The Future of Lean, AI-Driven Hardware Excellence

Patented core technology, AI-driven operations & zero-defect manufacturing — from Hong Kong & Vancouver.

BVS · Custos Ubitech Limited · Hong Kong Founded 2013

Product Lineup

Patented actuators, sensors, gateways & OEM hardware — one platform.

BVS — AquaGuard ball-valve actuator
BVS
Retrofit automatic water shut-off for ball valves
Learn more ›
GVS — AquaGuard gate-valve actuator variant
GVS
Retrofit automatic water shut-off for gate valves
Learn more ›
Z-wave/Lora Gateway
Z-wave/Lora Gateway
Long-range LoRa hub connecting up to 250 devices to Wi-Fi & cloud, with built-in backup battery
Learn more ›
WWD — AquaSensor S1 original generation
WWD
Compact leak sensor with a built-in accelerometer
Learn more ›
WWD3 — AquaSensor S1
WWD3
Leak sensor with up to 10-year battery life
Learn more ›
SPC — Smart Backup Battery module
Smart Backup Battery (SPC)
Backup battery module for BVS
Learn more ›
ABC — battery pack for the BVS
ABC Battery Pack
ABC stands for Alkaline Battery Chamber, up to 10 years battery life.
Learn more ›

Accessories

Clamps, probes, power and mounting options for the BVS.

Big Clamps — 2-inch valve adapter kit
Big Clamps
2-inch valve adapter kit, including big clamps (pair) and big fork
Learn more ›
Horizontal Elbow — BVS mounting accessory
Horizontal Elbow
Mounting accessory for BVS on horizontal pipe elbows
Learn more ›
Vertical Elbow — BVS mounting accessory
Vertical Elbow
Mounting accessory for BVS on vertical pipe elbows
Learn more ›
Leak Probe — water-detection probe, 3 m
Leak Probe
Water-detection probe, 3 m
Learn more ›
A home left unattended while a leak goes undetected

Water Leak Solution

Water damage is the claim homeowners don't see coming.

27.6%
of homeowners insurance claims are water damage & freezing
US$13,954
average cost of a water-damage insurance claim
1 in 60
insured homes files a water-damage claim every year
>25% vs ~10%
lifetime chance of water-related loss vs fire damage for the average home

Source: Insurance Information Institute (Triple-I), homeowners claims data, 2018–2022

How the system works

1
Install
  • Clamps onto your existing valve — a retrofit, no pipe cutting
  • Ball valves use the BVS
  • Butterfly valves use the same BVS with a different transmission fork
  • Gate valves use the GVS
  • Standard clamps fit ½" to 1¼" pipes
  • For 1½" to 2" pipes, add the Big Clamps accessory
2
Detect
  • The leak sensor detects water the moment it appears
  • It sounds a siren immediately
  • It signals the valve actuator at once, over Z-Wave, LoRaWAN or UBILINK
3
Shut off
  • The valve actuator shuts off the water automatically
  • Signals travel over Z-Wave, LoRaWAN or UBILINK — long range and stable
  • No Wi-Fi needed
4
Notify
  • You get an alert on your phone right away
  • Control the valve from the app
  • Leak sensor + valve actuator + phone app
  • Integrates with your existing Z-Wave / LoRaWAN system

The BVS

The Best Smart Valve on the Market

A valve actuator designed to retrofit into the building you already manage — and to keep working long after it is installed.

No tools. No plumber.

Clamps over the valve that is already on the line.

  • Nothing is cut and nothing is drained — no pipe cutting, no soldering
  • Installs in an occupied unit during normal hours, with no shutdown
  • The install is fully reversible
  • The retrofit design greatly reduces installation cost, unit after unit

Up to 10 years of battery life. No outlet needed.

No outlet. No wiring. Fit the ABC battery pack and the BVS runs on its own.

  • Up to 10 years of battery life from six C-cell alkaline batteries
  • The BVS senses the power source and switches to battery mode by itself
  • Up to 8 N·m of torque on the battery pack — a typical home valve needs 1.5–2 N·m
  • Bench-tested at 2,098 valve turns on one pack, against a 6 N·m load
The ABC battery pack that powers the BVS

Fits everywhere

One BVS, every pipe.

