Extra Plug-in Receiver for HTZSAFE Wireless Alarms- Up to 32 Zones and 35 Optional Melodies- 4 Adjustable Volume Levels,Black

Love my wireless alert system.........functional, ease to set up, lots of alerts to choose from. Accurate, loud sound, adjustable volume, it's been 2 years and the alert system is still working like a charm.

Buen sonido y fácil configuración, hasta el momento los sensores han soportado lluvias, sol y viento

We looooove these ! BOught two. Product is exactly as described and provides clear easy instructions. Our house sits on a hill and driveway is 100 yards. We placed device 50 yards from house and it picks up the cars just fine. Sometimes the deer or a cat will cause the sensor to chime, but so what — works great. It will NOT pickup cars driving down the street, so don’t let that worry you.

Love these Drive Way Alarms. No one drives up unannounced. These alarms work well and gives you the opportunity to decide to accept a visitor or not. We have several of these through out the house.

Sensor picks up well. The also camouflage good. The notification sound is loud and we'll heard