2 in 1 LED Tachometer Gauge Digital RPM Voltmeter for Auto Motor Rotating Speed by Keaiduoa

Description

100% brand new and high qualitySpecification:Working Voltage: 8v~17vWorking Current: 40mAVoltage Accuracy: ±0.1V；Rotating Accuracy: ±30round/minMaximum Rotating Gauge: 100-31800round/minBulb Color: RedQuantity: 1 PcOther Fixtures:This meter displays car engine speed automatically. When car engine started, it begin to show the speed. If battery over voltage,which is bigger than 15V(>15V)The meter display speed will be flickering and flashing, which is alarm. and notify you this car battery voltage is over. If enginer speed over 10000 rpm/m, for example 15000r/min, the car tachometer will display -150Working Volt: DC 8V -17VCurrent: 40mAVoltage accuracy: +/- 0.1V ;Speed accuracy: +/- 30r/minPackage includes:1 x Tachometer Voltmeter(without retail package)