In the box
- Curtain Outdoor Jeweller
- SmartBracket mounting panel
- 2 x CR123A battery (pre-installed)
- Angle mount
- Hood
- Installation kit
- Quick start guide
Ajax Curtain Outdoor Jeweller wireless curtain motion detector, PIR plus microwave
₹22,311 Incl. GST
₹18,908 + 18% GST
Curtain detector for outdoor or indoor use that guards a wall, window or door line, using two infrared sensors plus a K-band microwave sensor to cut false alarms. 8 to 10 m reach, IP55, up to 3 years on two CR123A; works with Ajax Hub 2 hubs.
- 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 Curtain Outdoor Jeweller is a wireless curtain motion detector for outside or inside a building. It watches a narrow strip along a wall, across a window or in front of a door and raises the Ajax alarm when someone crosses it, using two infrared sensors and a microwave sensor to avoid false alarms from weather and warm air. It suits terraces, balconies, shopfronts and the outside of doors and windows on an Ajax Hub 2 family system.
Is it right for you?
- It suits guarding a window, door or wall line from the outside, so the alarm goes off before anyone gets in.
- Choose it where sun, wind or warm air would upset a single-technology detector: the microwave sensor confirms the infrared detection.
- It is rated IP55 for -25 to 60 °C; fit the supplied hood to keep rain and snow off the anti-masking system.
- It works with Hub 2, Hub 2 (4G), Hub 2 Plus and the ReX 2 range extender.
- To watch both directions along a wall from one spot, the DualCurtain Outdoor covers two sides.
Key features
- Dual technology: two passive infrared (PIR) sensors plus a 24 GHz K-band microwave sensor, with SmartDetect software, so thermal interference is filtered out.
- Narrow 8° horizontal beam; the vertical angle depends on mounting height. Detection range is adjusted with a slider on the enclosure and starts from 8 m, for mounting heights of 1 to 2.4 m.
- Detects movement at 0.3 to 2 m/s with three sensitivity levels set in the Ajax app.
- Pet mode: mounted at 1 m with the slider set to Pet, it ignores animals below 100 cm tall.
- Anti-masking detects attempts to block the view, an accelerometer alarms if the detector is moved, and a tamper alarm reports removal from the SmartBracket; a holding screw secures it.
- Two CR123A batteries, pre-installed, with a calculated life of up to 3 years.
- Jeweller radio up to 1,700 m in open space, Wings radio for data packet resending, and communication loss detection within 36 s.
- Supplied hood and angle mount; 155 × 77 × 85 mm with the hood, 141 × 60 × 72 mm without.
What else you need
An Ajax Hub 2, Hub 2 (4G) or Hub 2 Plus (or a ReX 2 range extender) and the Ajax app. The hood and angle mount are in the box.
Installation
Mount it at 2.4 m, or at 1 m with the slider set to Pet when pet immunity is wanted, with the beam across the path of approach. Fit the hood outdoors to protect the anti-masking system from rain and snow, and use the holding screw. If a third-party bracket is used, enable the accelerometer. An Ajax installer can survey the wall, set the range slider and add the detector to the hub.
Software and licences
Sensitivity, anti-masking and accelerometer settings are managed in the Ajax app by an administrator or an Ajax PRO.
Before you buy
- Needs a Hub 2 family hub.
- Pet immunity depends on mounting at 1 m with the slider in the Pet position.
- Available in white.
Features

Size and fit
Technical specifications
Key facts
- What is it?
- Motion detectorBrand Ajax, model CO.Y.J
- How is it powered?
- Battery: 2 × CR123A, Pre-installed
- Can it be used outdoors?
- IP55Outdoor
- What comes in the box?
- Curtain Outdoor Jeweller; SmartBracket mounting panel; 2 x CR123A battery (pre-installed); Angle mount and 3 more
- Which documents are available?
