Application: Handheld digital WT10A gauss meter used to measure the magnetic field of the permanent magnet material surface, DC motors, speakers, magnetic separator, permanent magnetic separator magnetic field demagnetization and the leakage of the magnetic field, parts machining residual magnetic field. Model WT103 digital Tesla meter is controlled by the SCM, which is suitable for handle operation.It can be used to measure DC magnetic field and flux dencity.The device can be carried on one’s person. It is characterized by its wide measuring range,simple operation and clear display. It is still added with the function of maintenance such as holding Measure Value/Peak Value, As mT or Gs unit of display can be change over, Measuring range of 200mT or 2000mT can be chose, and others that as resetting zero by key and so on. The power supply is four No. 5 dry batteries, which can be used for about 20 hours. Reality Working Domain: 1) Magnetic field distribution of material surface 2) Working magnetic field produced fro some instrument that as iron-removing device,magnet-selecting machine, magnet chuck, magnet spool and demagnetizing coil 3) Leakage Magnetic iron-surface Measuring range: 0-200mT of 0-2000mT. Basic error: ±2% (0~200mT); ±5% (200~2000mT). Resolution force: 0.1mT, 1mT cents Benitez. Measured magnetic field: DC magnetic field (static magnetic field). Ambient temperature: 5℃~40℃. Relative Humidity: 20%~80% (non-condensing). Power supply: 4*AAA 1.5V battery or external power supply. Dimensions: 148mm × 70mm × 25mm. Instrument weight: 450g. Display mode: the measurement of the 3''1/2 LCD has a positive, negative, positive represents "N" pole, negative represents "S" pole. Display units: mT=milli tesla. Remarks: 1mT = 10Gs Gaussian. Package Included: 1 x Gaussmeter Tesla meter; 1 x User Manual; 1 x Metal Probe; 1 x DC Adapter; (includes AAA*4 Batteries )