DC 0-100V 0-50A Dual LED Digital Volt Meter Ammeter Voltage AMP Power Meter 12v Features: The small size of the two-color dual instrument. Voltage and current can be displayed on the same screen at the same time This instrument test voltage, current, power supply is taken from the test loop. No additional power supply The the instrument test voltage supply range: DC0 ~ 100V Note: The maximum input voltage can not exceed 100V, otherwise there is the danger of burned The instrument is equipped with three wiring. Convenient access to car / battery car / motorcycle car line. Used to monitor the battery voltage, Grasp the battery voltage state, can also be used for other products, the use of Voltage/current measurement. Specification: Supply voltage: 0-100V Measuring Range: DC 0v-100V, minimum resolution: 0.1V Test current range: 0~50A (requires an external shunt) (connect with 50A/75mV shunt) not include) More than 10A need external shunt Operating Current: <60mA Display: 0.28 "LED, red color. Size (L*W*H): 48 × 29 × 21 mm Mounting cutout: 45.5 × 26.5 mm Measurement rate: ≥ 500mS / times Measurement accuracy: 1%(+ /-1) Extreme working conditions: 1.The minimum Operating voltage: +0 V 2.Maximum working voltage: +100 V 3.Operating temperature: -10 to +65 4.Operating Humidity: 10 to 80% (non-condensing) 5.Working pressure: 80 ~ 106kPa 6.Sun exposure: no direct exposure Package includes: 1* Dual LED Digital Volt meter Ammeter Voltage NOTE: Due to the light and screen setting difference,the item's color may be slightly difference from the pictures. Please allow slight dimension difference due to different manual measurement.