brand new and high quality Features: 1. One EMF Tester with two uses, testing the electric field and the magnetic field radiation at the same for time. 2. Measure radiation of high voltage power lines, appliances, electrical wires. 3. Sound-light alarm, when the test result exceeds the safe value, the instrument will alarm automatically. 4. Data hold and max measurement, one-key lock the radiation value. 5. Large & clear LCD display of the values for easy reading. 5. Easy to operate with easy one-hand operation, easy to carry and make field measurement. 6. Can measure the environment temperature with 2 temperature units ( and ) Color: Blue + Black Material: ABS Plastic Unit: mG (Electric Field); T (Magnetic Field) Accuracy: 5% (50T to 200T)T at 50Hz or 60Hz Range: Electric: 0~2000mG; Magnetic: 0~200T Resolution:1mG, 0.1T Alarm Threshold: 40mG, 0.4T Temperature: 0~50 / 32~122 Display: 4 digits LCD Display Test Bandwidth: 30Hz-300Hz Number of Axis: Single Axis Inductive for 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 (NOT Included) Item Size: Approx. 130 * 50 * 27mm / 5.12 * 1.97 * 1.06in (L * for W * H) Item Weight: Approx. 74g / 2.62oz Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 * Electromagnetic Radiation Detector 1 * User Manual (English)