Protect yourself from the growing threat of vehicle content and component theft, with the Viper DS4SUV Security Upgrade. Featuring the reliable protection of the Viper digital shock, tilt, & temperature sensor. Shock Sensor: Two stage sensing offers a Warn Away response on light impact and instantly triggers the alarm on hard impact Temperature Sensor: Temperature sensor can be set to automatically Remote Start your vehicle when outside temperatures are too cold (warm up vehicle) or too hot (cool down interior) Tilt Sensor: Protects your car from theft by detecting when the vehicle is being raised by a tow truck or lifted using a jack, in an attempt to remove the wheels or tow the vehicle Digital Shock, Tilt, & Temperature Sensor Features: D2D 2.0 for Ds4/s4+ systems Fully adjustable Shock/Tilt combo sensor Warn away Full trigger Tilt angle adjustable from 1-3 degrees 15 level shock adjustments Temperature Sensor for automatic Remote Start when outside temperature is too hot/cold Mini-Neo 6 Tone Siren Features: Mini Siren is 2-5dB louder than most conventional sirens Soft Chip Siren - cut black loop to restore confirmation chirps to full volume 6 or 1 Tone Selectable-Cut Black/White loop to delete tones 2-6