1. Unique design, convenient to use. Made of fireproof and environmental ABS material. 2. Perfectly suitable for some models of Toyota cars, directly installed in the reserved switch hole. 3. Two temperature sensors can display the temperature inside and outside the car at the same time. Operating voltage: 12V Temperature measurement range: -20-70 Temperature sensor wire length: 295cm/95cm Fuse: F4AL250V Production according to 1:1 ratio of the car interface Installation method: 1. Use a steel ruler or plastic sheet to pry off the blank buttons on the dashboard of the car 2. To get electricity, you can connect to the cigarette lighter, battery, or fuse box. If you connect to the fuse box, you can buy one more electrical appliance, which is simpler and safer 3. The probe lead in the car can be placed near the driver's accelerator brake, or a small hole can be drilled on the dashboard to lead out the probe. The temperature probe wire outside the car can be placed in the door seam, under