• 868MHz two-way wireless communication • LED display, show the real status of device • With 16 onboard inputs and 2 outputs, can be applied to connect wired detectors • With two 12v power outputs, can be used to power up external wired detectors • Large space for back up storage battery • Installation methodWall Mounting • Dimension(WxHxD)261*199*86.4mm • Shell materialPlastic • ColorWhite • 975 g (without battery) • 3024g (with battery)