Ajax Baseline Kit 4 | Hub 2 (2G Sim/Ethernet) | MotionProtect U, DoorProtect U, Keypad Plus, HomeSiren U & StreetSiren DoubleDeck) | White
Summary
The Ajax Baseline Kit 4 (SKU: 35657.117.WH1) is a complete wireless intruder alarm starter kit designed for houses and larger properties requiring keypad-based access control. Built around the Ajax Hub 2 (2G) Jeweller control panel, the kit provides layered protection from the perimeter inwards, with no wiring required. All components communicate via Ajax’s proprietary Jeweller radio protocol, offering encrypted two-way communication and a range of up to 2,000 metres in open space.
The kit includes a KeyPad Plus Jeweller touch keypad for wall-mounted arming and disarming, two MotionProtect U Jeweller passive infrared motion detectors for interior coverage, one DoorProtect U Jeweller magnetic opening detector for a door or window, a HomeSiren U Jeweller indoor siren, and a StreetSiren DoubleDeck Jeweller outdoor siren. The KeyPad Plus supports authentication by PIN code, Ajax Pass contactless card, or Tag key fob — all using DESFire® 128-bit encryption — making it ideal for properties where multiple users need convenient, keypad-controlled access.
Please note, the cover for the external sounder is not included within this kit. The cover can be found here.
The system is managed through the Ajax app for iOS and Android, allowing remote arming, disarming, and event monitoring from anywhere. The Hub 2 (2G) supports connection to a professional alarm receiving centre (ARC) via SurGard (Contact ID) and SIA (DC-09) protocols, making it suitable for monitored installations. The kit is compliant with EN 50131 Grade 2 and PD 6662:2017.
Features
- Complete wireless alarm kit — no cabling required, all devices are battery-powered and ready to use out of the box
- Hub 2 (2G) Jeweller control panel — connects via Ethernet and two SIM cards (2G/3G) for triple-path communications
- Automatic failover between Ethernet and cellular connections to maintain system integrity
- Supports up to 100 wireless Ajax devices, 9 security groups, 50 users, and 32 automation scenarios
- KeyPad Plus Jeweller touch keypad — arm, disarm, and activate night mode by code, Pass card, or Tag key fob
- DESFire® 128-bit encrypted contactless authentication — virtually copy-proof card and key fob technology
- Duress code support — silently alerts the security company if a user is forced to disarm the system
- Keypad auto-lock after three incorrect code attempts within one minute — adjustable lock duration of 3–180 minutes
- Two MotionProtect U Jeweller PIR detectors — 12 m detection radius, pet-immune when correctly installed
- DoorProtect U Jeweller magnetic opening detector — dual reed switch design with left/right magnet flexibility
- HomeSiren U Jeweller indoor siren — up to 105 dB sound output with LED indicator, up to 2,000 m wireless range
- StreetSiren DoubleDeck Jeweller outdoor siren — up to 113 dB, LED frame, IP54 rated, supports optional Brandplate faceplate
- Jeweller encrypted two-way radio protocol — block encryption with a dynamic key, anti-jamming, and anti-sabotage protection
- Tamper detection on all devices — instant alerts if any device is removed from its mounting surface
- Up to 5 years battery life across all wireless devices — battery status visible in the Ajax app at all times
- Remote configuration and management via the Ajax app for iOS and Android, or Ajax PRO app for installers
- ARC-compatible via SurGard (Contact ID), SIA (DC-09), and ADEMCO 685 protocols
- Compliant with EN 50131 Grade 2 and PD 6662:2017
- Available in white (SKU: 35657.117.WH1) and black (SKU: 35656.117.BL1)
FAQs
What is included in the Ajax Baseline Kit 4?
The kit contains one Hub 2 (2G) Jeweller control panel, one KeyPad Plus Jeweller touch keypad, two MotionProtect U Jeweller PIR motion detectors, one DoorProtect U Jeweller magnetic opening detector, one HomeSiren U Jeweller indoor siren, and one StreetSiren DoubleDeck Jeweller outdoor siren.
How does the KeyPad Plus differ from the SpaceControl keyfobs in other Ajax kits?
