Zooz Z-Wave Plus S2 Motion Sensor ZSE18 with Magnetic Mount, Works with Vera and SmartThings
Brand: ZOOZ

NOTE: This sensor is supported by open Z-Wave systems ONLY. It will not work with Wink or Z-Wave alarm panels.
Please contact seller if you're not sure your hub is compatible.

SPECIFICATIONS:
Model Number: ZSE18
Z-Wave Signal Frequency: 908.42 MHz
Power: 1 CR123A battery (included) / Micro USB cable and power adapter (NOT included)
Z-Wave Range: Up to 100 feet in open space
Operating Temperature: 32-104° F
Installation and Use: Indoor only
Will it work with Alexa?
Amazon Echo is not a Z-Wave controller so you will need a compatible Z-Wave hub to get readings from this sensor from Alexa.
Alexa-compatible Z-Wave hubs include:
Fibaro Home Center Lite
SmartThings
VeraPlus

EXTRA FEATURES: Adjustable motion sensitivity and retrigger time. Built-in Z-Wave range test tool for easier network troubleshooting. Vibration reports on SmartThings and other selected gateways.
2 POWER SOURCES: Runs on a single battery for up to a year (depending on traffic and settings) OR on micro USB cable (NOT INCLUDED). Acts as signal extender when connected to USB.
FLEXIBLE DESIGN: Extremely small and light, the sensor sits in a perfectly shaped magnetic mounting base for precise and firm positioning.
CERTIFIED SECURE: Uses the latest S2 Z-Wave protocol and AES-128 signal encryption. Z-Wave Plus chip for longer range and increased battery life.