They also come with a 12VDC power supply that plugs directly into the monitor and mains power allowing for easy set up and installation.
The gas sensor board is factory set to one of three optional firmware settings to control the relay and alarm functionality:
Alarm above (AA) – The relay is programmed to energise above your defined set point. Typical applications include health and safety alarm warning systems and switching external equipment on and off.
Alarm below (AB) – The relay is programmed to energize below your defined set point. Typical applications include fail safe warning systems and control of an ozone generator.
Control 10% (C10) – The relay is programmed to open and close ±10% within your defined control band. Typical applications include maintaining a specific gas concentration between user defined levels via the control of an external device e.g. an ozone generator.
Plug and play monitor
Real-time gas concentrations shown continuously on display
Multiple outputs for control of external devices e.g. an ozone generator
Alarm options to signal gas exceedances for health and safety