Wireless opening sensor Ajax DoorProtect
The Ajax DoorProtect wireless opening sensor works based on two-way radio communication, device forgery protection and information encryption. Also, the DoorProtect opening detector has a communication system that allows it to work within several floors of a building or at a distance of up to 1200 m to the central alarm panel, provided there are no obstacles. The Ajax DoorProtect opening sensor protects even windows that are open for ventilation. The accelerometer will detect shock, tilt or vibration and alarm the control panel.
Principle of operation
Features
Overview:
DoorProtect is a wireless door and window opening detector designed for indoor use. It is capable of detecting more than 2 millions openings. DoorProtect has a socket for connecting an external detector.
DoorProtect operates within the Ajax system, connecting via the protected Jeweller radio protocol. Communication range is up to 1,200 m in the line of sight. Using the uartBridge or ocBridge Plus integration modules, DoorProtect can be used as part of third party security systems.
The detector is set up via Ajax apps for iOS, Android, macOS and Windows. The app notifies user of all events through push notifications, SMS and calls (if activated).
The Ajax system is self-sustaining, but the user can connect it to the central monitoring station of a private security company.
Key Features:
Reliable opening detection
- The reed switch with a resource of 2,000,000 openings
- Protected against reed switch chattering
- Equipped with two magnets: small and big
Additional features
- Additional NC input for connecting a third-party detector
- Chime feature: Ajax sirens make a special sound when the door is opening
Jeweller
communication technology
- Up to 1,200 m of radio communication in an open space
- Encryption and device authentication to prevent spoofing
- Regular polling to display current device statuses
Flawless autonomy
- Up to 7 years of operation
- Pre-installed battery
- Low battery warning
Quick installation and setup
- Pairing with a hub via QR code
- Remote control and configuration in the app
- Effortless installation and maintenance
Specifications
Communication
Jeweller communication technology
Proprietary wireless communication technology to transmit commands, alarms, and events.
Key features:
- Two-way communication.
- Advanced sabotage protection.
- Block encryption featuring a dynamic key.
- Instant notifications.
- Remote configuration in the Ajax apps.
Frequency bands
866.0–866.5 MHz
868.0–868.6 MHz
868.7–869.2 MHz
905.0–926.5 MHz*
915.85–926.5 MHz
921.0–922.0 MHz
* Certified according to UL/ULC standards.
Depends on the sales region.
Maximum effective radiated power (ERP)
up to 20 mW
Automatic power control to reduce power consumption and noise interference.
Radio signal modulation
GFSK
Radio signal range
up to 3,900 ft
Between detector and control panel (or range extender) in an open space.
Encrypted communication
All the data stored and transmitted are protected by block encryption with a dynamic key.
Frequency hopping
Radio communication uses frequency hopping to prevent interception and jamming.
Detection
Sensitive element
1 reed switch
Magnets
small and big one come in the set
The small magnet operates at a distance of up to 0.4″ from the detector, and the big magnet — up to 0.8″.
Protection against reed switch chattering
The detector ignores vibrations lasting up to 0.15 s.
Input to connect an additional detector
Wired detector with the normally closed (NC) contact type.
Chime
When the system is disarmed, the siren makes a special sound to notify that the opening detectors are triggered.
Recommendations
Do not install the detector using both magnets at the same time. The detector recognizes only one magnet on one side of the detector.
Attach the magnet to the moving part of the door (window) to the right of the detector. The side to which the magnet should be attached is marked with an arrow on the detector’s enclosure.
The device is designed for indoor use only.
Sabotage protection
Tamper alarm
Notifications on attempts to detach the detector from the surface or remove it from the mounting panel.
Protection against spoofing
device authentication
Communication loss detection
after 36 s
Depends on the Jeweller or Jeweller/Fibra settings.
Power supply
Battery
1 × CR123A
Pre-installed.
Type
type C
Calculated battery life
up to 7 years
Device’s nominal operating voltage
3 V⎓
Quiescent device’s current consumption at nominal voltage
17.5 μA
Maximum device’s current consumption at nominal voltage
21.4 mA
Full battery capacity
1,600 mAh
Low battery voltage
2.5 V⎓
Low battery recovery voltage
2.7 V⎓
End-of-life battery voltage
2.1 V⎓
Device is switched off.
End-of-life battery capacity
300 mAh
Manufacturer
Huiderui
UL listed.
Enclosure
Detector dimensions
3.54″ × 0.79″ × 0.79″
Dimensions of the big magnet
3.54″ × 0.79″ × 0.79″
Dimensions of the small magnet
2.16″ × 0.43″ × 0.24″
Detector weight
1.02 oz
Operating temperature range
from 14 °F to 104 °F
Temperature range from 32 °F (0 °C) to 120 °F (+49 °C) is certified according to UL/ULC standards.
Operating humidity
up to 75%
Humidity of up to 85% is certified according to UL/ULC standards.
Protection class
IP50
Colors
Black
White
Complete set
DoorProtect Jeweller
SmartBracket mounting panel
CR123A battery (pre-installed)
Big magnet
Small magnet
Outside-mounted terminal clamp
Installation kit
Quick start guide
Datasheet