The KeyPad Plus Jeweller is a wall-mounted touch keypad that allows users to arm and disarm the system by entering a PIN code or presenting an Ajax Pass card or Tag key fob. Unlike the SpaceControl keyfob, it is fixed in place and does not need to be carried. It also supports duress codes, additional access codes for non-registered users, and a panic button — making it better suited to properties with multiple users or where wall-mounted control is preferred.
What contactless access devices are compatible with the KeyPad Plus?
The KeyPad Plus Jeweller is compatible with Ajax Pass contactless cards and Ajax Tag key fobs, both of which use DESFire® 128-bit encryption for copy protection. These are sold separately and can be assigned to individual users in the Ajax app.
Do I need professional installation?
All devices are wireless and battery-powered, and can be installed without specialist tools. However, for monitored installations connected to an alarm receiving centre (ARC) or for compliance with PD 6662:2017, professional installation and commissioning by a qualified security engineer is recommended.
Can the system be connected to an alarm receiving centre (ARC)?
Yes. The Hub 2 (2G) supports connection to a central monitoring station via SurGard (Contact ID), SIA (DC-09), ADEMCO 685, and other proprietary protocols. The system is compliant with EN 50131 Grade 2 and PD 6662:2017, making it suitable for professionally monitored installations.
What happens if the broadband connection fails?
The Hub 2 (2G) automatically switches between Ethernet and cellular (2G/3G) connections. If the primary Ethernet connection is lost, the hub fails over to the SIM card connection, ensuring the system remains communicating with the ARC and app users at all times.
Can I expand the system beyond the devices in the kit?
Yes. The Hub 2 (2G) supports up to 100 wireless Ajax devices, including additional motion detectors, door contacts, smoke detectors, flood detectors, range extenders, and more. The system can be expanded over time by adding compatible Ajax Jeweller devices through the app.
How long do the batteries last?
The motion detectors, door detector, indoor siren, and outdoor siren are all rated for up to 5 years of battery life. The KeyPad Plus Jeweller uses 4 × AA (FR6) batteries and is rated for up to 3.5 years of autonomous operation. Battery status is monitored by the hub and reported in the Ajax app, with advance low-battery notifications sent to users and installers.
Specifications
- SKU: 35657.117.WH1
- Colour: White
- Kit Contents: Hub 2 (2G) Jeweller × 1, KeyPad Plus Jeweller × 1, MotionProtect U Jeweller × 2, DoorProtect U Jeweller × 1, HomeSiren U Jeweller × 1, StreetSiren DoubleDeck Jeweller × 1
- Radio Protocol: Jeweller (two-way encrypted)
- Communication Range (Open Space): Up to 2,000 m (hub to devices)
- Hub Model: Hub 2 (2G) Jeweller
- Hub Communication Channels: Ethernet + 2 × SIM (2G/3G)
- Hub Connected Devices: Up to 100
- Hub Security Groups: Up to 9
- Hub Users: Up to 50
- Hub Backup Battery: Built-in Li-ion 2 Ah — up to 16 hours without Ethernet
- Hub Power Supply: 110–240 V AC
- Keypad Model: KeyPad Plus Jeweller
- Keypad Authentication Methods: PIN code, Ajax Pass card, Ajax Tag key fob
- Keypad Contactless Technology: DESFire® 128-bit encryption (ISO 14443)
- Keypad Battery: 4 × AA (FR6), up to 3.5 years
- Motion Detector Type: MotionProtect U Jeweller — passive infrared (PIR)
- Motion Detection Range: Up to 12 m radius
- Motion Detector Battery: 1 × CR123A, up to 5 years
- Opening Detector Type: DoorProtect U Jeweller — dual reed switch
- Opening Detector Battery: CR123A, up to 5 years
- Indoor Siren Model: HomeSiren U Jeweller
- Indoor Siren Volume: Up to 105 dB
- Indoor Siren Battery: CR123A, up to 5 years
- Outdoor Siren Model: StreetSiren DoubleDeck Jeweller
- Outdoor Siren Volume: Up to 113 dB
- Outdoor Siren Battery: 4 × CR123A, up to 5 years
- Outdoor Siren Ingress Protection: IP54
- App Compatibility: Ajax app (iOS, Android); Ajax PRO app (iOS, Android, Windows)
- ARC Protocols: SurGard (Contact ID), SIA (DC-09), ADEMCO 685
- Standards Compliance: EN 50131 Grade 2, PD 6662:2017
- Encryption: Block encryption with dynamic key
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