At a glance
- Smoke detection
- Sensitive element: photoelectric sensor
- Power supply
- Batteries
In the box
- FireProtect Jeweller
- SmartBracket mounting panel
- Installation kit
- 2 x CR2 battery (pre-installed)
- CR2032 backup battery (pre-installed)
- Quick start guide
Ajax FireProtect Jeweller wireless smoke and heat detector, built-in 85 dB siren
₹9,563 Incl. GST
₹8,104 + 18% GST
At a glance
- Smoke detection
- Sensitive element: photoelectric sensor
- Power supply
- Batteries
Smoke and heat alarm that sounds its own 85 dB siren and alerts you through your Ajax system. Photoelectric smoke sensor, heat alarm above 60 °C or on a fast temperature rise, replaceable batteries lasting up to 4 years; 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 FireProtect Jeweller is a smoke and heat alarm that sounds its own 85 dB siren and alerts you through your Ajax system. A photoelectric sensor detects smoke, a thermistor detects a dangerous temperature or a fast rise, and every FireProtect in the building sounds together when one of them triggers. It uses replaceable batteries and suits homes, offices and shops.
Is it right for you?
- Choose it for bedrooms, hallways, living rooms and offices where you want both smoke and heat detection with an app alert.
- It works whether the alarm is armed or not, and its siren sounds on the device itself.
- The batteries can be changed, unlike the sealed FireProtect 2 SB models.
- If water vapour from a bathroom or kitchen is nearby, the FireProtect 2 range has a double-spectrum sensor that ignores vapour.
Key features
- Photoelectric smoke sensor with the HazeFlow algorithm: the first trigger is ignored and an alarm is raised only if smoke is detected again 30 seconds later.
- Thermistor heat sensor with an alarm on a temperature spike of more than 30 °C within 30 minutes.
- Built-in siren at 85 dB at 3 m, sounding until the cause is cleared or the user silences it.
- Interconnected alarm: every fire detector in the system sounds its siren if one of them registers an alarm, within one polling interval.
- Touch button on the front: in normal mode it starts a smoke chamber test; during an alarm or fault it silences the sound.
- Jeweller radio to the hub or range extender up to 1,300 m in open space, encrypted with frequency hopping.
- Tamper alarm and communication loss detection after 36 s.
- Two CR2 batteries, pre-installed, rated for up to 4 years, plus a pre-installed CR2032 backup battery.
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 and Superior ReX G3.
The Ajax app, where alerts arrive and the detector is managed.
Installation
An Ajax installer can fit it with the SmartBracket mounting panel and add it in the app. It is for indoor use.
Before you buy
Indoor use only, from 0 to 65 °C and up to 80% humidity, IP40.
132 x 132 x 31 mm, 220 g, in black or white.
The siren keeps sounding until the cause of the alarm is removed or the notification is disabled.
Features

In use
Smoke and heat alarm that sounds its own 85 dB siren and alerts you through your Ajax system. Photoelectric smoke sensor, heat alarm above 60 °C or on a fast temperature rise, replaceable batteries lasting up to 4 years; works with an Ajax hub.


Technical specifications
Key facts
- What is it?
- Fire & Environmental DetectorsBrand Ajax, model FP.Y.J
- How is it powered?
- Batteries
- Can it be used outdoors?
- IP40
- What comes in the box?
- FireProtect Jeweller; SmartBracket mounting panel; Installation kit; 2 x CR2 battery (pre-installed) and 2 more
- Which documents are available?
- Datasheet, online manual, software (2), regional compliance reference (3), 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
RelatedDocumentsAll Ajax documents
- Manufacturer model
- FP.Y.J
- Smoke detection
- Sensitive element: photoelectric sensor; False alarm prevention: (The HazeFlow software algorithm checks for smoke before activating the alarm. The system will ignore the first triggering and raise an alarm if the device detects the smoke again after 30 seconds during the second check)
- Dangerous temperature detection
- Sensitive element: thermistor; High temperature alarm: at temperatures above 60 °C; Temperature spike alarm: when the temperature rises more than 30 °C in 30 minutes or less
- Additional features
- Built-in siren: 85 dB volume at a distance of 3 metres (Sound notification of alarms. Active until the reason for triggering is eliminated or until the user disables the notification); Interconnected fire detectors alarm: Indication (All fire detectors in the system turn on built-in sirens if at least one detector registers an alarm. An interconnected fire detectors alarm is activated within one “hub, detector” polling interval); LED: sound, Touch button on the detector’s front panel (The indication shows the detector status and alarms. In normal mode, pressing the button starts the smoke chamber test. In the case of an alarm or malfunction, pressing the button turns off the detector sound notification)
- Power supply
- Batteries; 2 × CR2 (pre-installed); The main power supply. Up to 4 years of battery life.; CR2032 (pre-installed); The backup power supply.
- Enclosure
- Dimensions: 132 × 132 × 31 mm; Weight: 220 g; Operating temperature range: from 0 °C to +65 °C; Operating humidity: up to 80%; Protection class: IP40
- Warranty
- Manufacturer warranty under Ajax's terms: 2 years. How claims work
Product attributes and shipping details
| Brand | Ajax |
|---|---|
| Colour | Black, White |
| IP Rating | IP40 |
| 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
- FireProtect JewellerDatasheet · Family · 1.9 MBDownload
- Ajax FireProtect Jeweller product pageOnline specifications · Family · ajax.systemsView official page
- Ajax FireProtect Jeweller technical specifications pageOnline specifications · Family · ajax.systemsView official page
- Ajax device compatibility with hubs and control elementsOnline specifications · General · ajax.systemsView official page
Certificates and compliance documents (3)
- Ajax FireProtect Jeweller EU declaration of conformity (declaration of performance)Regional compliance reference · Regional · ajax.systemsDownload
- Ajax FireProtect Jeweller EU declaration of conformity (file 2)Regional compliance reference · Regional · ajax.systemsDownload
- Ajax RoHS EU declaration of conformity (all devices)Regional compliance reference · General · ajax.systemsDownload
User manual
- Ajax FireProtect 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 sound on its own or only through the hub?
Both. It has its own 85 dB siren, and the hub sends an alert to the app.
Do all the fire detectors sound together?
Yes. If one registers an alarm, every fire detector in the system sounds its siren.
How do I silence it?
Press the touch button on the front during an alarm.
How long do the batteries last?
The two CR2 batteries are rated for up to 4 years and can be replaced. A CR2032 backup battery is also fitted.
Does it work when the alarm is disarmed?
Yes. Fire detection is always active.
Can it be used outdoors?
No, it is for indoor use only.
Ask about this modelSetup, compatibility, what is in the box
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