ESP Fort Vibration Sensor for Smart Home Alarm System - ECSPVS Protect your fortress with the all new ESP Fort Smart Home WiFi Security System. Seamlessly link a wide range of smart home security lights, cameras, doorbells and motion sensors to keep tabs on all corners of your house, all through an easy-to-use app on your mobile phone! ESP are pioneers in home security solutions in commercial and domestic settings, so their reputation can be trusted, giving you the peace of mind at night or when you leave the house for a holiday. Get instant updates on the status of your system directly to your mobile phone and access live camera footage, all without the hassle of monthly fees and third party apps. This vibration sensor detects vibrations from 300Hz to 3KHz when placed on a flat surface and transmits a radio frequency signal to the Smart Alarm Hub (sold separately) to sound the alarm when intruders come knocking (or banging). It is easy to install using the provided mounting screws & wall plugs, simply remove the battery strip, pair the device and you\'re good to go! Key Features Smart Alarm Vibration Sensor Battery Powered (Supplied) Low Power Indication 80 Meter Open Field RF Transmission (433Mhz) Requires Smart Alarm Hub (ECSPHB) Dimensions 60mm x 39mm x 17mm Sensitivity 300Hz - 3 KHz Weight 30g Warranty 1 Year