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• With and Without Wires : BT Heavy Duty Telephone Bell

BT Heavy Duty Telephone Bell

This Bell 80D from BT, is suitable for external use in noisy environments where loud ringing is required. Can be wired into standard BT socket. Telephone lines usually have a REN of 4 ~ they can operate up to four telephone products (e.g., phones, fax, answering machine) each with a REN of 1. This product has a REN of 1. Please note we also have REN Boosters available if your REN exceeds 4.

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With and Without Wires - BT Heavy Duty Telephone Bell
Click here to find out more about the BT Heavy Duty Telephone Bell