At a glance
- Smoke detection
- Sensitive element: double-spectrum optical sensor
- Power supply
- For FireProtect 2 SB (Heat/Smoke)
In the box
- FireProtect 2 SB (Heat/Smoke) Jeweller
- SmartBracket mounting panel
- Installation kit
- Quick start guide
Model FP2.SBHS.JAjax FireProtect 2 SB (Heat/Smoke) Jeweller
₹12,264 Incl. GST
₹10,393 + 18% GST
At a glance
- Smoke detection
- Sensitive element: double-spectrum optical sensor
- Power supply
- For FireProtect 2 SB (Heat/Smoke)
Smoke and heat alarm that sounds its own 85 dB siren and alerts your Ajax system, with a double-spectrum smoke sensor that ignores water vapour. Class A1R heat sensor, sealed batteries rated for 10 years, nothing to replace; works with Ajax 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 FireProtect 2 SB (Heat/Smoke) Jeweller is a smoke and heat alarm that sounds its own 85 dB siren and alerts your Ajax system. A double-spectrum optical sensor recognises smoke by particle size and ignores water vapour, and a Class A1R heat sensor catches a dangerous temperature or a fast rise. Its batteries are sealed and rated for 10 years, so there is nothing to replace. It suits bedrooms, hallways, living rooms, offices and shops.
Is it right for you?
- Choose it for rooms where you want smoke and heat detection with no battery changes for the life of the detector.
- Because it ignores water vapour, it suits hallways near bathrooms and kitchens better than a basic smoke alarm.
- If you prefer replaceable batteries, see the RB (Heat/Smoke) version.
- Hub (2G) Jeweller is not on its compatibility list; it is listed for Hub (4G), Hub Plus, Hub 2, Hub 2 Plus, ReX and ReX 2 among others.
Key features
- Double-spectrum optical smoke sensor that recognises smoke by particle size and does not react to water vapour.
- Patented smoke chamber that keeps out dust, dirt and insects.
- Heat sensor meeting the requirements for Class A1R heat detectors under EN 54-5 and BS 5446-2: alarm above 64 °C or on a rise of more than 10 °C within 1 minute.
- Built-in siren at 85 dB at 3 m, sounding until the cause is cleared or the user silences it.
- Interconnected alarm through the hub within 20 seconds, plus a fallback link detector to detector that sounds every connected detector within a minute even if the hub is lost (firmware 5.59.2.XX or later).
- LED indication: green every 56 seconds for power, yellow for faults such as a dirty smoke chamber or end of service life, red for a fire alarm.
- Front button starts a smoke chamber test in normal mode and silences the siren during an alarm or fault.
- Jeweller radio up to 1,700 m in open space, encrypted with frequency hopping; two sealed lithium batteries rated for 10 years; 124 x 124 x 45 mm, 268.5 g.
What else you need
An Ajax hub. Compatible hubs and range extenders include 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, which allows the detector’s position to be adjusted after installation, and add it in the app. It is for indoor use.
Before you buy
Indoor use only, from 0 to 50 °C and up to 80% humidity, IP20.
The batteries cannot be replaced; the detector is rated for 10 years of battery life.
The self-test is not available while the detector is in an alarm state.
Communication loss is detected within 15 minutes; the polling interval is fixed at 300 seconds.
Features
In use
Smoke and heat alarm that sounds its own 85 dB siren and alerts your Ajax system, with a double-spectrum smoke sensor that ignores water vapour. Class A1R heat sensor, sealed batteries rated for 10 years, nothing to replace; works with Ajax hubs.
Technical specifications
Key facts
- What is it?
- Fire & Environmental DetectorsBrand Ajax, model FP2.SBHS.J
- How is it powered?
- For FireProtect 2 SB (Heat/Smoke)
- Can it be used outdoors?
- IP20
- What comes in the box?
- FireProtect 2 SB (Heat/Smoke) Jeweller; SmartBracket mounting panel; Installation kit; Quick start guide
- Which documents are available?
