GuardCard - For CO₂

The Guardcard range of infrared gas sensors offer high performance mains powered and highly accurate measurement of CO2 which includes an integral pump and volt free relay output.


The GuardCard includes an internal pump so it can be used for continuous monitoring and control either for a single area or integrated to a computer control for sequential monitoring or multiple areas.

As an OEM sensor, the GuardCard is a versatile device capable of interfacing into many applications with an optional display and alarm set point PCB available.

The heart of the instrument is a proprietary dual wavelength infra-red sensor which provides reliable accuracy and long term stability with low maintenance requirements.

Each GuardCard is supplied fully tested and calibrated with a 1 year warranty against defective workmanship and parts.