Single relay that is typically configured to trigger at >30ppm CO, 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 CO cell has approx. a 5 year life span depending on the environment, however to maintain accuracy it should be calibrated annually. We provide full installation, servicing, calibration and maintenance packages. Please visit our service contract page for more information.