Series MT & MT Strobe Multitone Electronic Appliances are ideal for designs that require a choice of 8 selectable alerting sounds for various ambient and wall conditions and 2 selectable sound output levels.

 

The Wheelock MT Series Multi-candela Electronic Appliances are audible and visual alarm-indicating devices engineered to comply with temporal pattern specifications without requiring an additional code mechanism. They have a selection of eight tone patterns, two sound output levels, and four light intensities (15 cd, 30 cd, 75 cd, or 110 cd). The temporal (Code-3) horn and tone patterns meet ANSI/NFPA/ISO requirements for standard emergency evacuation signaling. The extended temperature range satisfies all severe-weather outdoor applications. The option to silence the audible signal allows emergency personnel to communicate while maintaining the visual alarm condition, a requirement in some jurisdictions.