Products

ANSI/ASHRAE

S88

The S88 is a refresh of our popular S8 platform that defined modern sensor pin configurations. The same form factor, the same cost efficiency, designed for mass production and it of course come with the same pin configuration.

Defining attributes

Compliant with ANSI/ASHRAE Standard 62.1-2022
Compliant with RESET grade B
Compliant with WELL Building Standard® (WELL v2™)
Compliant with California Energy Code
Cost efficient
Low Power consumption
High Precision
Mass Production
Self-correcting

What we have done with the S88 is refresh its internals, ensuring a long period of support and availability moving forward. We’ve also made sure it meets the latest standards, including ASHRAE 62.1-2022 addendum ab. The appearance and I/O of the sensor remains identical, making sure that, should you choose, transitioning from the S8 to the S88 is as smooth as possible.

The S88 punches well above its weight in terms of both cost and size, and its ease of integration makes it an easy recommendation for a large variety of use cases.

We currently offer the S88 as a version optimized for low power applications and one for residential applications.

Article number	004-1-0101, S88 LP
Operating principle	Non-dispersive infrared (NDIR)
Measured gas	CO₂
Measurement range	400–10 000ppm
Accuracy	±40 ppm ±3% of reading¹
Operating range RH	<85 % RH
Operation range °C	<50 °C
Warm-up time	<10s
Response time	<30s
Power supply	4.5 - 5.25 V
Peak current	300 mA
Average current	≤18mA
Communication	Modbus protocol, UART
Outputs	Digital
Compliance	ANSI/ASHRAE Standard 62.1-2022, California Energy Code, RESET Standard Grade B, WELL Building Standard® (WELL v2™)
Maintenance	Maintenance free
Life expectancy	>15 years
Dimensions	33.9 x 19.8 x 8.7 mm (L x W x H)
Weight	5 g
Storage conditions	-40 - 70°C

±75ppm Accuracy at 600, 1000 and 2500ppm @ sea level, 77 °F (25 °C) (ANSI/ASHRAE compliance)

Article number	Product	Description
004-1-0101	S88 LP	S88 optimized for low power applications
004-1-0100	S88 Residential	S88 intended for residential IAQ applications