toxic gas detector / carbon monoxyde / nitrogen monoxide / electrochemical

The TunnelTech 501 CO sensor, is an essential part of any road or rail tunnel safety system. Firstly, it monitors the atmosphere within the tunnel and ensures that the tunnel ventilation system provides sufficient clean air to protect tunnel users health.

Carbon monoxide (CO) is a colourless, odourless toxic gas produced by incomplete combustion of vehicle fuels. Carbon monoxide is dangerous because it inhibits the blood’s ability to carry oxygen to vital organs such as the heart and brain.
Key Features

Electro-chemical cell sensor for Carbon Monoxide monitoring
Long life electro-chemical cell with minimal maintenance requirements
Outputs – Analogue 4-20mA output, RS 485 serial output
TUV certified for SIL 2 applications (IEC 61508 and EN 50402)
Four digit LED display for current gas concentration
Stainless steel enclosure to IP65