At a glance
- Detection
- Contact pairs on all four sides
- Battery Life
- Up to 5 years
- Battery
- 2 × AAA (pre-installed)
- Protection Class
- IP65
- Operating Temperature
- 0 °C to +50 °C
- Dimensions
- 62 × 62 × 14 mm
In the box
- LeaksProtect Jeweller
- 2 x AAA battery (pre-installed)
- Quick start guide
Model LP.Y.JAjax LeaksProtect Jeweller Wireless Water Leak Detector, IP65
₹6,375 Incl. GST
₹5,403 + 18% GST
At a glance
- Detection
- Contact pairs on all four sides
- Battery Life
- Up to 5 years
- Battery
- 2 × AAA (pre-installed)
- Protection Class
- IP65
- Operating Temperature
- 0 °C to +50 °C
- Dimensions
- 62 × 62 × 14 mm
Flat sensor laid on the floor where a leak could start, alerting your Ajax alarm within 0.15 s of water touching it, from small leaks to floods. Contacts on all four sides, IP65, up to 5 years on two AAA batteries; 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 LeaksProtect Jeweller is a flat sensor you lay on the floor where a leak could start. Water touching any of its four sides is reported to your Ajax alarm within 0.15 s, so a dripping washing machine or a burst pipe is caught before it floods the room. It runs for up to 5 years on two AAA batteries and suits kitchens, bathrooms, utility rooms and boiler areas in a home, office or shop.
Is it right for you?
- Choose it for the floor under a washing machine, dishwasher, bathtub, water heater or radiator.
- It is always active, day and night, whether the alarm is armed or not.
- It can trigger automation, for example closing an Ajax WaterStop Jeweller valve to shut off the water.
- It is for indoor use only.
Key features
- Contact pairs on all four sides detect the first signs of water from any direction.
- Alarm sent within 0.15 s of becoming wet.
- Always active, detecting leaks around the clock.
- Can start automation scenarios, such as closing a WaterStop Jeweller valve.
- Jeweller radio to the hub or range extender up to 1,300 m in open space, encrypted with frequency hopping.
- Tamper alarm if the enclosure is opened; communication loss reported after 36 s.
- Two AAA batteries, pre-installed, rated for up to 5 years.
- IP65, 62 x 62 x 14 mm, 41 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 and Superior ReX G3. EN54 Fire Hub and EN54 Fire ReX are also listed.
An Ajax WaterStop Jeweller valve only if you want the water shut off automatically.
The Ajax app, which shows the detector’s state, battery level and connection.
Installation
No tools or installer are needed: place it on the floor where water would first collect. An Ajax installer adds it to the hub in the app if you prefer.
Before you buy
Indoor use only, from 0 to 50 °C and up to 100% humidity.
White units made before May 2026 and black units made before July 2026 measure 59 x 59 x 14 mm instead of 62 x 62 x 14 mm.
Technical specifications
Key facts
- What is it?
- Fire & Environmental DetectorsBrand Ajax, model LP.Y.J
- How is it powered?
- Battery: 2 × AAA, Pre-installed, Type, Type C
- Can it be used outdoors?
- IP65
- What comes in the box?
- LeaksProtect Jeweller; 2 x AAA battery (pre-installed); Quick start guide
- 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 systemsDocumentsAll Ajax documents
General
- Manufacturer model
- LP.Y.J
- Frequency Bands
- 866.0 to 866.5 MHz, 868.0 to 868.6 MHz, 868.7 to 869.2 MHz, 905.0 to 926.5 MHz, 915.85 to 926.5 MHz, 921.0 to 922.0 MHz (depends on sales region)
- Maximum Effective Radiated Power
- Up to 20 mW
- Radio Range (Open Space)
- Up to 1,300 m
- Encryption
- Block encryption with dynamic key
- Frequency Hopping
- Yes
- Communication Loss Detection
- After 36 s (depends on Jeweller settings)
- Detection
- Contact pairs on all four sides
- Detection Time
- Within 0.15 s
- Automation
- Can trigger scenarios, for example closing a WaterStop Jeweller valve
Input
- Power supply
- Battery: 2 × AAA, Pre-installed, Type, Type C; Calculated battery life: up to 5 years, Detector’s operating voltage range, 2.1-3.3 V DC, Detector’s nominal operating voltage, 3 V DC, Quiescent detector’s current consumption at nominal voltage, 14 μA, Maximum detector’s current consumption at nominal voltage, 33 mA; Full battery capacity: 1,000 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 (Device is switched off); End-of-life battery capacity: 100 mAh, Manufacturer, Huiderui, Energizer
- Battery
- 2 × AAA (pre-installed)
- Battery Life
- Up to 5 years
Protection
- Tamper Alarm
- Yes (enclosure integrity)
Environment
- Operating Temperature
- 0 °C to +50 °C
- Operating Humidity
- Up to 100%
- Protection Class
- IP65
Physical
- Enclosure
- Dimensions: 62 × 62 × 14 mm, 2.44″ × 2.44″ × 0.55″ (For white devices manufactured before May 2026 and black devices manufactured before July 2026: 59 × 59 × 14 mm. For white devices manufactured before May 2026 and black devices manufactured before July 2026: 2.32″ × 2.32″ × 0.55″); Weight: 41 g; Operating temperature range: from 0 °C to +50 °C; Operating humidity: up to 100%; Protection class: IP65
- Dimensions
- 62 × 62 × 14 mm (earlier units 59 × 59 × 14 mm)
- Weight
- 41 g
- Colours
- Black, White
- Warranty
- Manufacturer warranty under Ajax's terms: 2 years. How claims work
Product attributes and shipping details
| Brand | Ajax |
|---|---|
| Colour | Black, White |
| IP Rating | IP65 |
| 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
- LeaksProtect JewellerDatasheet · Family · 13.6 MBDownload
- Ajax LeaksProtect Jeweller product pageOnline specifications · Family · ajax.systemsView official page
- Ajax LeaksProtect 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 LeaksProtect 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
How quickly does it react?
Within 0.15 s of water touching any of its four sides.
Does it work when the alarm is disarmed?
Yes, it is always active.
Can it turn the water off?
It can trigger an automation scenario, for example closing an Ajax WaterStop Jeweller valve.
How long do the batteries last?
Up to 5 years on two AAA batteries, which come pre-installed.
Does it need any fixing?
No. It is placed on the floor without tools.
Can it be used outdoors?
No, it is for indoor use only, from 0 to 50 °C.
Ask about this modelSetup, compatibility, what is in the box
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