Hign-concerned Chemical:NonePlacement on Vehicle:FrontCountry/Region of Manufacture:ChinaInterchange Part Number:Air Fuel RatioSpecial Features:Gauge HolderItem Weight:300gItem Height:52mmItem Width:52mmItem Length:52mmManufacturer Part Number:Triple Gauge PodBrand Name:ZMFJHOrigin:Mainland ChinaMaterial:Plastic ShellOEM NO.:working on 12V2" 52mm Car Truck Digital Air Fuel Ratio Monitor Elec Gauge Blue/Red LED Display With Narrowband O2 Oxygen Sensor Gauge Pod Specification: It is suitable for 12 volt gasoline vehiclesadvanced car gauge , digital graphics dual display, red and blue can be converted. connection: Connection : The white line is at heater ab Black line signal line C, gray line signal ground D The green wire of the instrument is connected with the black wire of the sensor. The gray line is connected to the negative pole of the battery. One white wire connect with the car shell or battery negative pole. Another white wire connect to the ACC line of ignition switch The white line is the heater and does not distinguish between positive and negative electrodes About the air fuel gauge, please see the installation instructions. Feature: OEM:0258006028 Working Voltage: DC12V Signal Line Voltage: 0-1V Spiral: M18*1.5 Use Wrench: 22mm Output Voltage: Maximum value 900mv/ minimum value 50mv Response time: (600mV-300mV) 100ms Response time: (300mV -600mV) 100ms Starting time: 10s Heating resistance: 8.5~9.5 Internal resistance: 200~300 Package: 1 x Air Fuel Ratio Gauge or 1xgauge +1x sensor or 1xgauge cup