DoubleButton (White) | Wireless Emergency & Hold-Up Button

Product Overview

The 28272.79.WH3 (Ajax DoubleButton - White) is an advanced wireless hold-up and emergency panic button designed to prevent false alarms while providing reliable, immediate threat signaling. Engineered for high-security commercial facilities, retail counters, financial institutions, and residential premises, it requires two separate keys to be pressed simultaneously to trigger an alarm state.

Operating on Jeweller encrypted two-way radio technology, the DoubleButton communicates with the Ajax Hub over distances of up to 1,300 meters in open space. Featuring IP55 dust and water resistance, it supports versatile mounting options—either worn as a portable panic device, attached to a lanyard, or fixed under desks and counters using the optional Ajax Holder bracket.

Key System Features & Functionality

• Dual-Button False Alarm Prevention: Requires simultaneous pressing of both keys to send an alarm signal, eliminating accidental triggers from pocket pressure or dropping.

• Jeweller Wireless Encrypted Protocol: Secure two-way communication with the Ajax Hub up to 1,300 meters with frequency-hopping and jam-detection algorithms.

• IP55 Weatherproof Casing: Enclosed in a dust-tight and splash-resistant housing, enabling safe outdoor, bathroom, or industrial usage.

• Smart Home & Automation Scenarios: Triggers emergency alarm events while simultaneously running automation scenarios (e.g., locking electric doors, flashing strobe lights, or shutting off water/gas valves).

• Extended Battery Autonomy: Pre-installed CR2032 battery provides up to 5 years of operation under standard usage conditions.