# Ajax WaterStop Wireless Automatic Water Shut-off Valve

**URL:** https://aio.lv/en/product--ajax-52270146bl1--12501537
**Data updated:** 2026-06-07 13:13 (EEST)
**Category:** Smart Sensors
**Manufacturer:** Ajax
**Manufacturer code:** 52270.146.BL1
**EAN:** 4823114030994
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 312.49 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 258.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ajax-52270146bl1--12501537

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 23.07.2026 | free |
| Pickup points | 28.07.2026 | 1.89 EUR |
| Courier delivery to door | 28.07.2026 | 4.99 EUR |

## Summary description

The Ajax WaterStop is a wireless automatic water shut-off valve designed for remote control of water supply in residential and commercial systems. Operating on an RF frequency of 866-922 MHz, it integrates seamlessly into the Ajax security ecosystem. Powered by CR123A batteries, this device ensures reliable performance for emergency leak prevention and automated water management, providing peace of mind through precise remote valve control.

## Long description

The Ajax WaterStop is a professional-grade wireless automatic water shut-off valve designed to provide reliable protection against flooding in residential and commercial environments. By integrating seamlessly into the Ajax security ecosystem, this device enables remote control of water supply and automatic shut-off in the event of a leak. Powered by long-lasting batteries and utilizing advanced radio communication, it ensures continuous monitoring and rapid response to potential water damage.
Advantages
The WaterStop features a powerful electric actuator capable of delivering 8.5 N•m of torque, allowing it to close even stuck valves within 5 seconds. Its wireless design eliminates the need for complex wiring, making installation straightforward and non-intrusive. The system is highly autonomous, offering up to 3 years of battery life, with the option for external power for high-demand scenarios. Furthermore, the device is built for durability, featuring protection against overcurrent and overheating, and it supports secure two-way communication to prevent signal interference or tampering.
Suitable for
Residential homes and apartments for automated leak prevention
Commercial buildings and offices requiring remote water management
Hard-to-reach plumbing areas such as technical boxes or pipe tunnels
Integration with existing Ajax security systems and leak detectors
When it may not be suitable
This device is designed specifically for use within the Ajax security ecosystem and requires an Ajax hub to function. It is not intended for standalone operation without a compatible hub. Additionally, while the actuator is robust, it must be installed on a compatible ball valve that meets the ISO 5211 standard to ensure proper mechanical operation.
Key specifications
Wireless technology: Jeweller RF protocol
Operating frequency: 866–922 MHz
Power source: CR123A batteries (3V) or optional 9–12V DC external supply
Shut-off time: 5 seconds
Torque: 8.5 N•m
Dimensions: 70 x 104 x 140 mm
Compatibility: Ball valves meeting ISO 5211 standard
How to use
Installation involves mounting the shut-off valve into your existing plumbing system, followed by attaching the electric actuator to the valve platform. The actuator can be positioned in four different orientations to fit tight spaces. Once physically installed, the device is added to the Ajax system via the mobile application by scanning a QR code. Users can then configure automated scenarios, such as shutting off water when the system is armed or when a leak detector is triggered, and manage the valve status remotely from anywhere with an internet connection.
What to consider before purchase
Ensure your existing ball valve is compatible with the ISO 5211 standard
Verify that you have an Ajax hub installed at the location
Check the pipe size to ensure the valve matches your plumbing requirements
Consider if an external power supply is needed for your specific installation environment
Usage recommendations: For optimal performance, test the valve operation periodically through the Ajax app. If the device is installed in an area with extreme temperatures, consider using an external 9–12V power supply to extend the lifespan of the backup batteries and ensure consistent operation.

## Specifications

| Feature | Value |
|---|---|
| Compatibility | Hub Plus, Hub 2 (2G), Hub 2 (4G), Hub 2 Plus, Hub Hybrid (2G), Hub Hybrid (4G), Rex, Rex 2 |
| Battery life | 3 year(s) |
| Battery voltage | 14 V |
| Transmission distance | 1100 m |
| Maximum water pressure | 10 bar |
| Maximum water temperature | 170 °C |
| Outlet hose diameter | 0.5 " |
| Adjustable water flow control | Yes |

### Features

| Feature | Value |
|---|---|
| Wireless technology | RF Wireless |
| Connectivity technology | Wireless |
| Product colour | Black |
| Operating frequency | 866 - 922 |

### Power

| Feature | Value |
|---|---|
| Battery type | CR123A |
| Number of batteries supported | 4 |
| Power source | Battery |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 1.012 kg |
| Height | 140 mm |
| Width | 70 mm |
| Depth | 104 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating temperature (T-T) | 0 - 60 |

### Packaging content

| Feature | Value |
|---|---|
| Batteries included | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Quantity per pack | 1 pc(s) |

## FAQ

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

The price is 312.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 23.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Ajax WaterStop Wireless Water Shut-off Valve be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 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 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: connectivity technology, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/12501537/68840436_large.webp