Single relay that is typically configured to trigger at >0.5% CO2, this can be used to activate an additional audio and visual remote alarm that can be mounted above entrance doors, warning users not to enter an unsafe environment.
The CO2 cell has an infinite life span depending on the operating conditions, however it is recommended that it is calibrated to maintain accuracy.
We provide full installation, servicing, calibration and maintenance packages. Please visit our service contract page for more information.