These sensors are Refrigerant Detection Systems (RDS) designed for HVACR applications. They operate on the thermal conductivity principle and include a dual dry-contact relay output to trigger a blower, shut off the load, or alert a control board.
An LED status indicator provides quick visual feedback for easy installation.
With fast response times and multi-refrigerant calibration, the devices support A2L refrigerants, making them ideal for residential and commercial systems.
The Sensirion SGD4x A2L Refrigerant Sensors meet industry standards like UL60355-2-40 and offer dual calibration for R454B and R32 in HVAC, plus triple calibration for R454A, R454C, and R455A in refrigeration systems.
