Dear Customer, this is 1pc EASYGUARD EC002 PKE Alarm with Push Engine Start & Remote Engine Start Function. The ec002-ns difference: B00MBKVWJU: ec002 has a shock sensor, but this item will fit 95% DC12V gas cars on the market. If your car is a diesel car with a starting time of 3 seconds or more, you can turn it on the dashboard first beforehand or start the car or warm up the spark plug to add an extra timer delay switch. Push button color description: Turn on ACC or on when unarmed: Blue color car started: Green color IMPORTANT: We do not offer installation services. Professional car alarm installer is required. Wiring diagrams are available to confirm upon request. You need an extra bypass module (like ASIN: B00MEHBVIC) if you have immobilizer in your factory OEM key fob. You will need to unlock/release/delete the steering lock while installing this item. Main Features: 1. Push button start/stop 2. PKE-passive keyless entry 3. Manual arm/lock & unlock/unlock 4. Mute/audible alarm 5. Remote trunk release (extra trunk release solenoid kit like ASIN: B00N4RP8VM may require) 6. Panic mode 7. /Stop 9. High 12. Emergency override 13. Close the automatic window (optional, the module close to the window may be required, 4 close to the door window ASIN: B00N3RKA8E) 14. Password modification and reset 15. Parameter extension settings 16. Programming Method: Sometimes you like : Leather Case for Key Fob ASIN: B077HD346L2 Door Window ASIN: B00N4S92SQ5 Door Window ASIN: B00NTOL03KSPST Relay ASIN: B0769X5K3N