Product Introduction TRH-3351 can measure for a long time and has a CO2 concentration indicator light.
Measurement Specification
CO2 Measurement : 0~3,000 ppm
Temperature Measurement : 0~40 °C (32~104°F)
Humidity Measurement : 20~90 %RH CO2 Resolution : 1ppm @ 0~1,000ppm Temperature Resolution : 0.1°C (0.1°F) Humidity Resolution : 1 %RH CO2
Accuracy : ±50ppm @when less than 1,000ppm ,±70ppm @ when 1,000~2,000ppm . The other is 7% Temperature Accuracy : ±1°C (±2°F) Humidity Accuracy : ±5%RH @23°C CO2 Repeatability : ±20 ppm
Pressure Coefficient : 0.13% of reading/mmHg (you can enter the correct height yourself)
Temperature Coefficient : Change of reading per degree Celsius ±0.1% or ±2 ppm, whichever is greater, refer to 25°C
Humidity Time : Less than 5 minutes (63% change)
Opening Time Spending : The concentration value will be displayed for about 15 seconds after power on
Reaction Speed : Approx. 2mins (63% change)
Warn-up Time : Less than 60 seconds at 22°C (time from boot to completion of numerical display)
Display Choice : °F / °C, or Off.