With high sensitivity, low drift hall sensor, and the application of advanced digital signal processing technology. 0-2000mT (20000Gs) wide measurement range. 2 magnetic field units for conversion: mT (), Gs (Gauss), 1mT=10Gs. With automatic range switching, one-click zero, maximum value retention function. Digital screen with backlight enhances reading experience no matter in the day or at night. Battery powered (not included), low power consumption. Energy-saving, about 5min automatic shutdown function.Compact and , easy to carry with a plastic box. Comes with standard radial Hall probe. Accuracy Level: ZMST-5: Level 5: 2.0% (0-1000mT), 5.0% ( 1000-2400mT) Auto Range: 200mT (2000Gs), 2000mT (2000Gs) Load Division Value: 0.01mT (1Gs), 0.1mT (1Gs) Power Supply: 9V 6F22 Battery (Not included) Working Environment: 0-50, 20-85%RH without condensation Storage Environment: -20-70, 85%RH without condensation Item Size: 160 x 75 x 34mm / 6.30 x 2.95 x 1.34inch Probe Length: 17cm / 6.69inch Wire Length: about 1m / 39.4inch Item Weight (without battery): 226g / 7.95oz Colour: Material:plastic Note:The mark on the product is 2500mT for the reason that its maximum measurement range is 2500mT, but for precise measurement it's 2000mT. Package Contents: 1 * Digital Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.