GDLG JD-3001 Poor sensitivity! Geiger Counter, humidity, electromagnetic fields. full device review
This review about Chinese GDLG JD-3001 Geiger counter and meter of magnetic and electric field.
This device has inaccurate measurement parameters. Poor sensitivity of the device for determining humidity, electromagnetic radiation and radiation. Small measurement limits. Humidity starts to show from 30%. Check it before buying! Not recommend for professional use.