Features:
Dual Testing Functions: the EMF meter can accurately detect and measure the electric field radiation and magnetic field emission at the same time. It also can measure the environment temperature(/).
Audible and Visual Dual Alarm: if the tested value exceed the preset alarm value, it will produce sound and light alarm signal immediately.
Wide Detecting Frequency & Measurement Range: 20Hz~300Hz magnetic field and 20Hz~3500MHz electric field of working frequency range; 0.01~199.9T(0.1~1999mG) magnetic field and 0~1999V/m electric Field of measuring range.
User-friendly Design: soft operating buttons for the alarm value setting, MAX/AVG value switching, and units conversion, the mini pocket size EMF tester just powered by 3pcs AAA batteries, which makes it convenient for using and carrying.
High Precision & Sensitivity: reliable for measure electric and magnetic field radiation of mobile phone, hair dryer, computer, TV, printer, attendance machine, refrigerator, etc.

Specifications:
Material: ABS
Magnetic Field Strength Range: 0.01~199.9T(0.1~1999mG)
Electric Field Strength Range: 0~1999V/m
Magnetic Field Strength Resolution: 0.01T/0.01mG
Electric Field Strength Resolution: 1V/m
Magnetic Field Strength Frequency Range: 20Hz~300Hz
Electric Field Strength Frequency Range: 20Hz~3500MHz
Temperature Measurement Range: -10~50
Temperature Resolution: 0.1
Power Supply: 3 * 1.5V AAA battery (NOT included)
Item Size: 130 * 50 * 27mm / 5.12 * 1.97 * 1.06in
Item Weight: 85g / 2.99oz
Package Weight: 127g / 4.48oz
Package Size: 19.3 * 7.5 * 3.5cm / 7.60 * 2.95 * 1.38in

Packing List:
1 * EMF Tester
1 * Manual (English)