Wheelock TB-593 Loud Bell Phone Ringer Line Powered 55-130 V, 20-30 Hz

Wheelock's TB-583 loud bell phone ringers connects to any standard phone line with standard RJ-11 phone jack.  The Telbell is an attention-getting telephone alerts designed for use in noisy locations and/or for medium to large area coverage.  Typical applications would be factories, repair shops, printing shops, loading platforms, and warehouses. TelBells utilize a durable, high torque, permanent magnet motor-driven mechanism and 6" low frequency aluminum bell shell to produce a higher sound output and lower resonant frequency than conventional mechanical bells. TelBells include an extremely adjustable, tamper-resistant volume control.