138643.79.BL1 #138643 - The Ajax Superior DoubleButton G3 Jeweller in black is a professional wireless device designed to trigger rapid and secure alarms in high-risk facilities, ensuring zero false alarms thanks to its dual buttons requiring simultaneous presses. Jeweller communication ensures a range of up to 1,500 m with advanced encryption, anti-spoofing authentication, constant polling, and protection against interference and jamming. Equipped with a pre-installed CR2032 battery with up to 6 years of battery life, it offers reliable notifications and full control via the Ajax app. The black IP55 enclosure allows for both indoor and outdoor use, with mounting or wearable options for immediate emergency management.
TOTALER AUSVERKAUF ×
CLEARANCE SALE!
Take advantage of our must-see outing offers.
Discover the promo >>
138643.79.BL1 | WIRELESS EMERGENCY BUTTON FOR HIGH-RISK SYSTEMS

The Ajax Superior DoubleButton G3 Jeweller, 138643.79.BL1, black, is a professional wireless device designed to trigger rapid and secure alarms in high-risk environments, ensuring zero false alarms thanks to the double-button mechanism that requires simultaneous pressing to prevent accidental activation. Jeweller communication ensures a range of up to 1,500 m with advanced encryption, anti-spoofing authentication, and constant monitoring of the device status, protecting against interference and jamming attempts. Equipped with a CR2032 battery with up to 6 years of battery life, it offers long-term reliable operation and instant notifications via the Ajax app. The robust and durable IP55 housing makes it ideal for indoor and outdoor use, with the option of mounting or using it as a wearable accessory.
Main specifications:
- Double anti-involuntary activation button for zero false alarms
- Jeweller radio range up to 1,500 m with advanced encryption
- Anti-spoofing protection, interference detection and jamming
- Battery life up to 6 years with pre-installed CR2032 battery
- IP55 resistant housing for indoor and outdoor use
- Complete configuration and management via Ajax app
Further details
Technical data sheet
| 138643.79.BL1 | |
| Communication | Superior Jeweler communication technology Proprietary wireless technology for transmitting commands, alarms, and events. Superior Jeweler is an upgraded version of the Jeweler radio protocol for Superior devices, ensuring compliance with EN 50131 (Grade 3). Key features:
865.0 - 868.0 MHz 868.0 - 868.6 MHz 868.7-869.2 MHz 869.4 - 869.65 MHz Maximum effective radiated power (ERP) up to 25 mW Automatic power control to reduce power consumption and radio interference. Radio signal modulation GFSK Radio communication range Up to 3,500 m Up to 11,450 ft Between the hold-up device and control panel (or range extender) in an open space. The maximum range depends on the hub model. Locate Superior DoubleButton G3 Jeweler in a place with stable Jeweler signal strength (2-3 bars in the Ajax app). Encrypted communication All stored and transmitted data is protected with advanced encryption, ensuring both confidentiality and integrity. Frequency hopping Radio communication uses frequency hopping to prevent interception and jamming. |
| Key features |
Number of buttons |
| Sabotage protection | Protection against spoofing device authentication |
| Power supply | Battery 1 × CR2032 Pre-installed. Calculated battery life up to 6 years Up to 4 years until Low Battery status. Device's operating voltage range 1.8−3.3 V⎓ Device's nominal operating voltage 3 V⎓ Quiescent device's current consumption at nominal voltage 0.54 μA Maximum device's current consumption at nominal voltage 34.8 mA Full battery capacity 235 mAh Low battery voltage 2.3 V⎓ Low battery recovery voltage 2.5 V⎓ End-of-life battery voltage 1.8 V⎓ Device is switched off. End-of-life battery capacity 40 mAh Manufacturer Panasonic |
| Enclosure | Dimensions dimensions 47 × 35 × 16 mm 1.85″ × 1.38″ × 0.63 Weight 17 g 0.60 oz Operating temperature range from −10 °C to +40 °C from 14 °F to 104 °F Operating humidity up to 75% Protection class IP55 |
| Color | Black |
| Complete set | Superior DoubleButton G3 Jeweller CR2032 battery (pre-installed) Quick start guide |
| Warranty | 24 months |



