The line powered high output unit has been designed for installation in large offices or factory areas with high ambient noise levels, and replaces the traditional mains voltage bell. The unit is rated to IP66 and is therefore capable of operating in adverse conditions. The Bedlam Loud Tone Caller is designed to replace the traditional mains powered bell and is powered by the PABX and PSTN line voltage (60-100 volts AC). A variable output (85-105dBA) is possible by means of a potentiometer located within the unit.

The Bedlam Loud Tone Caller – for interior and exterior use, up to 105dBA output, requires cabling to PST system. Measures approx. 120mm x 92mm x 114mm (including cable entry gland), weight 420 grams. Requires 4 No. 10 round-head, rust-resistant screws. Cable entry gland may be removed to provide 20mm conduit entry.

The volume control of the Bedlam Loud Tone Caller is normally supplied set to maximum (clockwise) and may be adjusted on installation if customer or situation require otherwise. If the volume control of the Bedlam Loud Tone Caller is left set to maximum volume it must not be mounted within 3 Meters of persons using the area. Access to the volume adjuster is via the four body fixing screws. The adjuster is in the base of the warbler unit.

The Bedlam Loud Tone Caller emits a loud piercing tone and must be fitted where it cannot cause acoustic shock. Cabling should be disconnected at distant end before approaching a Mayhem  tone caller on installation or maintenance visits.