Brief introduction:
Portable gas detector for NH3 with external pump is suitable for the place which is very dangerous.
NH3 is kind of toxic gas, excessive absorption is harmful for human .
If you enter confined spaces, external aspirator pump is necessary.
Portable gas detector is taken by worker with themselves, when it's alarming, our workers have enough time to escape. The technology of portable gas detector reaches to the top grade in China.

Features:
-Reliable and durable fixed life by the imported sensor
-Automatical calibration and zero-set
-Apparent and Clear Display
Chinese menu, displaying real time and battery capacity, low battery indication and automatic turn-off for low voltage
-Rapid and effective warning with audible alarm, and extremely bright visual light alarm and vibrating alarm as standard.
-Advanced self-test of complete functions automatically when turned on
-1000 record capacity
-Alarm for sensor failure
-Password management to avoid wrong operation;
-Advanced self- calibration for accuracy.
Detailed image: