Product Name: Toyota Dual Temperature Display Instrument Input voltage: 12V Measuring temperature range: -20c--+70c Temperature line length: 3 meters outside the car, 1 meter inside the car Installation method: 1. Use a steel ruler or plastic piece to pry off the blank buttons on the original car dashboard. 2. To get electricity, you can connect it to the cigarette lighter, battery, or fuse box. If you connect it to the fuse box, you can buy an extra one to get the electrical appliance, which is simpler and safer. 3. The probe lead in the car can be placed near the driver's accelerator and brake, or a small hole can be drilled on the instrument panel to lead out the probe. The outside temperature probe cable can be placed in the door gap, under the reversing mirror or other suitable places for installation. Suitable models: Corolla 2004---2009 Reiz 2005---2008 Prado 2004---2006 Tundra 2009 Prius 2005---2006 Costa 2013---2016 Senna 2005 Sea Lion 2011 Cool Road Ze 2001 20032007 201 1. The test temperature range is -20C--70C 2. When the temperature is 0C--9.9C, it changes by 0.1C 3. When the temperature is lower than -10C, change by 1C 4. When the temperature is lower than -20C, E will be displayed