620D
Door Open Alert
- Specifications
- Door Open Alert
- ● Detecting door open activate alert sound
- ● Bypass function --- for extending delay time
- ● Power On/Off switch
- ● Built-in 100dB alert sound
- ● 3 button cell batteries operation (included)
- ● Water resistance for external additional bypass button
- ● Compatible external additional magnetic sensor for screen door
- ● For protect the child/old people leaving home