This NH3 transmitter detects gas concentration in the form of natural diffusion. The shell is made of aluminum, it is heat and corrosion resistance. It is also explosion proof. This transmitter is suitable for power plants, chemical industry, mining, tunnel, underground piping and more.

Specification
Range: 0 to 250 ppm
Explosion: Proof CE 101084
Output: 4 ~ 20mA
Supply: 12 VDC