Features: 1.The product consists of three measurement accuracies, +/-1%, +/-2%, +/-5%, with different grades for different prices.(The product for this order 's accuracy is +/-5% ) 2.Dedicated to measuring the surface flux density of permanent magnet materials B, range: 0 to 2400 mT 3.The value can be switched by one button: mT (mite) or G (gauss) 4.With automatic zero and auto range, and maximum hold function. 5.With backlight adjustment, power display and automatic shutdown function. 6.Light weight and low power consumption. Introduction: The design of hand-held digital Tesla meter follows the IEC-61010-1 safety standard, and conforms to the national verification regulation of JJG242-1995 Tesla meter. hand-held digital Tesla meter adopts not only the high-sensitivity Hall sensor and high-resolution A / D conversion chip,but also the popular single-chip computer technology and digital filtering technology . It has the advantages of high sensitivity,stable reading, low power consumption , and light weight. The measurement range is 0-2000 Mt, and the basic accuracy is 1%. It has the characteristics of automatic zero, automatic measurement range, keeping of maximum / minimum Specifications: The accuracy of the order product is 5%, if you need other accuracy, you can contact us Range :200 mT 2000 mT Range of measurements:0 ~ 120% Minimum resolution :10uT Basic accuracy :0~1000mT:2% ,1000mT~2400mT:5% Number of digits displayed :4 bits (Decimal) Power supply :one 9 V battery(battery is not included) Working temperature :0 ~ 50 Storage temperature :-20 ~ 50 Shape size :160 mm 80 mm 32 mm Device weight :260 g (including batteries and wires) Hall probe Longitudinal Hall probe, wire length is about 2 meters