Electric warning device with ringing sound. When someone approaches or passes by, the optical induction components in the unit will sense an optical change and send out a pleasant ringtone to indicate that someone is coming.

✔️ 8 Types of sounds.
✔️ Working distance of the sensor: 6m.
✔️ Volume: 85 dB.
✔️ Wireless, no hassle of cables, easy installation.
✔️ Works with 3AA batteries.

Category: TV, Video, Photo and Multimedia / Electronics