# Ajax WaterStop Wireless Water Shut-off Valve 3/4 inch White

**URL:** https://aio.lv/en/product--ajax-systems-52269155wh1--12573244
**Data updated:** 2026-07-09 14:51 (EEST)
**Category:** Home Goods Accessories
**Manufacturer:** Ajax Systems
**Manufacturer code:** 52269.155.WH1
**EAN:** 4823114030963
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 580.49 €
**Prices and availability valid until:** 2026-08-08 23:59
**Price without VAT (21%):** 479.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ajax-systems-52269155wh1--12573244

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.08.2026 | free |
| Pickup points | 12.08.2026 | 1.89 EUR |
| Courier delivery to door | 12.08.2026 | 4.99 EUR |

## Summary description

The Ajax WaterStop is a wireless shut-off valve designed for remote water supply control. Operating on the Jeweller radio protocol at 866-922 MHz, it integrates seamlessly into security systems to prevent flooding. Powered by CR123A batteries, this 3/4-inch valve offers reliable automation for residential and commercial plumbing systems, ensuring rapid response to leak detection signals.

## Long description

The Ajax WaterStop is a professional-grade wireless shut-off valve designed to provide remote control over water supply systems. By integrating seamlessly with the Ajax security ecosystem, it acts as a critical defense against flooding, automatically closing the water supply in just 5 seconds when a leak is detected by compatible sensors. Built with a high-torque electric actuator and a durable brass valve, this device ensures reliability in both residential and commercial plumbing environments.
Advantages
The primary strength of the Ajax WaterStop lies in its rapid response time and autonomous operation. With a powerful actuator capable of 8.5 N•m torque, it can effectively close even stiff or rarely used valves without risk of damage. Its wireless nature eliminates the need for complex wiring, allowing for installation in tight spaces or technical shafts where traditional wired systems would be impractical. The device offers exceptional energy efficiency, with a battery life of up to three years, and supports an optional external power supply for high-demand scenarios. Furthermore, the use of the proprietary Jeweller radio protocol ensures secure, encrypted communication with the hub, protecting the system against signal jamming and unauthorized access.
Suitable for
Residential homes and apartments to prevent flood damage
Commercial buildings and office spaces
Technical rooms and utility closets
Hard-to-reach plumbing installations
Automated water management scenarios
The WaterStop may not be suitable for industrial-scale high-pressure pipelines that exceed the specified torque or diameter requirements. It is also not intended for use in environments where the radio signal is completely blocked by heavy lead shielding or where the ambient temperature consistently falls outside the manufacturer's operational specifications.
Key specifications
Valve size: 3/4 inch
Connectivity: Wireless via Jeweller protocol (866-922 MHz)
Response time: 5 seconds
Torque: 8.5 N•m
Power source: CR123A batteries or optional 9–12 V⎓ external supply
Dimensions: 70 x 104 x 140 mm
Compatibility: ISO 5211 standard ball valves
Installation involves mounting the valve into the existing plumbing line, followed by attaching the electric actuator to the valve platform. The actuator can be positioned in four different orientations to suit the available space. Once physically installed, the device is added to the Ajax security system via the mobile application, where users can configure automated scenarios, such as shutting off water when the system is armed or when a leak detector triggers an alarm.
What to consider before purchase
Ensure the pipe diameter matches the 3/4 inch valve size
Verify that the installation location is within the radio range of the Ajax hub or a range extender
Check for available space to accommodate the actuator unit
Confirm if an external power supply is needed for your specific usage intensity
For optimal performance, it is recommended to test the valve operation periodically and ensure that the Ajax hub is updated to the latest firmware. If installing in a location with poor signal, consider adding an Ajax ReX range extender to maintain a stable connection.

## Specifications

| Feature | Value |
|---|---|
| Weight | 1.012 kg |
| Compatibility | Hub Plus, Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, Hub Hybrid (2G), Hub Hybrid (4G), Rex, Rex 2 |
| Battery type | CR123A |
| Wireless technology | RF Wireless |
| Operating temperature (T-T) | 0 - 60 |
| Number of batteries supported | 4 |
| Power source | Battery |
| Height | 140 mm |
| Width | 70 mm |
| Depth | 104 mm |
| Connectivity technology | Wireless |
| Product colour | White |
| Operating frequency | 866 - 922 |
| Battery life | 3 year(s) |
| Battery voltage | 14 V |
| Batteries included | Yes |
| Transmission distance | 1100 m |
| Maximum water pressure | 10 bar |
| Quantity per pack | 1 pc(s) |
| Maximum water temperature | 170 °C |
| Outlet hose diameter | 0.75 " |
| Adjustable water flow control | Yes |

## FAQ

### How much does the Ajax WaterStop Wireless Water Shut-off Valve cost, and is it available for purchase?

The price is 580.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.08.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Ajax Systems products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Ajax Systems service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12573244/68937080_large.webp