Generally accurate EMF devices. the reading was about 0.35 mg. However, it is very easy to get interference from nearby RF sources like WiFi etc. and the measurement will be very inaccurate.
π Dioxide Controller for Digital Gas Monitoring
5 Review
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
Digital multimeter RGK DM-12
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π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review