【Welcome Buzzer Monitor】The owners can use the doorbell to be alerted when people enter or leave. Use it to detect visitors through the front or back door. The portable design is easy to ...

Designed for high power laser manufacturers and industrial ... The sensor also features an over-temperature sensor that triggers an LED indicator, audible alarm, and M8 3-connector interlock ...

laser sensors set off alarms at night and cameras linked live to mobile apps keep potential thieves at bay — 24/7. That’s what happens when the fast-flying fowl — which in a bygone era were ...