Description
Model A37 is used to detect CO2 concentration in different environments. The LCD displays CO2 concentration being measured, temperature, humidity, and date/time together. Air quality is indicated with emoticons. When CO2 concentration gets too high,
audible and visual alarm will go off.
 
Main Features
1. Automatic baseline correction
2. Audible and visual alarm
3. Low battery indication
4. Auto power off
5. Backlight
 
Specification
Specifications
Range
Resolution
Precision
Model
 
 
A37
Carbon dioxide
400ppm~5000ppm
1ppm
±5%rdg + 50ppm from 400ppm~2000ppm (at ambient temperature and humidity)
Temperature
-10.0℃~50.0℃
0.1℃
Typical accuracy: ±1℃
Relative humidity
0%RH~99%RH
1%RH
Typical accuracy: ±5%RH (10%RH～90%RH) at 25℃
Features
ABC
Automatic baseline correction
√
Audible and visual alarm
 
√
Sensor type
NDIR (no-dispersive infra) CO2 sensor
√
Response time
T90 < 2 minutes
√
Date/time
Display the date and time
√
Low power display
low power symbol keep flashing
√
Auto power off
auto power off if no opeartion for long time
√
Backlight
The white backlight can be turned on/off.
√
It will be automatically turned off after 20-minute inactivity.
Operating temperature
0℃～50℃, 0%RH～85%RH
√
Storage temperature
-20℃～60℃, 0%RH～95%RH
√
General Characteristics
Power
3.7V DC Li-ion battery/ Micro USB charging port
LCD size
42 x 65mm
Product color
White
Product net weight
about 195g
Product size
75 x 55 x 130mm
Standard accessory
Micro USB charging cable
Standard individual packing
Gift box, English manual
Standard quantity per carton
5pcs
Standard carton dimensions
360 x 185 x 140mm
Standard carton gross weight
2.35kg