SKU: 8787251756

AJAX WaterStop Wireless Water Shutoff Valve, 20 mm

Sale price$1937.52 Regular price$2152.80
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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3

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Description

AJAX WaterStop Wireless Water Shutoff Valve, 20 mmUltimate Water Leak Protection for Your Smart Home Introducing the AJAX WaterStop, a smart, remotely controlled water shutoff valve designed to integrate seamlessly into your AJAX security system. This device provides peace of mind by automatically shutting off the water supply in as little as 5 7 seconds upon detecting a leak, preventing costly water damage. The WaterStop combines a high quality Bonomi Industries valve with a powerful electric

Ultimate Water Leak Protection for Your Smart Home

Introducing the AJAX WaterStop, a smart, remotely controlled water shutoff valve designed to integrate seamlessly into your AJAX security system. This device provides peace of mind by automatically shutting off the water supply in as little as 5-7 seconds upon detecting a leak, preventing costly water damage. The WaterStop combines a high-quality Bonomi Industries valve with a powerful electric actuator, all controllable from anywhere in the world via the Ajax app. You can also set up automation scenarios to shut off the water at specific times or when you arm your security system.

Robust Design and Reliable Performance

The AJAX WaterStop is built to last, featuring a durable brass valve that is compatible with both hot and cold water pipes. Its powerful electric actuator delivers up to 8.5 N·m of torque, ensuring it can shut off the valve even if it's stuck. The device operates on pre-installed batteries with a life of up to 3 years, and also has the option for an external power supply. For manual control, there is a button on the actuator and a lever on the valve itself.

Advanced Wireless Technology

Utilizing AJAX's proprietary Jeweller radio communication technology, the WaterStop ensures secure and reliable two-way communication with the AJAX hub at a range of up to 1,100 meters in open space. This advanced protocol uses block encryption and frequency hopping to prevent sabotage, spoofing, and data theft, providing a robust and tamper-proof connection.

General
Product Type Wireless Water Shutoff Valve
Brand AJAX
Model WaterStop Jeweller
Color White
Valve Specifications
Valve Type RuB / Bonomi Industries, ISO 5211 standard
Thread Size ¾″ (DN 20, 20 mm)
Material Brass
Compatible Liquids Hot and cold water, non-aggressive liquids
Operating Liquid Temperature Range from -20°C to +120°C
Electric Actuator
Torque Up to 8.5 N·m
Shut-off Speed Up to 7 seconds
Operating Pressure Up to 10 bar
Wireless & Communication
Wireless Technology Jeweller
Communication Range Up to 1,100 meters (in open space)
Frequency Bands 868.0 – 868.6 MHz (or depends on the region of sale)
Maximum ERP up to 20 mW
Power
Power Supply 4 × CR123A batteries (pre-installed)
Battery Life Up to 3 years
External Power Supply (Optional) 9–12 V⎓
Physical
Dimensions (with actuator) 104 × 150 × 70 mm
Weight (with actuator) 1012 g
Operating Temperature Range 0°C to +60°C
Operating Humidity Up to 95%
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8787251756

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4.2 ★★★★★
Based on 27 reviews
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Verified Purchase
Amazon Customer
Dallas, US
★★★★★ 5
It worked! Apple Care was added to my device when I received it!
Style Name: MacBook Pro 14" (M4 Pro/M4 Max), Configuration: 3 years
I purchased an MacBook and AppleCare+ at the same time. A day/two after the purchase I received an email from Amazon that the AppleCare+ was in software and go to digital download. When I downloaded it was just the agreement. Then I started reading all the negative reviews on nightmare experience with Amazon and AppleCare+ not being added. I was very nervous and mentally prepare for the nightmare that lie ahead which having to call Amazon multiple times and then having to call Apple multiple times. To my surprise, right after Amazon delivered the MacBook (I got notification your item was delivered) I got another email from Amazon that AppleCare+ was added the laptop with agreement number and serial number of the laptop I received. I checked Apple's coverage site and sure enough Apple site showed AppleCare+ coverage tied the MacBook. I didn't even open the box or turn it on and see the AppleCare+ coverage. Hopefully this gives some insight to future buyers of AppleCare+ from Amazon!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 25, 2024
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Verified Purchase
C. Wong
Louisville, US
★★★★★ 1
DO NOT PURCHASE APPLECARE+ THROUGH AMAZON (Please read before making a decision)
Style Name: MacBook Air 13" (M4), Configuration: 3 years
I rarely write reviews like this, but DO NOT PURCHASE APPLECARE+ THROUGH AMAZON. Just over a month ago, I purchased an Apple MacBook Air (m4) with AppleCare+. The AppleCare+ wasn't populating on the laptop, so after calls with Apple Support and Apple Agreement Administration, they found that AMAZON sent them the approved agreement with the device serial number then abruptly canceled it the following day. This happened over a month ago, and I was not notified nor have I received a refund. I would not have known it was canceled if not for Apple Support and Apple Agreement Administration. The only recourse is to receive a refund from Amazon--which is NOT automatic, I am fighting for this--and purchase AppleCare+ directly through Apple. Had all this taken place after the 60-days purchasing the MacBook Air (I'm currently one week short of this deadline), then I would be SOL on being able to cover my device. PURCHASE AT YOUR OWN DISCRETION/RISK AND CHECK THAT APPLECARE+ IS APPROVED AND ACTIVE ON YOUR DEVICE. Otherwise, play it safe and activate directly through Apple.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
D
Verified Purchase
dsumling
Louisville, US
★★★★★ 5
Worked fine for me 🙌🏽
Style Name: MacBook Air 13" (M4), Configuration: 3 years
I read a lot of comments that said there was an issue with their purchase of AppleCare+, I did not have any of those experiences. AppleCare+ was on the laptop (MacBook Air, 13-inch 2025) automatically. I received an email with my confirmation of AppleCare+ coverage, along with my agreement number, product serial number and expiration date. There was nothing I needed to do on my end, because as I said it had already been added to my computer and attached to my iCloud account. — I hate that there are so many bad experiences and hope everything works out for anyone experiencing a nightmare but I can only recommend based on my experience, 10/10.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
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Ernestina N Sarmiento
San Leandro, US
★★★★★ 5
No la necesito
Style Name: MacBook Neo 13" (A18 Pro), Configuration: Monthly
Garantía digital , no la necesito no compré la laptop
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
M
Verified Purchase
Martin Walyor
Chelsea, US
★★★★★ 5
Fantastic product
Size: 8 Fl Oz (Pack of 1)
Works Great, at first didn't believe all the reviews, I've bought 5 chainsaws from one season to the next. After each winter couldn't get them to start. Followed the instructions to flush and let sit for a few days. Every one started and ran great. Hands down, this is a remarkable product for cleaning out blocked fuel systems from sitting all winter would recommend it for all 2 cycle engines and use the stable blend for winter as well as anytime use to prevent fuel spoilage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026

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