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Sensor Core

(Senseair)

The Sensor Core is the name of a product that is designed by modularizing an infrared light source / an infrared sensor / arithmetic operation and light source driving circuits / optical components, which make up Senseair's NDIR type CO2 sensor. 

CO2 Sensors

Overview

Gas Detection Unit

 

This is a modularized product that contains an infrared light source, an infrared sensor, arithmetic operation and light source driving circuits, and optical components.

It outputs CO2 concentration values, so no additional calculations by the customer are required.

This product is ideal for customers who design their own circuits and enclosures for small CO2 measuring instruments.

Gas detection Unit

Specifications Comparison

Product name  Features ​Average current ​Measurement range Power supply ​Output Communication​
I2C​ UART​

Sunrise
​		 Low current consumption 34 uA​ 0-10,000ppm​ 3.05-5.5 V​ ​ ✓​ ✓​

Sunlight CO2
 		 Low current consumption 30uA or lower 400-10,000ppm​ 3.05-5.5 V​   ✓ ✓

S88
​		 Compact 18-30 mA​ 400-10,000ppm​ 4.5-5.25 V​ PWM / Digital   ✓​

S8
​		 Compact 18-30 mA​ 0-50,000ppm​ 4.5-5.25 V​ PWM / Digital   ✓​

K30​
 		 Multi function 40 mA​ 0-5,000ppm​ 4.5-14 V​ Analog / Digital ✓​ ✓​

Sunrise/Sunlight CO2

Senseair Sunrise/Sunlight CO2 (from Senseair corporation)

Senseair Sunrise/Sunlight CO2 is an NDIR type CO2 sensor that uses manufactured infrared LEDs and infrared sensors from AKM

Although the sensor accuracy is as high as ± (30ppm + 3% of the reading), the average current consumption is 34μA, so it can be powered by a battery.

It has a built-in Automatic Baseline Correction (ABC) algorithm which periodically performs calibration automatically, so it can be used without further maintenance after installation.

Evaluation kits are also available to start evaluation immediately.

Features

  • Low current consumption
  • Highly accurate
  • Built-in Automatic Calibration Algorithm (ABC Algorithm) 
  • I2C and UART interfaces
  • Complies with the ANSI/ASHRAE Standard 62.1-2022 Addendum ab  (*1)
[Notes]  *1 Sunrise only
Senseair Sunrise/Sunlight CO2 Senseair Sunrise/Sunlight CO2

Specifications

Product name

Sunrise

Sunlight CO2

Product number

006-0-0008

006-1-0100

Measurement range

0-10,000ppm

400-10,000ppm
Accuracy (*2)

+/- (30ppm +3% of reading)

+/- (50ppm +3% of reading)
Accuracy
(ANSI/ASHRAE standard 62.1) (*3)		 +/- 75ppm -

Peak current

< 125mA

< 80mA

Average current (*4)

34uA

30uA or lower

Communication

UART / I2C

UART / I2C

Dimensions

33.5 x 19.7 x t11.5mm

34 x 21 x t12mm           

Power supply

3.05-5.5V

3.05-5.5V
Operation
Temperature range		 0-50℃
 0-50℃
Compliance with RESET Grade A Grade B
Compliance with WELL Building Standard WELL v2 WELL v2

[Notes] 
*2 15-35℃, 0-85%RH, After three ABC period
*3 Measurement range: 1,501-2,500ppm
*4 Power supply 3.3V, Measurement period 16sec

Customer Stories

Customer stories

Customer stories

Customer stories

S88

Senseair S88 Family (from Senseair corporation)

Senseair S88 is a compact NDIR type CO2 sensor.

Being pin-compatible with Senseair S8, this product can be easily migrated from the existing system.
This product complies with the latest standard (ANSI/ASHRAE Standard 62.1-2022 Addendum ab) for indoor ventilation and air quality control and is suitable for applications such as HVAC for energy conservation and monitoring for improved indoor air quality.

Evaluation kits are also available to start evaluation immediately.

