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A practical tool for electrician use. It is easy to use and the measured values are displayed directly on the screen. You can use to overtake all the kinds of circuit boards. It is also an ideal teaching tool for students. Small and compact design 3？-digit, 7-segment, 0.5 "LCD display high Max indicator: 1999 Auto polarity indicator Overload protection in all areas Sampling 2 ~ 3 times readings per second. Diode Mounting Test / Transistor PN junction test / transistor hfe test. Low battery voltage indicator. Model: DT830B Measuring range: Max AC current: 10A Max AC voltage range: 1000V Max DC voltage range: 750V Resistance measurement: 200 Ohm-2000K Ohm range Scale and accuracy: Power supply: 9V 6F22 battery Dimension: 125x70x23mm Color ： yellow Material: Plastic Package Included: 1 x Digital Multimeter 2 x measuring lines line (red and black) 1 x manual Note: Light shooting 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.