•One instrument with two usages, it can test the electric field and the magnetic field radiation at the same time •Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically •Data locking, one-key lock of the radiation value •LCD display of the values for easier reading •Radiation assessment, remind you whether the radiation value is safe or not. •Fashionable design, easy one-hand operation, easy to carry Specification: •Unit: field: V / m, the magnetic field uT •Accuracy: electric: 1V / m, magnetic 0.01uT •Range: electric: 1-1999V / m, magnetic 0.01-19.99uT •Alarm threshold: electric: 40V / m, magnetic 0.4uT •Test bandwidth: 3-1 / 2 LCD display •Sampling time: 5Hz-3500MHz •Test mode: approx. 0.4 seconds •Overload tip measured with dual-mode •Data lock: LCD displays "1" •Low light Display : √ •Automatic shutdown: √ •Average and peak: √ •Low power tips: √ •Operating temperature: 0°C-50°C •Operating humidity: 80% •Operating voltage: 9V •Dimensions: 63.6 x 31 x 125.8mm •Weight: 146g •Power: 6F229V battery (Not included) Package included: •1 x GM3120 LCD Electromagnetic Radiation Detector Tester •Accessory only, other items not included