NH3-B1 Ammonia Sensor

NH3 Gas Sensor, Electrochemical, B-Series, 0–100 ppm

B-Series ammonia sensor for fixed-site and high-humidity applications

The NH3-B1 is a 0–100 ppm biased ammonia sensor in the B-Series package, aimed at fixed gas detection and high-humidity industrial or agricultural sites. With 20–60 nA / ppm sensitivity and T90 < 150 s to 50 ppm, it offers reliable NH3 response and improved stability for larger fixed installations. Operating life exceeds 24 months (12-month warranted), with a cross-sensitivity profile suitable for real-world mixed-gas environments.
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Key Specifications:

 

Sensor Model

Target Gas

Package Size

Concentration Range

Sensitivity

T90 Response Time

Bias

Lifetime / Warranty

NH3-B1

Ammonia (NH3)

B-Series

0–100 ppm NH3

20 to 60 nA / ppm (in 50 ppm NH3)

< 150 s (0 →50 ppm step)

Required: +200 mV Tunable

> 24 months (12‑month warranted)

 

Feature

Benefit

B-Series package with higher electrolyte volume

Improved performance in high-humidity barns, greenhouses and industrial plants.

0–100 ppm NH3 range with +200 mV bias

Supports regulatory and process limits while enabling good selectivity.

High sensitivity (20–60 nA/ppm)

Delivers strong signal for fixed-site transmitters and long cable runs.

Defined cross-sensitivity limits

Simplifies compensation in environments containing other acidic or oxidising gases.

Tunable bias

Provides enhanced sensitivity to specific gases

Multi-year operating life

Reduces maintenance and calibration burden for fixed networks.