Check the listing for details. AC DC Surface Magnetic Field Detector Teslameter Tesla Meter Gauss Meter. Condition: New. Listed at 308.00 USD. AC DC Surface Magnetic Field Detector Teslameter Tesla Meter Gauss Meter SJ700Shipping Policy : Battery is not included during the shippingIntroduction:▲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, The power is one piece of battery 9V. It can be used continually 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▲4) Magnetic field within the structure of the gap avoid condensation.▲5 )Never place the instrument in close the machine generating strong magnetic field, such as magnet-charger, demagnetize coil, microwave oven, electric welding equipment electric motor and etc.▲6)In conclusion, we suggest you to calibrate the instrument in time.Technical Specifications:▲Range: 0~200mT~2000mT▲Accuracy :±2%,±3 words; ±5%,±5 words(1000mT)▲Sensitivity :0.01mT, 0.1mT▲Measured magnetic field:DC and AC▲Display :4½ LED▲Application Examples :Magnet surface magnetic field, ferromagnetic material surface magnetic field, DC motor, speakers, magnetic separator, permanent magnetic separator of the surface magnetic field, the exchange frequency magnetic field, magnetic field induction cooker work▲Frequency magnetic field :DC~200HZ▲Temperature of environment:5℃～40℃; Relative humidity :20%～80%(no condensation)▲Power Supply Battery :9V,Or 9V DC external power supply regulator