- Datasheet, online manual, software (2), regional compliance reference, 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
RelatedGuideWireless alarm system guideDocumentsAll Ajax documents
- Manufacturer model
- CO.Y.J
- Detection
- Sensitive elements: 2 × PIR sensors, 1 × K-band microwave sensor, Operation frequency: 24 GHz (K-band microwave sensor to prevent false alarms caused by thermal interference); Motion detection distance: up to 8 to 12 m (When installed at a height of 1 to 2.4 m. Adjusted with a slider at the detector enclosure); Motion detection angles: horizontal: 8°, vertical: 85°/75°/15° (Depends on the installation height. The angle is 85° or 75° at 2.4 m and 15° at 1 m); Motion detection speed: 0.3 to 2.0 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 apps); Pet immunity: weight: irrelevant, False alarm prevention, Dual motion detection technology (The detector should be installed at a height of 1 metre, and the slider on its enclosure should be set to the Pet position); SmartDetect: Software algorithm; Temperature compensation: (Effective motion detection at temperatures from -25 °C to +60 °C)
- Power supply
- Battery: 2 × CR123A, Pre-installed; Type: type C; Calculated battery life: up to 3 years, Detector’s operating voltage range, 4.1-6.2 V DC, Detector’s nominal operating voltage, 6 V DC, Quiescent detector’s current consumption at nominal voltage, 37 μA, Maximum detector’s current consumption at nominal voltage, 600 mA; Full battery capacity: 1,600 mAh; Low battery voltage: 4.48 V DC; Low battery recovery voltage: 5.14 V DC; End-of-life battery voltage: 4.1 V DC (Device is switched off); End-of-life battery capacity: 170 mAh, Manufacturer, Huiderui or Panasonic
- Enclosure
- Dimensions with hood: 155 × 77 × 85 mm; Dimensions with hood and angle mount: 155 × 84 × 98 mm; Dimensions without hood: 141 × 60 × 72 mm; Dimensions without hood and with angle mount: 141 × 76 × 84 mm; Weight with hood: 299 g; Weight without hood: 223 g; Weight of angle mount: 34 g; Operating temperature range: from -25 °C to +60 °C; Operating humidity: up to 95%; Protection class: IP55
- Warranty
- Manufacturer warranty under Ajax's terms: 2 years. How claims work
Product attributes and shipping details
| Brand | Ajax |
|---|---|
| Environment | Outdoor |
| IP Rating | IP55 |
| 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
- Ajax CO.Y.J datasheet (Curtain Outdoor Jeweller)Datasheet · Family · 2.0 MBDownload
- Ajax Curtain Outdoor Jeweller product pageOnline specifications · Family · ajax.systemsView official page
- Ajax Curtain Outdoor Jeweller technical specifications pageOnline specifications · Family · ajax.systemsView official page
- Ajax device compatibility with hubs and control elementsOnline specifications · General · ajax.systemsView official page
Certificate and compliance document (1)
- Ajax Curtain Outdoor Jeweller EU declaration of conformityRegional compliance reference · Regional · ajax.systemsDownload
User manual
- Ajax Curtain Outdoor 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
Can it be used outdoors?
Yes. It is rated IP55 for -25 to 60 °C and comes with a hood to protect the anti-masking system from rain and snow.
Will it react to pets?
Not when mounted at 1 m with the slider set to Pet, which ignores animals below 100 cm tall.
Does it need an internet connection?
No. It reports to your Ajax hub by Jeweller radio. The hub needs its own connection for app alerts.
What power does it need?
Two CR123A batteries, pre-installed, with a calculated life of up to 3 years.
Which hubs does it work with?
Hub 2, Hub 2 (4G), Hub 2 Plus and the ReX 2 range extender.
What happens if someone covers it?
The anti-masking system reports attempts to block its view, and the accelerometer raises an alarm if the detector is moved.
Ask about this modelSetup, compatibility, what is in the box
Answers are automated. Do not enter personal or account details.
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