Q&A about the product: 1. What types of cars can be installed in this product? Thissystem is universal and it can be used on almost any 12V car, Butcondition is that the car itself is not has button or knob start engine,And it requires profeional installation,Please install this car alarmwith profeional installation shop, Or make sure that you know how toinstall it. 2. Will my car become unsafe if I install this product? because it will lose its original anti-theft capability Thisproduct has the function of anti-theft, after the correct installation,when the vehicle is locked, it is impoible to use the button to startthe engine in the car,this intelligent ignition system with a smartanti-theft function that exceeds even the car's own anti-theft 3. Will the ignition system malfunction and I won't be able to start the car? Thisproduct uses car-level relays and cables, which are stable and reliablein quality. Therefore, in general, please check the power supply of thecar when the car cannot start. We all products have paed strictquality inspection and Make sure it works well when leaving thefactory. 4. Why is the price so different and what is the difference between different models? Differentmodels have different features and qualities. KLS-LY model is the mostsimple model of remote start. It has no sound and light prompts. Incontrast, the SG-LY model is a bit more comprehensive, it has audibleand light alarms, and comes with 2 remote controls. Building on this,the PKESG-LY model features PKE keyle entry. The UTE-808 model doesnot have PKE keyle entry, but it is more comprehensive and of betterquality. The UTE-1000 has PKE keyle entry, It has more features thanthe UTE-808. In addition, different remote control keys also havedifferent manufacturing costs. 5. How far can you lock/unlock the car? Generally Within 20 meters by the mobile APP; Within 80 meters by remote control. 6. How to start the car? Method1: When the brake is preed, the light of the start button will flash.At this time, pre the button for 1 second to start the engine. If thebutton is preed continuously the engine will continue to start. Method 2: Start the engine by holding the start stop button for more than 5 seconds without preing the brake. 7. How to shut off the car? Method 1: Pre the brake and then pre the start button for more than 1 second to extinguish the engine. Method 2: Hold the start button for more than 5 seconds without applying the brake to extinguish the engine. Model: KLS-LY Features: 1. Lock/unlock the car by remote control 2. Open the trunk by remote control 3. Lock/unlock the car by mobilephone APP 4. Open the trunk by mobilephone APP Specifications: Ambient temperature: -40~+80; atmospheric preure 86~106KPa Relative humidity: 10%~95% Working voltage: DC12V +/- 3V Packing List: 1 x Control box 2 x Remote keys 1 x Install Wiring Harne 1 x Product Manual Model: SG-LY Features: 1. Use mobile app to control car locking/unlocking 2. Use mobile app to control engine start/stop 3. One-key start/stop 4. Remote start/stop 5. Intelligent handbrake detection 6. Smart oil pump start detection 7. Rear box opened remotely (requires the original car's own tail box motor) 8. Remote control car search (horn sounds, direction light flashes to prompt) 9. Remote unlocking / locking 10. Anti-theft alarm function (Illegal driving door, stepping on the foot brake triggers alarm prompt) 11. Motor engine lock function (the vehicle cannot be started in the car after the door is locked) 12.Automatically lock the door by stepping on the foot brake afterstarting, and automatically unlock when the flame is turned off 13.Alarm notification for the original car horn (requires that theoriginal car has a control line, and an alarm horn can be added) 14. Power-off memory 15. Emergency reset function 16. The remote control is turned on for 10 minutes and the flame is turned off regularly Controller Ambient temperature: -40~+ 80; atmospheric preure 86~106KPa Relative humidity: 10%~95% Working voltage: DC12V +/- 3V Static current: Output currentACC/ON/START=30A;Turn signal=5A High frequency: 433.92MHZ Remote keys: Working voltage:6V Static current: Battery model: CR-2016 High frequency: 433.92MHZ Packing List: 2 x Remote control keys 1 x Ignition system controller 2 x Install wiring harne 1 x Start stop button 1 x Product manual Model: PKESG-LY Features: 1. APP lock/unlock/open trunk 2. APP remote start/stop engine 3. Engine lock (If the key is out of range, the engine cannot be started) 4. Push one button start/stop engine 5. Warm up for 3 seconds at starting (for diesel cars) 6. Smart hand brake detection 7. Smart oil pump start detection 8. Remote open trunk by key (Requires the car itself to have a controllable circuit).