Description
Ajax AJ-DOORPROTECT-G3-W - Professional magnetic detector for Ajax alarm systems, designed to provide advanced protection for doors, windows and sensitive entry points against intrusion attempts.
The Ajax DoorProtect G3 is a magnetic contact that integrates multiple technologies in a single device, combining opening detection, a vibration (shock) sensor, a tilt sensor and protection against magnetic masking. This combination provides superior security against manipulation, impacts or sabotage.
With Grade 3 certification, this detector is especially suited to high-security professional installations such as shops, offices, industrial units or homes with advanced protection needs.
Its white design blends discreetly into any environment and adapts easily to all types of doors and windows. It also incorporates high-sensitivity reed relays, which allow the magnet to be installed in different positions for a more flexible, faster and more efficient installation.
The Ajax DoorProtect G3 stands out for its reliability, precision and full compatibility with the Ajax ecosystem, making it an ideal solution for reinforcing perimeter security in professional alarm systems.
What are the key features of the Ajax DoorProtect G3 Grade 3 magnetic detector for maximum security?
Ajax Superior
Opening detector with shock, tilt and magnetic masking sensors
NFA2P certification
Grade 3 certified
Two-way
Wireless 868 MHz Superior Jeweller
Internal antenna, open-air range 3000 m
Anti-opening tamper
LED indicator for open/close detection
Supports wired sensor input
Spacers for installation on metal surfaces
Powered by 1 Panasonic CR123A 3.0 V battery (estimated life 4 years)
Indoor use
Includes bracket with fixing screw
White
What are the technical specifications of the Ajax DoorProtect G3 magnetic contact?
Brand: Ajax
Range: Superior
NFA2P certification: Available
Security grade: Grade 3
Communication protocols: 868 MHz Superior Jeweller and Wings
Transmission distance: ≤ 3000 m in open space
Compatibility with control panels and range extenders: Check compatibility under 'Downloads -- Manuals -- Ajax device and control panel compatibility table'
Firmware update: Available. Remote OTA (over-the-air) updates
General features
Sensors:
2 reed relays: opening and closing
1 accelerometer: tilt and shock
1 magnetic masking sensor
Shock sensor sensitivity: 3 levels
Shock detection range:
Framed glass window:
1.2 m (high sensitivity level)
1 m (low sensitivity level)
Wooden panel:
1.2 m (high sensitivity level)
1 m (low sensitivity level).
Concrete slab:
0.75 m (high sensitivity level)
0.5 m (low sensitivity level)
The smoother and cleaner the detection surface, the greater the detection range.
Tilt sensor activation threshold: From 5° to 25°
Input for third-party wired detector: Wired detectors with normally closed (NC) contact type and the additional Roller Shutter mode
Chime mode: When the system is disarmed, the siren emits a special sound to notify that opening detectors have been triggered
Tamper protection
Anti-masking: Available. The device detects an attempt to mask the detector's main magnet with a fraudulent magnet
Tamper protection:
Tamper
Fixing screw
Power supply
Power supply: 1 Panasonic CR123A 3.0 V battery
Battery life: Up to 4 years




