Ammonian (NH3) Gas Sensor, 0-100ppm

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$211.69

The ammonian (NH3) gas sensor is a highly accurate detector for domestic and industrial use, detecting NH3 in the range of 0-100ppm. It utilizes electrochemical three-electrode technology, with a resolution of 1ppm, an error of ≤±3%, a repeatability of ≤±1%, a DC 5V power supply, a power consumption of ≤1W, and a fast response time of 90 seconds, as well as reliable Modbus-RTU communication. With 90 seconds fast response and reliable Modbus-RTU communication, it is an ideal choice for home/ industry gas detection.

SKU: ATO-GS-NH3

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Overview
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The high quality NH3 gas sensor is designed for accurate detection in the 0-100ppm range. The gas sensor operates at 5V ± 0.5V DC and consumes as little as ≤1W, making it ideal for domestic and industrial gas detection. It operates efficiently over a wide temperature range of -20°C to 50°C and relative humidity of 15% to 95% without condensation. Utilizing natural diffusion and an electrochemical tri-electrode, it has a resolution of 1 ppm and an error of ≤±3%. Communication is via the UART interface at a baud rate of 9600 in accordance with the Modbus-RTU protocol and features a 0-2V analog output. The gas sensor is lightweight (10 grams) and requires only 30 seconds to warm up, ensuring reliable and efficient detection of ammonia.

Module Features

NH3 gas sensor can be operated with electric hotplugging and unplugging.
Factory calibrated accurately, no need to re-calibrate for use.
Simultaneous digital (UART) and analog outputs for ease of use.
Standard MODBUS communication protocol.
Compatible with infrared, electrochemical, catalytic, semiconductor and other sensors.

Specification

Model	ATO-K-5S-NH3-100
Detecting Gas	Ammonia (NH3)
Detecting Range	0-100ppm
Working Voltage	DC 5V±0.5V
Power Consumption	≤1W
Working Temperature	-20℃~50℃
Humidity	15%~95%RH (no condensation)
Working Pressure	86~106Kpa
Adoption Method	Natural diffusion
Detection Unit	ppm
Resolution	1ppm
Technical Principle	Electrochemical three electrodes
Tolerance	≤±3%
Repeatability	≤±1%
Response Time	≤90s
Communication Format	UART baud rate 9600, data bit: 8; stop bit: 1; check bit: none
Communication Protocol	Modbus-RTU communication protocol
Analog Output	0~2V
Warm-up Time	30s (user adjustable)
Lifetime	2 years
Weight	10g

Structure

NH3 gas sensor structure

Note: Tolerance range ±0.25mm

Working Principle

Gas sensor module functional block diagram

Application

NH3 gas sensor application

Tips: How to maintain the ammonia (NH3) gas sensor?

Turn Off the Power: For safety, always turn off the power before starting maintenance.
Periodic Calibration: Calibrate the sensor periodically to maintain accuracy. Follow the manufacturer's instructions for calibration procedures.
Clean Environment: Keep the sensor free of dust and contaminants. Use a soft brush or compressed air to clean the sensor surface.
Check Connections: Check electrical connections for any signs of wear or corrosion. Make sure all connections are secure.
Avoid Moisture: Ensure that the sensor is not exposed to excessive moisture during maintenance to prevent damage.
Replacement Parts: Use only genuine replacement parts recommended by the manufacturer to ensure compatibility and reliability.
Documentation: Keep a log of maintenance activities, including calibration dates and any repairs performed.

Following these steps will help ensure the longevity and accuracy of your NH3 gas sensor.

Ammonian (NH3) Gas Sensor User Manual.pdf

Gas Sensor Application Specification.pdf

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