Official Dahua DPP partner. Learn more

AJAX  |  SKU: AJAX#62605

AJAX WaterStop 3/4'' (DN20)

 SpyMonkey B2B 

For pricing details please submit a request for installation/quote.
For other inquiries, please email us at

 Send us an Email 
 Fill out a Quote Form 
 Talk to us via Phone 
 Chat with us via Live Chat 

Request Quote
Colour: Black

Experienced Security Specialists

Our company is backed by an experienced team who are dedicated to providing you with top-notch expertise and guidance.

FREE Fast Shipping

FREE SHIPPING over $200! Everyday Australia Wide.

We use the fastest Express Courier shipping available.

A flat rate of $20 applies to orders under $200 in value.

Orders are processed: Monday – Friday from 8am – 5pm.

Shipping Times: Typically 1 - 3 business days or less. We can reach pretty much reach anywhere in Australia in less than 5 Business Days. 

(Public Holidays Excluded)

Please Note: As we use courier shipping, we cannot ship to PO Boxes. 

Order Confirmation: After placing an order, you will receive an order confirmation by email. This means we’ve received your order in our system and will now process it for dispatch. If your item is back-ordered or otherwise unavailable, we will inform you by email and if there is no response we will attempt to contact you be phone as soon as possible. We value your time so we endeavour to be prompt. If your item(s) are available for immediate shipment (within 2 days), we will process the charges and submit the order for shipment.

Tracking Numbers will be sent to your email once your order has shipped. Our order are picked up by couriers around 4pm - 4.30pm every afternoon.

In some cases, we may need to contact you before your order can be shipped. To ensure there is no delay, please respond to any email/phone call from our Customer Service team.

We proudly use the following Shipping Companies. Star Track, Couriers Please and Direct Freight Express.

14-day Money Back Guarantee

We stand behind the quality and effectiveness of our security cameras. If for any reason you're not completely satisfied with your purchase, we offer a hassle-free 14-day money back guarantee. Your satisfaction is our priority, and we want you to feel confident in your decision to choose us.

Click here to learn more: Spy Monkey Returns

Above and Beyond Service

Our commitment to exceptional customer service goes beyond simply selling security cameras. Our knowledgeable and friendly team are ready to assist you throughout your entire experience.

As an authorised dealer, we offer genuine security cameras. Our Australian stock ensures authenticity and reliability, backed by manufacturer warranties. Trust us for quality and peace of mind.


WaterStop Jeweller is a smart water shutoff valve. Operates as part of an automated water leak prevention system. Controls it in Ajax apps, through a button on the enclosure, a lever on a shutoff valve, as well as automation scenarios.

WaterStop communicates with the hub using an encrypted Jeweller radio protocol. The communication range without obstacles is up to 1,100 meters.

Runs on pre-installed batteries for up to three years. It can also be powered by a third-party power supply unit with 7.5–14 V⎓ and operating current of at least 1.8 A.


  • Water shut-off in 5 seconds
  • Protected on every level
  • One-stop solid brassware
  • Installation without any construction involved
  • Stable performance for years
  • Unique wireless technologies
  • Scaled and comprehensive
  • All data at a glance
  • Full monitoring for the building
  • Advanced automation for greater safety
  • Sabotage-resistant

Complete Set 

  • WaterStop Jeweller.
  • CR123A batteries (pre-installed) — 4 pcs.
  • DN15 (½”), DN20 (¾”), or DN25 (1″) RuB shutoff valve (depends on the selected kit).
  • Two mounting lockers: standard (pre-installed) and anti-sabotage.
  • Sealing nut.
  • Quick start guide.

More info about WaterStop on Ajax website:



Tech specs

Hubs Hub Plus
Hub 2 (2G)
Hub 2 (4G)
Hub 2 Plus
Hub Hybrid (2G)
Hub Hybrid (4G)
Radio signal range extenders ReX
ReX 2

Jeweller communication technology

Proprietary wireless technology for events transmission.

Two-way communication.
Protection against device spoofing.
Block encryption featuring a floating key.
Instant notifications.
Remote configuration via Ajax apps.

Radio frequency bands

866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz

Depends on the region of sale.

Maximum effective radiated power (ERP)

up to 20 mW

Automatic power adjustment to reduce power consumption and the effect of radio interference.

Radio signal modulation GFSK
Radio communication range

up to 1,100 m

Between device and hub (or radio signal range extender) without obstacles.

Calculate the radio signal range at the object

Radio signal encryption Block encryption with a floating key protects all the data stored and transmitted.
Frequency hopping Prevents radio interference and jamming.
Operating components
Shutoff valve ½" (DN 15), ¾" (DN 20), or 1" (DN 25) RuB valve included in complete set.
Electric actuator Opens or closes the valve.
Mounting platform To install an electric actuator on a shutoff valve.
Mounting lockers

To fix an electric actuator on a shutoff valve.

The complete set includes two options:
standard (pre-installed)

Water shut-off (shutoff valve)
Fields of application water supply and heating systems
Operating fluid hot and cold water, non-aggressive liquids
Material brass
Connection type and thread

BSP parallel (EN 10226-1, ISO 228), female-to-female threads

Thread size:
½" (DN 15, 15 mm)
¾" (DN 20, 20 mm)
1" (DN 25, 25 mm)

Operating liquid temperature range

from –20 °C to +170 °C

Freezing of the fluid in the pipeline may severely damage the valve and electric actuator.

Mounting platform

to mount an electric actuator on a shutoff valve

Complies with the ISO 5211 standard.

Lever on mounting platform

To manually shut off the water supply without tools in case of emergencies.

2 Years Warranty

Ajax’s 2-year manufacturer warranty covers defects in materials or errors in the manufacturing process that may occur within 24 months from the date of sale. The warranty does not cover normal wear and tear (device body scrapes, scratches, etc.), wear of the elements caused by improper operation, and normal wear of the device components, mechanical and/or electrical damage (including latent), exposure to direct sunlight, high humidity, and vibration or damage caused by natural disasters.

The warranty does not cover damage to the product resulting from unauthorised repair, installation, and/or replacement of components or programs, including the installation of updates and extensions, performed by anyone other than an authorised representative of the Limited Liability Company “Ajax Systems Manufacturing”.

If a device is faulty, Spy Monkey Surveillance will facilitate the warranty process with the manufacturer for you. We aim to do so in a manner that is as fast and efficient as possible.

Please contact our support team at or 1300-049-519.

Please note, that we do not cover inbound shipping of the return to us however if a replacement is to be sent we will cover outbound shipping to the customer. We will need the serial number of the product and your order number.

Please don’t ship us anything until you have had confirmation from our teams and they have given you an RMA number and return address.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Customer Reviews

Be the first to write a review