Features

  • Complies with the ANSI/ASHRAE Standard 62.1-2022 Addendum ab 
  • Compact
  • Highly accurate
  • Built-in Automatic Calibration Algorithm (ABC Algorithm)
Senseair S88 Senseair S88

Specifications

Product name

S88 RESIDENTIAL

S88 LP

Product number

004-1-0100

004-1-0101

Measurement range

400-10,000ppm

Accuracy (*1)

+/- (50ppm

+3% of reading)

+/- (40ppm

+3% of reading)
Accuracy
(ANSI/ASHRAE standard 62.1) (*2)
 +/- 75ppm

Peak current

300mA

Average current

30mA

<18mA

Alarm output
(Open / Close)

1000 / 800ppm

PWM output
(0-100% duty cycle)

for 0-2000ppm

Communication

UART

Dimensions

33.9 x 19.8 x t8.7mm

Power supply

4.5-5.25V

Operation
Temperature range

0-50℃
Compliance with RESET Grade B
Compliance with WELL Building Standard WELL v2

[Notes]
 *1 After three ABC period
 *2 Measurement range: 400-2,500ppm

S8

Senseair S8 Family (from Senseair corporation)

Senseair S8 is a compact NDIR type CO2 sensor.

It is widely used in energy-saving HVAC applications and monitoring applications for improving indoor air quality.

In addition to the UART interface, it also has an alarm output, so it can be easily installed in products.

Evaluation kits are also available to start evaluation immediately.

Features

  • Compact
  • Highly accurate
  • Built-in Automatic Calibration Algorithm (ABC Algorithm)
Senseair S8 Senseair S8

Specifications

Product name

S8 COMMERCIAL

S8 RESIDENTIAL

S8 LP

S8 2%

S8 5%

Product number

004-0-0010

004-0-0013

004-0-0053

004-0-0050

004-0-0017

Measurement range

0-10,000ppm

0-20,000ppm

0-50,000ppm

Accuracy (*)

+/- (30ppm

+3% of reading)

+/- (70ppm

+3% of reading)

+/- (40ppm

+3% of reading)

+/- (200ppm

+3% of reading)

+/- (200ppm

+10% of reading)

Peak current

300mA

Average current

30mA

<18mA

30mA

Alarm output
(Open / Close)

1000 / 800ppm

8500 / 6500ppm

PWM output
(0-100% duty cycle)

for 0-2000ppm

for 0-20,000ppm

for 0-50,000ppm

Communication

UART

Dimensions

33.9 x 19.8 x t8.7mm

Power supply

4.5-5.25V

Operation
Temperature range

0-50℃

5-50℃

[Notes] *1 After three ABC period

K30

Senseair K30 Family (from Senseair corporation)

Senseair K30 can be customized for a variety of sensing and control applications.

It has two analog outputs and two digital outputs, so this flexible product it can be used with the Senseair Development Kit and UIP5 in custom configurations.

Evaluation kits are also available to start evaluation immediately.

Features

  • Custom configuration support
  • Highly accurate
  • Analog and digital output
  • Built-in Automatic Calibration Algorithm (ABC Algorithm)
Senseair K30 Senseair K30

Specifications

Product name

K30

K33 LP T

Product number

030-8-0006

033-8-0008

Measurement range

0-5,000ppm

0-5,000ppm

Accuracy (*)

+/- (30ppm

+3% of reading)

+/- (30ppm

+3% of reading)

Peak current

<300mA

<300mA

Average current

40mA

<1.5mA

Linear analog output

(for 0 - 2,000ppm)

OUT1 : 0-4V

OUT2 : 1-5V

-

Digital output
(Low / High)

OUT3 : 700 / 800ppm

OUT4 : 900 / 1,000ppm

-

Communication

UART / I2C

UART / I2C

Dimensions

51 x 58 x t12mm

51 x 57 x t12.5mm

Power supply

4.5-14V

4.75-12V

Operation
Temperature range

0-50℃

[Notes] *1 After three ABC period

About Senseair

Senseair, which became a member of the Asahi Kasei Microdevices (AKM) Group in 2018, is a provider of gas sensors using NDIR: Non-Dispersive InfraRed technology. Our goal is to constantly develop and mass-produce new gas sensor technologies.