - Total chlorine
Total chlorine sensor with sealed cell, 4 – 20 mA output
and automatic temperature compensation. Guaranteed
accuracy and short response time thanks to active
amperometric measurement. Suitable for drinking water,
swimming pools and sea water.
Probes for peracetic acid
For superior peracetic acid measurement
Peracetic acid is also used for the spray washing of food products and for the disinfection of cooling water
systems. As a disinfectant agent, PAA is often preferred over chlorine products because it does not dissociate
into potentially harmful products. Peracetic acid sensors are amperometric devices isolated from water by a
permeable membrane. When the PAA diffuses through this membrane, it comes into contact with an active
electrode and is reduced on its surface. Consequently, the sensor generates a current proportional to the
concentration of PAA. Peracetic acid sensors require a constant flow of the liquid under examination through
the membrane placed on the tip of the probe. Sample agitation is required and therefore not recommended in
still water.
PAA - Peracetic acid
Peracetic acid sensor with 4 – 20 mA output and
automatic temperature compensation. Precision,
accuracy and reliability guaranteed with a very short
response time. Suitable for fresh water and for all types
of water treatment, especially for disinfection in sensitive
uses, in the food, pharmaceutical and medical sectors.
Can also be used in wastewater treatment.
Probes for hydrogen peroxide
Achieve repeatable results in hydrogen peroxide measurement
Hydrogen peroxide is also used for washing food products and for disinfecting cooling water systems. As a
disinfectant agent it is often preferred to chlorine-based products because it does not separate into potentially
harmful products. Hydrogen peroxide sensors are amperometric devices isolated from water by a permeable
membrane. When the peroxide diffuses through this membrane, it comes into contact with an active electrode
and reduces on its surface and, consequently, the sensor generates a current proportional to its concentration.
The sensors require a constant flow of the liquid under test through the membrane placed on the tip of the
probe. Sample agitation is required and therefore not recommended in still water.
H2O2 - Hydrogen peroxide
Hydrogen peroxide sensor with low flow rate
dependence, with 4 – 20 mA output, membrane resistant
and insensitive to surfactants and automatic thermal
compensation. Guaranteed precision and accuracy, plus
quick commissioning thanks to reduced initialisation
times. No faults caused by turbidity or colouring courtesy
of the amperometric measurement principle.
Bromine probes
For superior bromine measurement
As an alternative to chlorine compounds, bromine compounds are increasingly used for the disinfection
of water, despite the greater reagent costs. In disinfection, bromine has some advantages over chlorine
compounds: greater disinfectant action at high pH values, less volatility at higher temperatures, less resulting
corrosion, less formation of unpleasant odours and finally less irritation of mucous membranes due to bromine
compounds liberated (bromine combined).
Br - Bromine
Sealed-cell bromine sensor, 4 – 20 mA output and
automatic temperature compensation. Guaranteed
accuracy and short response time, thanks to active
amperometric measurement. Suitable for process water,
cooling water, swimming pool and seawater.
Ozone probes
For professional ozone measurement
As an alternative to chlorine compounds, bromine compounds are increasingly used for the disinfection
of water, despite the greater reagent costs. In disinfection, bromine has some advantages over chlorine
compounds: greater disinfectant action at high pH values, less volatility at higher temperatures, less resulting
corrosion, less formation of unpleasant odours and finally less irritation of mucous membranes due to bromine
compounds liberated (bromine combined).
O3 - Ozone
Ozone sensor with 4 – 20 mA output, surfactant resistant
membranes and automatic temperature compensation.
Guaranteed precision and accuracy with a short response
time thanks to the active amperometric measurement.
Long service life courtesy of membrane-covered
measuring electrodes inserted into an electrolyte. In this
way, optimal measurement conditions can be maintained
regardless of process conditions. Suitable for fresh water
ready for use and salt water.
Turbidity probes
The professionals’ choice for repeatable turbidity measurement
The term turbidity indicates the reduction in transparency of a water sample due to the presence of suspended
substances. The measurement of water turbidity is based on the amount of light scattered by the particles
present in the water column and is considered a good measure of water quality.
S462 PW
The measuring principle of the probe is based on the
deviation of the light produced by the suspended
particles in the liquid. The absence of contact with the
measuring liquid and the LED optical technology makes
the system stable over time and minimises the need for
recalibration. Suitable for water treatment, filtration or
decantation plants, wastewater refining for agricultural
or industrial reuse, swimming pools and the food industry,
especially wine and beer production.
