2 In 1 Air Fuel Gauge Voltmeter 12v 52mm Digital Car Afr Volt Meter Indicator Voltage Gauge with O2

Working Voltage: DC12VSignal Voltage: 0-1VSpiral: x 1.5Use Wrench: 22mmOutput Voltage: Maximum value 900mv\/ minimum value less than 50mv.How to Connect the Gauge to Sensor:The white is at heater Black signal C, gray signal ground DThe green wire of the instrument is connected with the black wire of the sensor. The gray is connected to the negative of the battery.One white wire connect with the car shell or battery negative .Another white wire connect to the of ignition switchThe white is the heater and does not distinguish between and negative electrodesResponse time: (600mV-300mV) less than 100ms.Response time: (300mV -600mV) less than 100ms.Starting time: less than 10sHeating resistance: 8.5-9.5ohmInternal resistance: 200-300ohmcolour:Black+whiteMaterial:plasticPackage Contents:1 x Air Fuel Gauge1 x Cable1 x O2 Oxygen Sensor1 x English manualOnly the above package content, other are not included.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +\/- 1-3cm.