Wheelock is a fire alarm and general signaling products manufacturer owned by Eaton Corporation.

In late 1984, Wheelock redesigned the horn's grilles, making them vandal resistant; and shortly thereafter, pigtail leads were discontinued.

This product line became extremely popular among third-party security companies, such as Honeywell, Ademco, and Cerberus Pyrotronics (now part of Siemens AG).

In 1994, Wheelock discontinued this series, because their low-intensity strobes did not meet the new light distribution requirements of the ADA.

Cooper Wheelock also produces several bells as well as speakers, synchronization modules, booster power supplies,[2] chimes and voice evacuation products.

However, many fire alarm control panels are compatible with Cooper Wheelock's line of notification appliances and other products.

Wheelock also produces notification devices for Siemens Building Technologies for its fire alarm systems[4] such as the Cerberus Pro Modular.

The NS is similar to the AS, except the design is much less boxy, and the piezoelectric speaker disc is slightly visible through the grill which also has an updated horn.

They also introduced the RSSP, a retrofit plate which allows the easy addition of a strobe to older electromechanical horns and bells.

The ZNS and ZRS features a "snap-on" mounting system, which allows the base to be installed before the horn is attached.

[9] In 2020, Wheelock announced a new family of notification appliances, named "Eluxa",[10] which shared a similar design from the Exceder LED and LED3 series, however, the notification appliances had their design altered to accommodate a larger LED module, which was engineered to offer strobe intensity ratings of 15, 30, 75, 110, 135, and 185 candela for the wall models, and 15, 30, 75, 110, 150 and 177 for the ceiling mount models, as well as notification appliances being re-engineered to include a mounting plate, like the Exceder Xenon and ZNS/ZRS (ZR/ZH for Siemens).