Features:Small size, compact structure. Plug and never unplugStable wireless connectionNo wires or batteries Supports all OBDII protocols:Measure the fuel consumption.Display real-time operating performance of the car, such as momentum,vehicle speed, oil pressure, coolant temperature, engine load, intake manifold pressure, throttle position, the values of oxygen sensors, air intake temperature, and more.Turn off the MIL (signal Check Engine).Download data to external media in a variety of formats for later printing.Record various parameters, display graphics in real time, and more.Protocols Support:0.Automatic1.SAE J1850 PWM(41.6Kbaud)2.SAE J1850 VPW(10.4Kbaud)3.for ISO9141-2(5 baud init,10.4Kbaud)4.for ISO14230-4 KWP(5 baud init,10.4 Kbaud)5.for ISO14230-4 KWP(fast init,10.4 Kbaud)6.for ISO15765-4 CAN(11bit ID,500 Kbaud)7.for ISO15765-4 CAN(29bit ID,500 Kbaud)8.for ISO15765-4 CAN(11bit ID,250 Kbaud)9.for ISO15765-4 CAN(29bit ID,250 Kbaud)11.KWP2000A.SAE J1939 CAN(29bit ID,250*Kbaud)B.USER1 CAN(11*bit ID,125*Kbaud)C.USER2 CAN(11*bit ID,50*kbaud)Specifications:: KonnweiModel: KW903Material: plastic & siliconeColor: Black & Red, BlackSize: 49*22*35mm(L*W*H)Compatability: OBD2Supply voltage(VDD):12VWork temperature range: -20 ~ +70 Storage temperature range:-40 ~ +125 RF sensitivity(Basic Rate): -85dbModulation Mode: GFSKFrequency Range: 2402 ~ 2480MHZTransmission Range: 10MBluetooth Profile: SPPUART Params: 38400,8,n,1Universal fit for iOS and for AndroidPackage Included:1 x KW903 ODB2 Car Scanner WiFi1 x CD 1 x Manual