General Use Siren BS-540 12-24VDC With Volume Adjuster 921540000

Telephone Beacon Siren General Use BS-505 230V with Volume Ajduster 921505000

Electronic telephone light siren with adjustable intensity 105dB, operating voltage 230V. From Olympia Electronics.

The electronic BS-505 telephone beacon is connected to the telephone line in parallel with the telephone set. It produces a loud sound and light during an incoming phone call.

It finds uses in noisy places where it is not possible to hear the usual ringing sound of a common telephone such as factories, construction sites, workshops, cafes, etc.

Characteristics:

• Voltage: 230V
• Height (cm): 9
• Length (cm): 14
• Noise level (dB): 105 dB