Factory Price Ammonia Gas Sensor Electrochemical Nh3 Sensor


  • Product Code: FS01601
  • Availability: In Stock
  • Ex Tax: $38.00

The FS01601 NH3 sensor is based on a fuel cell-type electrochemical principle. Its working electrode and counter electrode undergo reduction reactions, resulting in the release of charges and the formation of a current. The magnitude of this current is directly proportional to the concentration of ammonia, following Faraday's law. By measuring the current, the concentration of ammonia can be accurately determined.


Detected Gas
Detection Principle
Three-electrode electrochemistry
Detection Range 
Maximum load capacity 
Detection Accuracy
Maximum error ≤ ±5% of reading
Response Time
T90 ≤60s
Operating Voltage
DC 3.7 ~ 5.5V
Operating Current
<0.3mA (@5V Power Supply)
Warm-up Time
3 mins
Detection Frequency
Default update rate is once per second
Output Mode
UART(3.3V_TTL Level)
Modbus-RS485 (Reserved)
4~20mA、0~5V、0~10V (customizable)
Service Life 
1 Year (in the air)
32.3x32.3x16.5 mm
Operation Temperature
Operation Humidity
0%~95%RH (No Condensation)
Storage Temperature
Storage Humidity
0~99%RH (No Condensation)
Pressure Range
800~1200 mbar


Utilizes high stability gas sensors and high-performance microprocessors for reliable performance.

Supports convenient UART output and Modbus-RS485 output.

Precise automation calibration and testing equipment ensure guaranteed accuracy and consistency of data.

Offers high sensitivity, stability, and resolution for accurate ammonia concentration detection.

Excellent anti-interference ability with temperature compensation to ensure reliable operation in various environments.

Provides an outstanding linear output, facilitating easy interpretation of ammonia concentration levels.

Demonstrates low power consumption and a long service life, ensuring cost-effectiveness and durability.

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