The Ajax CombiProtect combined wireless sensor is designed to detect human movement and glass breakage in a protected area. The sensor has adjustable sensitivity and ignores pets weighing up to 20 kg and up to 50 cm tall. The sensor's operation principle is based on detecting infrared (IR) radiation from a living being. Every living being, including humans, is a source of IR radiation. As soon as the sensor detects such radiation, it analyzes the mass of the living object, and if it exceeds 20 kg, it sends an alarm signal to the central security alarm unit via radio channel. Thus, the sensor only triggers when human movement is detected. The sensor also does not react to the movement of inanimate objects. If, for example, a jacket falls from a hanger in the room or a draft opens an interior door, the sensor will not trigger. Thanks to a special microphone, the sensor detects and registers specific low-frequency and high-frequency sounds that occur when glass breaks. If glass breaks in the protected area, the sensor picks up these sounds and sends an alarm signal to the central alarm unit via radio channel. Using unique multi-stage analysis, the sensor reacts exclusively to the sound of broken glass, ignoring other loud sounds. In addition, the device has an ultra-modern, highly reliable communication system, allowing it to operate successfully across several floors of a business center or at a distance of up to 2000 m in open terrain from the central alarm unit.

Technical parameters:

Color: White/black
Sensor type: Wireless
Usage: Indoors
Motion detection range: Up to 12 m
Motion and breakage sensitivity: Adjustable, 3 levels (high, medium, low)
Viewing angles (H/V): 88.5°/80°
Recommended installation height: 2.4 m
Pet immunity option: Weight up to 20 kg, height up to 50 cm
Breakage detection range: Up to 9 m
Sensitive element: Pyroelectric sensor (motion), electret microphone (breakage)
Protection against unauthorized casing opening: Tamper
Radio signal power: 20 mW
Communication protocol with central unit: Jeweller (868.0−868.6 MHz)
Max. distance between sensor and central unit: 1200 m (in open space)
Power source: CR123A 3V battery
Battery life: Up to 5 years
Operating temperature range: From 0°С to +50°С
Permissible humidity: Up to 80%