- Datasheet, online manual, software (2), regional compliance reference (4), 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 systemsDocumentsAll Ajax documents
- Manufacturer model
- FP2.SBHS.J
- Smoke detection
- Sensitive element: double-spectrum optical sensor (Recognizes smoke by the size of particles in the air); Protection from false alarms: (Does not react to water vapor); Patented smoke chamber: (Protects the smoke sensor from dust, dirt, and insects)
- Dangerous temperature detection
- Sensitive element: according to the requirements for Class A1R heat detectors (Requirements of EN 54-5 and BS 5446-2 standards); High temperature alarm: at temperatures above 64 °C; Temperature spike alarm: when the temperature rises more than 10 °C in 1 minute or less
- Additional features
- In-built siren: volume 85 dB at a distance of 3 metres (Sound notification of alarms. Active until the reason for triggering is eliminated or until the user disables notification); Interconnected fire detectors alarms: via primary interconnection, via fallback interconnection1 (If one of the fire detectors in the system detects a threat, it sends an alarm to the hub. Within 20 seconds, the hub initiates an interconnected alarm and sends data to Ajax apps. At the same time with notifying the hub, the initiating detector sends an alarm directly to other detectors. All connected detectors activate the buzzer within a minute. It will work even in the worst-case scenario of losing connection with the hub. 1 Fallback interconnected alarm is available only for FireProtect 2 detectors with firmware version 5.59.2.XX or later. Devices that support the fallback interconnected alarm are marked on the package with a “Fallback interconnect supported” label); LED indication: green is a power indication, yellow is an indication of malfunctions, red is an indication of fire alarms, Button on the front panel of the detector (A LED indicator on the device enclosure lights up once every 56 seconds. The indication meets the requirements of EN 50291. A LED indicator on the device enclosure lights up when malfunctions are detected. For example, in the case of discharged batteries, contamination of the smoke chamber, or end of the service life. A LED indicator on the device enclosure lights up when the detector registers a fire alarm. In normal mode, when pressed, it starts the smoke chamber test. In the event of an alarm or malfunction, the pressing turns off the detector sound notification)
- Power supply
- For FireProtect 2 SB (Heat/Smoke); 2 non-replaceable lithium batteries; 10 years of battery life.
- Enclosure
- Dimensions: 124 × 124 × 45 mm; Weight: 268.5 g; Operating temperature range: from 0 °C to +50 °C; Operating humidity: up to 80%; Protection class: IP20
- Warranty
- Manufacturer warranty under Ajax's terms: 2 years. How claims work
Product attributes and shipping details
| Brand | Ajax |
|---|---|
| Colour | Black, White |
| IP Rating | IP20 |
| 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 2 SB (Heat/Smoke) JewellerDatasheet · Family · 1.6 MBDownload
- Ajax FireProtect 2 SB (Heat/Smoke) Jeweller product pageOnline specifications · Family · ajax.systemsView official page
- Ajax product 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 (4)
- Ajax FireProtect 2 SB (Heat/Smoke) Jeweller declaration of conformityRegional compliance reference · Regional · ajax.systemsDownload
- Ajax FireProtect 2 SB (Heat/Smoke) Jeweller EU declaration of conformityRegional compliance reference · Regional · ajax.systemsDownload
- Ajax RoHS EU declaration of conformity (all devices)Regional compliance reference · General · ajax.systemsDownload
- Ajax FireProtect 2 SB (Heat/Smoke) Jeweller UK declaration of conformityRegional compliance reference · Regional · ajax.systemsDownload
User manual
- Ajax FireProtect 2 SB (Heat/Smoke) 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
Will steam from a bathroom set it off?
The double-spectrum sensor recognises smoke by particle size and does not react to water vapour.
Can the batteries be replaced?
No. They are sealed and rated for 10 years. The RB (Heat/Smoke) version has replaceable batteries.
When does the heat alarm trigger?
Above 64 °C, or when the temperature rises by more than 10 °C within 1 minute.
Do all the fire detectors sound together?
Yes. The hub triggers an interconnected alarm within 20 seconds, and supported units also link directly to each other as a fallback.
Which hubs does it work with?
Hub (4G), Hub Plus, Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, Hub BP, ReX, ReX 2 and the Superior hubs. Hub (2G) is not on the list.
Can it be used outdoors?
No, it is for indoor use only.
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