S461 LT
Sensor suitable for low turbidity levels; made of PVC
with 4 – 20 mA output. Guaranteed accuracy and short
response time. Suitable for water-treatment, swimming
pools and drinking water applications.Sensor for the measurement of inorganic free chlorine
with open measuring cell, 4 – 20 mA output and
automatic temperature compensation. Guaranteed
accuracy and short response time thanks to active
amperometric measurement. It can be used for the
measurement of free inorganic chlorine at high pressure
(up to 8 bar). Ideal for drinking water, waste water,
process water, sea water and swimming pools.
S461 LT SS
Sensor suitable for low turbidity made of steel with
4 – 20 mA output. Guaranteed accuracy and short
response time. Suitable for the food industry and for the
beverage packaging sector.
S461 MT
Low / medium-turbidity sensor in PVC, with 4 – 20 mA
output. Guaranteed accuracy and short response time.
Suitable for untreated water, well water, surface water
and waste water.
S461 ST
Sensor suitable for medium / high-turbidity values; made
of PVC and equipped with 4 – 20 mA output. Guaranteed
accuracy and short response time. Suitable for untreated
water, well water, surface water and waste water.
S461 HT
Sensor used for high-turbidity values; made of PVC,
with 4 – 20 mA output. Guaranteed accuracy and short
response time. Suitable for sludge treatment.
Probes for suspended solids
Monitoring suspended solids in industrial and wastewater is
useful for process control
Sensors for suspended solids are optical devices that operate
in the infrared range. Unlike turbidity probes, they use “back-
diffusion” to allow the detection of suspended solids larger
than those found by turbidity sensors and to measure the
concentration. Operation using infrared light ensures a very
long sensor life and minimises the effects of colour change in
the sample.
S461 S
Suspended solids sensor with steel body and 4 – 20 mA
output. Precision and degree of accuracy guaranteed
with excellent response time control. Suitable for sludges
from biological processes, paper mills, chemical industry,
food, extraction plants, quarries, tunnel construction and
aggregate extraction.
Temperature probes
For ultra-reliable, consistent temperature measurement
Temperature is a critical parameter for determining water quality and is of
fundamental importance for the environment. It determines the maximum
concentration of dissolved oxygen in the water and affects the speed of
chemical and biological reactions. Temperature is intrinsically a measure of
the thermal state of a material.
PT100 NUT
Measurement range 0 – 100°C
Pressure range 0 – 7 bar
Body material PP
Sensor PT100
Electrical connection 3 m bipolar cable ;
Mechanical connection 3⁄4” or 1⁄2” Gas M
PT100 V
Measurement range 0 – 100°C
Pressure range 0 – 7 bar
Body material Pyrex
Sensor PT100
Electrical connection 5 m tripolar cable ;
Mechanical connection 12 mm
PT100 VPG
Measurement range 0 – 100°C
Pressure range 0 – 7 bar
Body material Pyrex
Sensor PT100
Electrical connection 5 m tripolar cable ;
Mechanical connection PG 13.5 mm
Probe Holders
Patented modular probe holder, with open amperometric cell for chlorine
measurement (organic and inorganic) and flow sensor
Open amperometric probes offer stable and accurate measurements to
determine chlorine concentration. They exploit the potential difference that
is created between a pair of electrodes, one copper and the other platinum,
when they are crossed by a stable flow of water in which chlorine ions are
present. This type of cell is normally positioned by creating a “by-pass”,
in parallel to the main pipeline of the process, and making sure that it is
crossed by a constant flow which, to ensure the best measurement quality,
must be stabilised around 15.9 gph.Temperature is a critical parameter for determining water quality and is of
fundamental importance for the environment. It determines the maximum
concentration of dissolved oxygen in the water and affects the speed of
chemical and biological reactions. Temperature is intrinsically a measure of
the thermal state of a material.
