
Both protocols support encryption and authentication to prevent forgery.
Connection with devices is monitored via a system of hub–detector polls. Their
statuses are displayed in real-time in the Ajax apps. The polling frequency is set
by a user or a PRO with system configuration rights.
The photo delivery time to Ajax apps depends on the selected resolution,
detector connection to the radio signal range extender, Wings signal strength,
and the Internet connection speed. The alarm messages are delivered
immediately.
Photo resolution
Delivery time*
When connected
directly to the hub**
When connected to the
hub using ReX 2 (ReX 2
transmits photos via
Wings)***
When connected to the
hub using ReX 2 (ReX
2 transmits photos via
Ethernet)****
160 × 120 pixels up to 6 seconds up to 8 seconds up to 6 seconds
320 × 240 pixels
(default) up to 9 seconds up to 18 seconds up to 10 seconds
640 × 480 pixels up to 17 seconds up to 31 seconds up to 16 seconds
*The detector needs up to 3 seconds to start the Photo on Demand shooting.
** The delivery time of one photo when the signal strength between the hub andthe
detector is 2–3 bars and the hub is connected via Ethernet, Wi-Fi or 4G.
*** Values were calculated with a signal strength of 3 bars between ReX 2 and the detector
or between the hub and ReX 2. The hub works via Ethernet, Wi-Fi or 4G.
**** Values were calculated with a signal strength of 3 bars between ReX 2 and the
detector. The hub is connected via Ethernet, Wi-Fi or 4G.
The detector perceives people and other objects as heat spots. The device
monitors these heat spots and, if they move, registers an alarm. Under ideal
conditions, the human body temperature (36.6°C on average) differs from the
ambient temperature, and their contrast allows the motion detector to accurately
record the movement of a person.