
S494 N Free Chlorine Sensor
Membrane amperometric sensor for free chlorine
- 0–2 up to 0–2000 ppm
- pH 4–10
- 100–63,000 µS/cm
- 0–3 bar, 30–60 l/h
Water disinfection monitoring
Chemitec S494 N sensors & Series 46 transmitters — supplied across India by Parshvi Technology
Track free chlorine, total chlorine or chlorine dioxide continuously and drive dosing automatically — 0–2 ppm for drinking water up to 0–2000 ppm for process and CIP.
Products
Pick a model to get its price and datasheet — or tell us your water and range and we'll recommend one.

Membrane amperometric sensor for free chlorine

Sensor for total chlorine (free + combined)

Dedicated sensor for chlorine dioxide

Free / total chlorine / chlorine dioxide transmitter for dosing control
Brands we represent
Genuine products from 17 global manufacturers, supported in India by Parshvi Technology.

Auburn

Beck

Calex

Chemitec

Econox

Exner

Filsa

HAUBER-Elektronik

Halstrup-Walcher

Höntzsch

KxS

Kuntze

Pixsys

Produal

Seli

Shinko

Trumen
Selection guide
Which chlorine?
→ Free · Total · Chlorine dioxide
Free = active disinfectant; total adds chloramines; ClO2 needs its own sensor
Range
→ 0–2 ppm to 0–2000 ppm
Low range for drinking water, high range for process and CIP
Water chemistry
→ pH 4–10 · 100–63,000 µS/cm
Confirm your sample is inside the sensor's working window
Pressure & temperature
→ 0–3 bar · 0–45 °C
No pressure pulses; up to 70 °C on request
Automatic dosing
→ Series 46 transmitter
Display, alarms and dosing-pump control; can add pH
Why Parshvi
2011
Since 2011
17
Global brands
India & Asia
Serving India & Asia
Fast
Quote turnaround
Expert
Application engineering
Full
Warranty & official documentation support
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View products →Need something else? We supply 17 global brands — ask our engineer.
FAQ
Tell us your water, chlorine type and range — we'll recommend the right sensor and transmitter.