This EMF Meter can test electric field radiation and magnetic field emission to reach the optimal test result. It's widely used to test and learn electromagnetic radiation situation indoor and outdoor. Equipped with a built-in electromagnetic radiation sensor, which can display the radiation value on the clear LCD digital display after processing by control micro-chip. Features: One EMF Meter with Two Uses Measure Radiation Sound-light Alarm Data Hold Max Measurement Large & Clear LCD Display Easy to Operate with One-hand Operation Measure the Environment Temperature Color: Black Material: ABS Plastic Display: 4 digits LCD Display Unit: mG (Electric Field); μT (Magnetic Field) Range: Electric: 0~2000mG; Magnetic: 0~200μT Accuracy: ±5% (50μT to 200μT)μT at 50Hz or 60Hz Resolution: 1mG, 0.1μT Alarm Threshold: 40mG, 0.4μT Temperature: 0~50℃ / 32~122℉ Test Bandwidth: 30Hz-300Hz Number of Axis: Single Axis Inductive Head Sampling Rate: 0.5 Seconds Test Mode: Bimodule Synchronous Test Over Range Indication: LCD Displays "HI" Operating Temperature: 0~50℃, Relative Humidity 0~80% Storage Temperature: -10~50℃, Relative Humidity: 0~70% Power Supply: 3 * 1.5V AAA Battery (Included) Item Size: Approx. 130 * 50 * 27mm / 5.12 * 1.97 * 1.06in (L * W * H) Item Weight: Approx. 107g / 3.78oz Package Size: Approx. 16.5 * 7.7 * 3cm / 6.50 * 3.03 * 1.18in (L * W * H) Package Weight: Approx. 147g / 5.18oz Package List: 1 × Electromagnetic Radiation Detector(EMF Meter) 1 × User Manual (English + French + German + Italy + Spanish)