 
The AJAX Hub 2 is the heart of your security system. It connects and manages all your devices for complete protection. Designed for indoor use, it detects intrusions, fire, and flooding. It can also automate daily routines for smarter security.
With Ethernet and dual SIM (2G/3G/4G LTE) connectivity, the Hub 2 stays online at all times. You’ll always get fast, reliable alerts through the Ajax Cloud.
Device capacity & users
Supports up to 100 wireless devices (e.g. sensors, sirens)
Can integrate up to 25 IP cameras or DVRs via RTSP
Up to 50 users can access/control the system
Automation & structure
Up to 32 automation scenarios (e.g. responses, scheduling)
Supports 9 security groups and 50 rooms
Wireless & communication
Uses Jeweller protocol for commands/events (two-way, encrypted)
Uses Wings protocol for transmitting photos from detectors
Radio range (open space): up to 6,500 ft for Jeweller; up to 5,500 ft for Wings
Frequency hopping + automatic power control for reliability & noise reduction
Internet & connectivity
Three channels: Ethernet + two SIM cards (2G/3G/4G LTE)
Automatically switches between Ethernet, SIMs, and cellular technologies as needed
Photo verification
Sends photos on alarm, schedule, by scenario, or on demand
Delivery time: up to 9 seconds (default)
Resolution: up to 640×480 px, 1–5 images per event
Power & backup
Main power: 110–240 V AC, up to 10 W
Built-in Li-ion backup battery (3 Ah) — supports about 15 hours of operation on backup
Alternative power input options: 6 V DC or 12–24 V DC via external PSU (sold separately)
Physical & environment
Dimensions: 163 × 163 × 36 mm (~6.4″ × 6.4″ × 1.4″)
Weight: ~ 12.77 oz
Operating temperature: 14 °F to 104 °F (–10 °C to +40 °C)
Humidity: up to 75% (non-condensing)
Protection rating: IP20 (indoor use)
Other features
Tamper alarm protection (if device is removed or detached)
Supports multiple alarm/monitoring protocols (e.g. SIA, Contact ID)
24-month warranty