New AZ77535 Handheld Air Quality Monitor Carbon Dioxide CO2 Detector CO2 RH Temperature Meter Alarm RS232 Output 

Non-dispersive infrared sensor measurement 

LCD large screen display 

Maximum, minimum, average 

Quick Response 

Audible alarm settings 

Backlight 

RS232 serial output analysis once every 2 seconds 

Temperature Unit Conversion 

Low drift performance of carbon dioxide tester

Specifications: 

Model 

77535 

 CO2 range 

0 ~ 9999 ppm 

Humidity 

0.0 ~ 99% RH Accuracy: ±5% 

Temperature Measurement 

-10C ~ 60C (14 ~ 140F) Accuracy: ± 0.6C / ± 0.9F 

Dew Point 

-73.4 C ~ 60 C 

Wet bulb temperature 

-13.3 C ~ 60 C 

Resolution 

1ppm, 0.1C, 0.1% RH 

Warm-up time 

30 seconds 

Use of the environment 

Storage temperature: -20 ~ 60 C 

Storage humidity: 0 ~ 99% relative humidity (non condensing water vapor) 

The operable temperature range: 0 ~ 50 C 

Operational range of humidity: 0 ~ 95% relative humidity (non condensing water vapor) 

Meter size 

250 x 70 x 56mm (LxWxT) 

Package 

Host, manual, voltage converter 

Optional 

RS23 software + data line (230 yuan / set)