Check the listing for details. DC Surface Magnetic Field Tester Gauss Meter Teslameter 0-200mT~2000mT. Condition: New. Listed at 217.98 USD. Gauss Meter Tester High Precision Residual DC Magnetic Field Tesla Tester Introduction:The Telemeters is a special instrument used for inspecting & checking flux density ,which is also one of the most universally devices in the field of magnetic measurement. Digital Telemeters is controlled by the SCM, which is suitable for handle operation.It can be used to measure DC magnetic field and flux density. 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 is one piece of battery 9V. It can be used continually about 20 hours. Reality Working Domain:1) Magnetic field distribution of material surface2) Working magnetic field produced fro some instrument that as iron-removing device,magnet-selecting machine, magnet chuck, magnet spool and demagnetizing coil3) Leakage Magnetic iron-surface4) 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* 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* Temperature of environment:5℃～40℃* Relative humidity :20%～80%(no condensation)* Power Supply Battery :9V,（Battery not included in the package）Or 9V DC external power supply regulator* Dimension :150mm(L)*70mm(W)*25mm(H)* Weight :400g* Standard Accessories: Digital Gauss meter, Instruction for use; Produce Certificate; Probe