Feature 1High useful turbo timer, helps to protect your turbo by cooling down after driving 2Greatly improving the combustion efficiency of the engine, save a certain amount of fuel consumption 3The voltage, oxygen content (O2) and air fuel ratio (A/F) can be displayed 4This turbo timer has the unique feature of RPM monitor to automatically calculate idling time 5This turbo timer device is equipped with a parking brake safety function which will keep the car from moving forward when idling in the count down functionFeatures: High useful turbo timer, helps to protect your turbo by cooling down after driving. Greatly improving the combustion efficiency of the engine, save a certain amount of fuel consumption. The voltage, oxygen content (O2) and air fuel ratio (A/F) can be displayed. This turbo timer has the unique feature of RPM monitor to automatically calculate idling times Makes the high speed rotating impeller slowed down to the normal speed before the engine stalled. This turbo timer device is equipped with a parking brake safety function which will keep the car from moving forward when idling in the count down function. Compact size and light weight, comes complete with English instruction manual, convenient and space-saving for installation. Universal fit for all vehicles with a 12 volt switched power source. Specifications: Condition: 100% brand new Material: plastic, electronic components Shell Color: black LED Light Color: red / blue (optional) Voltage: DC 12V Black Display Case Size: 100 * 18 * 14mm / 3.9 * 0.7 * 0.6in LCD Display Size: 46 * 12mm / 1.8 * 0.5in Display Cable Length: approx.95cm / Black Control Unit Case Size: 62 * 50 * 25mm / 37.4in Timer Functions: - Manual Mode (0-10 Minutes) - Memory Mode #1 (1 touch, 1 Minute Setting) - Memory Mode #2 (1 touch, 3 Minute Setting) Package Weight: approx.200g Fitment: universal fit for all vehicles with a 12 volt switched power source Package List: 1 * Turbo Timer Device 1 * Relay Unit 2 * Mounting Pad 3 * Cable Ties Notes: 1. Please read this manual carefully before installing, professional installation is highly recommended. 2. Please allow 0.2 inch error due to manual measurement, thanks for your understanding.