K75 LP battery

SenseAir® LP8 (soon to be released!)

Miniature CO2 sensor module for battery-powered applications.

 

Key Benefits

- 3.6 mC charge per measurement (11.9mJ@3.3V)
- Miniature size (SenseAir® S8 format)
- A wide supply voltage range enables a variety of battery options
- Adjustable measurement period by host
- Adjustable ABC period by host

 

 

Applications

SenseAir® LP8 targets low power and battery-powered applications.

 

Specifications

Preliminary Specification
Operating Principle Non-dispersive infrared (NDIR)
Measured gas Carbon dioxide (CO2)
Measurement range CO2 0 to 10 000 ppm
Accuracy ±50 ppm CO2 ±3 % of reading 1,4
RMS noise CO2 14 ppm at 400 ppm at 25 °C
25 ppm at 1000 ppm at 25 °C
Accuracy temperature ±0.7 °C
Dimensions 8 mm x 33 mm x 20 mm
Life Expectancy > 15 years
Operation temperature range 0 to 50 °C
Power supply 2.9 to 5.5 V
Peak current 125 mA
Shutdown current 1 µA 2,3
Charge per measurement 3.6 mC
Energy per measurement 11.9 mJ at 3.3V
Average current having
- 16 second measuring period
- 60 second measuring period
- 120 second measuring period
225 μA 2,3
61 μA 2,3
31 μA 2,3
CO2 measurement period ≥16 s
Communication UART, host-slave protocol

Note 1: 15 – 35 °C, 20 – 60 % RH after at least three (3) eight (8) days periods, each followed by ABC command set in the Calculation Control byte
Note 2: Resistor network for measuring VCAP voltage adds 14 µA @ 5.5 V
Note 3: External super-capacitor leakage is not considered
Note 4: Spec is ref. to uncertainty of calibration gas mixtures +-1%

 

Download

Product Specification

LP8 preliminary data sheet