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.