AZ7755 Handheld Indoor Air Quality Meter CO2 Gas Tester Humidity and Temperature Meter Carbon Dioxide Tester Fittings It is only used to

It is only used to tighten screws

Alarm Sound and Light "Beep-beep-beep" alarm tone

* Range: -200C~1300C（Varying depend on graduation）

pawkit water activity meter price can be used with some products (mostly synthetic products) as a means of indirectly measuring the total moisture content

Storage RH% ：Humidity <90%

AZ7755 Handheld Indoor Air Quality Meter CO2 Gas Tester Humidity and Temperature Meter Carbon Dioxide Tester Fittings It is only used toBrand: Graigar Color: Yellow Features: Design with NDIR (Non Dispersive Infrared) wave guide technology sensorBig LCD display with high resolution Triple displays of CO2 level, temperature and humidityBack light for working in dark area Display 8 hrs TWA value (time weighted average) & 15 minutes STEL value (short term exposure limit) Housing design surrounds with rails to help air ventilation for quick and accurate response Dual display 2 parameters