DISCONTINUED INDUSTRIAL TELEPHONE BELL RINGER TEC 49

A weather-resistant bell loud enough to be heard in the noisiest factory or over extended distances outdoors, but has an adjustable loudness control that makes it ideal for a quiet patio or home. A real necessity for those with a hearing impairment. This ringer can work in conjunction with your present phone ringer or independently, if so desired. Installation is simple, just use a 4-conductor extension cable (not supplied) with 4 contact modular plugs at both ends. SPECIFICATIONS: Sound Pressure Level: +95dB (excitation 20 Hz., 60 V, rms) Minimum Operating Voltage: 40 Volts rms (20Hz) rated; average less than 40 volts. Ringer Impedance: more than 8K ohms at 20 Hz.