The Basic Gen 2 900MHz wireless dry contact sensors can be used to detect contact between two wired contact points. This sensor can be used with an external mechanical switch or a contact plate to alert the user via SMS text and/or email when the contacts touch or a switch is triggered.
Features & Specifications:
* Actual range may vary depending on environment
** Battery life is determined by sensor reporting frequency and other variables
***Hardware cannot withstand negative voltage. Please take care when connecting a power device.