VISION ZM1601US-5 Z-wave PLUS Wireless Siren & Strobe Alarm, Battery Type, Gen5 BEFORE YOU BUY : make sure your z-wave controller supports this 5 gen device.( Simple systems like WINK does NOT ! ) ANY alarm system users : your provider does not allow to use some devices purchased off their dealers, especially door sensors, motion sensors, multisensors, sirens. Most likely you won't be able to pair it with your system. Loud audible alarm&gt;105dB@1 meter *LED strobe lighting *Low battery detection.100ft line of sight *LED Status Indicator Working Voltage: 6V ( 4 x AAA batteries - included ) New, improved Z-Wave Plus chip. Z-Wave Plus Certification Number: ZC10-15050013. Keep in mind that returning item as defective if your system does not support it is a policy violation and may affect your account standing. All returns are checked by tech.WINK users : do not buy anything not listed on Wink compatibility chart. Wink supports very limited command classes and does not work with most new z-wave devices