Part of the SiX® family of home security system devices, this mini wireless door or window contact provides reliable security for your customer's smart home. Easy installation and remote configuration that reduces the necessity for on-site visits makes this a great product choice for professionals. The System Health Check feature allows monitoring of device signal strength, sensor settings, temperature and battery life remotely via AlarmNet 360®. Reduce truck rolls with user-replaceable batteries and the ability to remotely adjust sensor parameters and download software updates. Power Requirements - 3 volt CR2 Lithium Battery, Qty 1 (Panasonic CR2, Duracell CR2, Energizer CR2 or Evergreen CR2 (Qty 1)