At a glance
- Detection
- Sensitive element
- Glass break detection
- Sensitive element: electret microphone
- Power supply
- Battery: 1 × CR123A, Pre-installed
In the box
- CombiProtect Jeweller
- SmartBracket mounting panel
- CR123A battery (pre-installed)
- Installation kit
- Quick start guide
Ajax CombiProtect Jeweller wireless motion and glass break detector, up to 12 m
₹11,171 Incl. GST
₹9,467 + 18% GST
At a glance
- Detection
- Sensitive element
- Glass break detection
- Sensitive element: electret microphone
- Power supply
- Battery: 1 × CR123A, Pre-installed
One indoor detector that raises your Ajax alarm for both movement in a room and breaking glass, while ignoring pets up to 20 kg. Motion up to 12 m, glass break up to 9 m, up to 5 years on one CR123A battery; works with an Ajax hub.
- WarrantyManufacturer warranty under Ajax's terms: 2 years. Warranty claims
- DeliveryPrice, availability and delivery charges are confirmed in your quotation. Shipping and delivery
Overview
The Ajax CombiProtect Jeweller is one indoor detector that raises your Ajax alarm for both movement in a room and the sound of breaking glass. A passive infrared (PIR) sensor watches for people moving up to 12 m away while a microphone listens for glass breaking up to 9 m away, and pets up to 20 kg are ignored. It suits living rooms, shop floors and offices with windows or glass doors.
Is it right for you?
- Choose it for a room with windows or glass doors where you want motion and glass break cover from one device.
- Pets up to 20 kg and 50 cm tall are ignored, so it suits homes with a cat or small dog.
- It will not detect breaking glass covered with shockproof, sun, decorative or any other film.
- If the room has no glass to watch, a plain motion detector is simpler; if it only needs glass cover, see GlassProtect.
Key features
- Motion detection up to 12 m across 88.5 degrees horizontally and 80 degrees vertically when installed at 2.4 m, for movement from 0.3 to 2 m per second.
- Three motion sensitivity levels, giving measured coverage of 13.7 x 16.0 m (high), 8.6 x 7.6 m (normal) or 7.5 x 4.8 m (low).
- Pet immunity up to 20 kg and 50 cm height, with the SmartDetect algorithm and temperature compensation against false alarms.
- Glass break detection from 0.3 to 9 m across 180 degrees, with three sensitivity levels and DualTone verification on low and high frequencies.
- Detects breaking of standard, tempered, laminated, wired, insulated and annealed glass of the listed thicknesses, with a minimum pane size of 279 x 279 mm.
- Jeweller radio to the hub or range extender up to 1,200 m in open space, encrypted with frequency hopping.
- Tamper alarm and communication loss detection after 36 s.
- One CR123A battery, pre-installed, rated for up to 5 years; 110 x 65 x 50 mm, 91 g, in black or white.
What else you need
An Ajax hub. Compatible hubs and range extenders include Hub (2G), Hub (4G), Hub Plus, Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, Hub BP, ReX, ReX 2, Superior Hub G3, Superior Hub Hybrid, Superior Hub Hybrid 2, Superior MegaHub, Superior ReX G3, EN54 Fire Hub and EN54 Fire ReX.
The Ajax app, where both sensitivities are set by an installer (PRO) or a user with admin rights.
Installation
An Ajax installer can fit it with the SmartBracket mounting panel at the recommended height of 2.4 m, with the lens at right angles to the likely path of an intruder and the glass within 9 m.
Before you buy
Glass covered with any film will not be detected.
Indoor use only, from -10 to 40 °C and up to 75% humidity, IP50.
Motion range is specified at a 2.4 m mounting height; other heights change coverage.
Features

Size and fit
Technical specifications
Key facts
- What is it?
- Door & Window SensorsBrand Ajax, model CP.Y.J
- How is it powered?
- Battery: 1 × CR123A, Pre-installed
- Can it be used outdoors?
- IP50
- What comes in the box?
- CombiProtect Jeweller; SmartBracket mounting panel; CR123A battery (pre-installed); Installation kit and 1 more
- Which documents are available?
- Datasheet, online manual, software (2), regional compliance reference (2), online specifications (3) Open documents
- Can SecurityGearHub help with installation?
