Air Quality Sensors – Mouser Philippines

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A2L Refrigerant Sensors

Sensirion A2L Refrigerant Sensors are Refrigerant Detection Systems (RDS) designed for HVACR applications. The Sensirion A2L sensors 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.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PHP) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Type	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series
	Air Quality Sensors A2L Refrigerant Sensor, R-32, R-454B 8 Pin, 24V, RS485, Relay SGD43S-M3-S5 Sensirion 1: ₱3,515.36 322In Stock New Product	Mfr. Part # SGD43S-M3-S5 Mouser Part # 403-SGD43S-M3-S5 New Product	Sensirion	Air Quality Sensors A2L Refrigerant Sensor, R-32, R-454B 8 Pin, 24V, RS485, Relay Learn More about Sensirion sgd4x refrigerant sensors	Datasheet	322In Stock	₱3,515.36 ₱3,244.80 ₱3,051.55 ₱2,966.27 View ₱2,867.50 ₱2,827.01 ₱2,826.39	Min.: 1 Mult.: 1			Gas Sensor	18 V	30 V	- 40 C	+ 85 C	SGD4x
	Air Quality Sensors A2L Refrigerant Sensor, R-454A/R-454C/R-455A 8 Pin, 24V, RS485, Relay SGD43S-M3-S7 Sensirion 1: ₱4,119.65 195In Stock 600Expected 11/11/2026 New Product	Mfr. Part # SGD43S-M3-S7 Mouser Part # 403-SGD43S-M3-S7 New Product	Sensirion	Air Quality Sensors A2L Refrigerant Sensor, R-454A/R-454C/R-455A 8 Pin, 24V, RS485, Relay Learn More about Sensirion sgd4x refrigerant sensors	Datasheet	195In Stock 600Expected 11/11/2026	₱4,119.65 ₱3,606.77 ₱3,413.51 ₱3,049.71 View ₱3,002.47 ₱2,945.41 ₱2,887.13 Quote	Min.: 1 Mult.: 1			Gas Sensor	18 V	30 V	- 40 C	+ 85 C	SGD4x

A2L Refrigerant Sensors

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