Features: *Auto Timer allows the vehicle to idle for a preset amount of time after the ignition key has been removed *Can also be used to warm/cool the inside of the car *Displays critical data such as O2 sensor voltage and Battery Voltage *To prevent potential theft while running, the handbrake safety feature shuts off the vehicle when the handbrake is released without the ignition key *O2 sensor voltage A/F value can be displayed *Displays A/F ratio *Automatic countdown feature Fitment: Universal fit for all vehicles with a 12 volt switched power source Features: -- Color: black -- LED Color: Blue -- O2 sensor voltage A/F value can be displayed. -- Displays A/F ratio as RICH or LEAN via 2 colors LED. -- 16 Way adjustment of Count down timing from 0-10 minutes. -- Automatic countdown feature in order to ensure the most optimum countdown setting from the widest array of vehicles the user can choose from 144 different setings. -- First Timer to utilize O2 sensor voltage when calculating count down time compared to timers that only use vehicle speed and RPM,this Timer can set the most accurate after idling time possible. -- This Turbo Device is equipped with a parking Brake safety function which will keep the car from moving forward when idling in the count down function. -- Installation instruction is include,please read carefully when you install. Package included: 1 x Control Unit 1 x Relay Unit 1 x User's Manual 3 x Zip Tie 2 x Double Sided Tape Note:The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.