The Shock Tilt Sensor FT-Shock-II installation accessory by Compustar is designed for compatibility with car alarms. It features a noise level of 120 dB and comes with a wireless remote for easy operation. The compact dimensions of 5 x 3 x 2 inches and lightweight design of 1.6 ounces make it convenient to install in cars. The warranty for the shock tilt sensor ensures long-lasting performance, making it a reliable choice for enhancing car security.