Products

Sunlight R290

Electronics with no moving parts makes Senseair Sunlight R290 robust and resistant to vibrations. Any application with a tough environment or in environments with explosion risk is benefited by the solid-state design. It is also the first NDIR sensor with LED technology that truly saves power while maintaining a high precision.

Senseair Sunlight R290 is designed for high volume production with full traceability by sensor serial number on all manufacturing processes and key components.

Every sensor is individually calibrated and is provided with UART (Modbus) and I2C interface. With the ABC function activated, the sensor is maintenance free.

This product is a module that is designed for simple integration into products. Senseair Sunlight R290 can be used in a wide range of refrigerant applications based on R290.

Defining attributes

Immunity to poisoning
Complies with
UL 60335-2-40 ed.4
IEC 60335-2-40 ed.7
IEC 60079-29-1
High accuracy
High resolution
Fast response time
-40 – 70 °C operating temperature
>15 years expected lifetime
Maintenance free

We at Senseair believe in quality and accuracy. When it comes to gas measurements, you want a sensor that you can always trust – without the need for maintenance. Equipped with a self-correcting algorithm (ABC: Automatic Baseline Correction), you can mount your Sunlight sensor and then leave it alone for 15 years while maintaining a robust system. Our Sunlight sensors are optimized for battery and wireless applications, or in places where you need a reliable and secure sensor with a long life.

Senseair’s Sunlight R290 can be used in a wide range of refrigerant applications. Using LED as the light source and a photodiode in the sensor section ensures highly safe operation of equipment that uses flammable refrigerants (R290).

Article number	009-4-0002
Operating principle	Non-dispersive infrared (NDIR)
Measured gas	Propane, R290
Measurement range	0–100% LFL
Accuracy	±5% LFL
Operating range RH	<95 % RH
Operation range °C	-40 - 70 °C
Warm-up time	TBA
Response time	TBA
Power supply	DC
Peak current	95 mA
Average current	94μA
Communication	I2C, UART
Outputs	TBA
Compliance	TBA
Maintenance	Periodic Zero calibration or ABC calibration
Life expectancy	>15 years
Dimensions	34 x 21 x 12 mm (L x W x H)
Weight	5 g
Storage conditions	-40-85 °C

Article number	Product	Description
009-4-0001	Sunlight R32	Robust and flexible refrigerant detection for R290
009-4-0002	Sunlight R290	Robust and flexible refrigerant detection for R290
006-1-0100	Sunlight CO₂	Robust and flexible refrigerant detection for R290