Chlorine amperometric cell
Measurement range 0 – 5 ppm
pH range 6.5 – 8.2
Operating temperature 0 – 60°C
Pressure range 0 – 6 bar
Electrodes Copper and platinum
PSS Plexi
Material Transparent PMMA
For probes from PG 13.5, 24, 36, 42 mm
Operating temperature 0 – 60°C
Pressure range 0 – 5 bar
Flow rate range Approximately 60 l/h
Hydraulic connection 8 x 12 mm tube
Probe holder for continuous flow, immersion and in-line insertion
A complete range of probe holders for professional installations
SEKO’s range of probe holders offers safety,
reliability and convenience when it comes to
measuring pH, ORP, dissolved oxygen and
conductivity. The product range extends
from immersion, in-line and continuous flow
supports, up to fully-automated calibration
and cleaning systems.
Flow-through holders
Used for measurement in either a by-pass or directly in the main pipeline for
all industrial processes
The PSS7 is used for in-line measurements, in which a part of the flow of the
liquid under examination is taken from the main line to pass it through the
probe holder
Single
Material (head) PP (Polypropylene)
Material (glass) SAN (Styrene Acrylonitrile)
Probe holder housing Female thread 3⁄4” GAS
Hydraulic connection 4 x 6 mm / 8 x 12 mm (tube)
Operating temperature 0 – 40°C
Pressure range 0 – 6 bar
PSS8 A / PSS8 A HP
Material (head) PP Black
Material (glass) Transparent PMMA
Probe holder housing PG 13.5 and 12 mm
Operating temperature 0 – 40°C
Pressure range 0 – 2 bar – standard version
0 – 5 bar – HP version
pH range 4 – 10
Flow sensor Integrated reed
PSS8 A1 / PSS8 A1 HP
Material (head) PP black
Material (glass) PP black
Probe holder housing PG 13.5 and 12 mm
Operating temperature 0 – 40°C
Pressure range 0 – 2 bar – standard version
0 – 5 bar – HP version
pH range 2.7 – 12
Flow sensor Integrated reed
PSS8 B1 HP
Material (head) PP black
Material (glass) PP black
Probe holder housing 33, 36 and 42 mm
Operating temperature 0 – 40°C
Pressure range 0 – 5 bar
pH range 2.7 – 12
Flow sensor Integrated reed
PSS8 C
Material (head) PP black
Material (glass) Transparent PMMA
Probe holder housing 24 mm
Operating temperature 0 – 40°C
Pressure range 0 – 2 bar
pH range 4 – 10
Flow sensor Integrated reed
In-line probe holder
Suitable for aggressive chemical processes as well as for applications with
high-level hygiene requirements
These probe holders are used to insert a probe directly into the tube where the process liquid passes. The probes must
be positioned vertically or inclined, at a maximum of 45°, in the direction of the flow. The section of the pipeline, where
the probe is inserted, must always be between two taps or isolation valves, so that the flow can be interrupted or
diverted during the maintenance phase of the probe or system.
PSS3 S
Simple and short pressurised connection in PP for low /
medium operating pressure, which allows the insertion
of a probe directly into the pipe where the liquid to be
measured passes with a maximum inclination of 45° in
the direction of flow. Suitable for swimming pools and
irrigation systems.
PSS3
Pressurised connection for high pressure in PVC, which
allows the insertion of a probe directly into the pipe
where the liquid to be measured passes with a maximum
inclination of 45° in the direction of the flow. Suitable for
swimming pools, wastewater, cooling water and irrigation
systems.Material (head) PP Black
Material (glass) Transparent PMMA
Probe holder housing PG 13.5 and 12 mm
Operating temperature 0 – 40°C
Pressure range 0 – 2 bar – standard version
0 – 5 bar – HP version
pH range 4 – 10
Flow sensor Integrated reed
SPP
Pressurised fitting for very high pressures that allows the
insertion of a probe directly into the pipe where the liquid
to be measured passes, with a maximum inclination of
45° in the direction of the flow. Suitable for swimming
pools, wastewater, cooling water and irrigation systems.
SPP FIL
Pressurised fitting for very high pressures that allows the
insertion of a probe directly into the pipe where the liquid
to be measured passes, with a maximum inclination of
45° in the direction of the flow. Suitable for swimming
pools, wastewater, cooling water and irrigation systems.
PSS EC
Drain support for Model CTK1, 5 and 10 conductivity
probes. Suitable for cooling towers, reverse osmosis and
irrigation systems.
Saddle brackets for SFW sensors
Bracket for mounting over pipes from DN50 to DN200.
Allows the insertion of a paddle wheel flow sensor of the
SFW family. Suitable for cooling-towers, reverse osmosis
and irrigation systems.