The Triplett EMF20 Magnetic Field Meter measures electro-magnetic field of extremely low frequency (ELF) from 30 to 300Hz produced from electric transmission equipment, power lines, microwave ovens, air conditioners, refrigerators, computer monitors, fans, hairdryers, and many other appliances. Measurements can be displayed in milligauss or µTesla. It features a single axis sensor, ±2.5%  accuracy, and a Max Hold function. Includes 9V battery and carrying case.

Features:

• Measures electro-magnetic field of extremely low frequency (ELF) from 30 to 300Hz Measurements can be displayed in milligauss or µTesla
• Single axis sensor
• ±2.5% accuracy
• Max Hold function

Specifications:

EMF20
Display	3-1/2 Digit LCD Display
milliGauss Range	200mG/2000mG
µTesla Range	20µT/200µT
Resolution	0.1mG/0.01µT
Frequency Response	30 to 300Hz
Accuracy	±(2.5% ± 6 digits) @50/60Hz
Sensor	Single Axis
Power	9V Battery
Dimensions	5.5 x 2.6 x 1.5'' (140 x 65 x 37.5mm)
Weight	6oz(170g)