This Bell 50E from BT, is suitable for internal use in noisy environments where a loud ring is required. Mains power not required. Connects to a standard BT socket.

This is a loud indoor bell ringer suitable for applications such as:

• Warehouses

• large offices

• Garages
• Shop floors
• Any other indoor location where a loud bell is needed

You will need a spare incoming BT socket or a two-way adapter to install this product. Installs in seconds. 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.