- Setup guidanceManuals, wiring guides and answers to setup questions. On-site work is arranged separately where available. Ask about installation
RelatedSolutionIntrusion alarm systemsGuideWireless alarm system guideDocumentsAll Ajax documents
- Manufacturer model
- CP.Y.J
- Detection
- Sensitive element; PIR sensor; Motion detection distance; up to 12 m; When installed at the height of 2.4 m.; Motion detection angle; horizontal: 88.5°; Motion detection speed; from 0.3 to 2 m/s; The direction of the detector lens should be perpendicular to an alleged intrusion path into the facility.; Sensitivity; 3 levels; Adjusted by a PRO or a user with admin rights in the Ajax app.; Motion detection measured range for sensitivity levels; High: 13.7 × 16.0 m (44.9 × 52.4 ft); Normal: 8.6 × 7.6 m (28.2 × 24.9 ft); Low: 7.5 × 4.8 m (24.8 × 15.7 ft); Pet immunity; weight: up to 20 kg; height: up to 50 cm; False alarm prevention; SmartDetect; Software algorithm.; Temperature compensation; Effective motion detection at temperatures from -10 °C to +40 °C.
- Glass break detection
- Sensitive element: electret microphone; Glass break detection distance: from 0.3 to 9 m; Glass break detection angles: horizontal: 180°; Sensitivity: 3 levels, False alarm prevention (Adjusted by a PRO or a user with admin rights in the Ajax app); DualTone: (Two-factor software algorithm for glass break verification by low and high sound frequencies)
- Power supply
- Battery: 1 × CR123A, Pre-installed; Type: type C; Calculated battery life: up to 5 years; Operating voltage range: 2.1-3.3 V DC; Nominal operating voltage: 3 V DC; Quiescent current consumption at nominal voltage: 38 μA; Maximum current consumption at nominal voltage: 60 mA; Full battery capacity: 1,600 mAh; Low battery voltage: 2.5 V DC; Low battery recovery voltage: 2.7 V DC; End-of-life battery voltage: 2.1 V DC (The device switches off); End-of-life battery capacity: 300 mAh, Manufacturer, Huiderui or Duracell
- Enclosure
- Dimensions: 110 × 65 × 50 mm; Weight: 91 g; Operating temperature range: from -10 °C to +40 °C; Operating humidity: up to 75%; Protection class: IP50
- Warranty
- Manufacturer warranty under Ajax's terms: 2 years. How claims work
Product attributes and shipping details
| Brand | Ajax |
|---|---|
| Colour | Black, White |
| IP Rating | IP50 |
| Alarm Technology | Jeweller |
Downloads
Download software
- Ajax Security System (iOS)Version 3.59 · iOS 18.0+ · Released October 28, 2026Prerequisites: Compatible Ajax hub; Ajax account; Device is added to a compatible Ajax hub and configured in Ajax apps (hub required)Licence: Free; account requiredSoftware · Family · apps.apple.comView official download page
- Ajax Security System (Android)Android · Released November 9, 2026Prerequisites: Compatible Ajax hub; Ajax account; Device is added to a compatible Ajax hub and configured in Ajax apps (hub required)Licence: Free; account requiredSoftware · Family · play.google.comView official download page
Documentation
- CombiProtect JewellerDatasheet · Family · 3.7 MBDownload
- Ajax CombiProtect Jeweller product pageOnline specifications · Family · ajax.systemsView official page
- Ajax CombiProtect Jeweller technical specifications pageOnline specifications · Family · ajax.systemsView official page
- Ajax device compatibility with hubs and control elementsOnline specifications · General · ajax.systemsView official page
User manual
- Ajax CombiProtect Jeweller: Online manualOnline manual · Family · ajax.systemsView official page
Series documents can differ from your exact model. Report a wrong or missing file
Questions about this product
Does it ignore pets?
Yes, pets up to 20 kg and under 50 cm tall are ignored.
How far does it see and hear?
Motion up to 12 m when mounted at 2.4 m, and breaking glass from 0.3 to 9 m.
Does it work on filmed glass?
It will not detect breaking glass that is covered with shockproof, sun, decorative or any other film.
How long does the battery last?
Up to 5 years on one CR123A battery, which comes pre-installed.
Does it need an internet connection?
No. It talks to the hub by radio; the hub handles the internet connection.
Can it be used outdoors?
No, it is for indoor use only.
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