Automatic Electric Bell 220v School or Factory Bell Controller Ring Timer 2 3 4 6 inch Alarm Bell Apartment Call Doorbell

The electric bell is an inner strike type of no spark.

1. Suitable for g sound signal and alarm at factories, schools, railways and indoor public ps.

2. Stainle steel material for better rust prevention and service life.

3. With double s inside, it is ble and stable.

4. There are three round holes on the cover for easy installation of the bell on the wall.

Worg Voltage:

AC 220V (±10% )

Bell Diameter:

①55mm(2inch) ②75mm(3inch) ③100mm(4inch) ④150mm(6inch)

Material:

Stainle Steel

Temperature:

-40℃ ~ +40℃

1, can directly control the bell (25A resistive)

2, the daily vel error and bell error is le than 0.5 seconds

3, can be set to ring 28 times every day

4, LCD display, easy to install

5, ringing time can be days or week cycle

6, playing bell delay time 1 second to 59 seconds adjustable

7, ringing interval 1minute ~ 168 hours adjustable

8, with a manual bell function