Both clamps slide along the body, from 64 to 124 mm (2.5" to 4.9") — so one BVS fits ½" to 1¼" ball valves with no extra parts
Two elbow accessories for valves beside a pipe bend — horizontal and vertical — and Big Clamps for pipes up to 2"
  • Sliding clamps — no extra parts for ½" to 1¼" ball valves
  • Horizontal Elbow and Vertical Elbow — for valves right next to a bend
  • Big Clamps — for 1½" to 2" pipes
  • Ball valves use the BVS, butterfly valves use the same BVS with a different transmission fork, and gate valves use the GVS

Torque that holds up

Same test rig, same procedure.

Competitor
Passes 1.75 N·m, fails at 3 N·m, and shifts off-axis at 5 N·m — loading the pipe joint itself
BVS
Stays aligned and passes 5 N·m, then 6 N·m — double the 3 N·m where the competitor failed
10 N·mmax on the power adapter
8 N·mmax on the battery pack
1.5–2 N·mwhat a typical home valve needs

Patented adaptive torque control applies only the force each valve needs. Bench test against a single-sided, pipe-mounted competitor.

Waterproof and sun-proof

Built for the places a valve actually lives.

IP66 ASA housing — water poured straight over it, every connection sealed
UV resistant — built for sunlight, moisture and changing temperatures
  • IP66-rated ASA housing — every connection is sealed against moisture
  • UV resistant, with thermal shielding — keeps working in hot and cold conditions
  • For garages, crawlspaces and outdoor installs

Vandalism Protection

The detachable knob design prevents the device from being removed or stolen when installed outdoors.

  • The clamp knobs come off after installation
  • Without the knobs, the clamps can’t be loosened by hand — the valve can’t simply be unclamped and carried away
  • Put the knobs back whenever the valve needs adjusting or removing
The clamp knobs detaching from the BVS clamps

Inside the BVS

The parts that make it work.

The BVS valve actuator IP66 ASA housing Detachable knobs Sliding clamps Patented torque-controlled powertrain Delrin transmission fork
A property manager on site at a multi-unit residential building, checking the app on a phone

Why choose us?

For Property Managers

Water protection for multi-unit properties

01

The only retrofit design approved by insurers

Recognized by HSB, JCI and Alarm.com

  • Clamps onto the valve you already have — no pipe cutting
  • The retrofit design greatly reduces installation cost, unit after unit
02

A dashboard for you. An app for every resident.

  • Something goes wrong? The valve shuts off automatically
  • Shut off or reopen any valve remotely, from the app or the dashboard
  • Saves a lot of manpower — no one has to drive out to close a valve

Property manager

The property manager web dashboard: detected leaks, fires, offline alerts and a live event list
Manager app: notification overview with counts for fires, water leaks and freeze
Manager app: device list for one floor

Web dashboard and manager app — every property, every unit

End user

Resident app: all devices in the home
All devices at a glance
Resident app: leak detected, valve safely closed
Leak detected — valve closed
Resident app: remote valve control with flow and shut buttons
Remote valve control
03

Lower the insurance premium on your properties*

Carriers publish discounts of up to 15%* for automatic water shutoff

  • Automatic shutoff turns a water claim into a non-event
  • A Water Leak Protection Certificate you can share with your insurance agent
Clients reviewing insurance documents at a laptop, with a notification offering up to 15% off the home insurance premium

*Savings are not guaranteed. The up-to-15% figure reflects automatic water shutoff discounts published by major carriers; actual discounts vary by carrier, state or province, and policy.

Detect the leak, shut off the water

Integrate into your LoRaWAN / Z-Wave system instantly

One IoT Company, Three Connectivity Solutions

We build for the protocol your customers already use — and for the one that comes next.

Z-Wave

Z-Wave and Z-Wave Long Range water valve actuators for smart-home hubs, built to be sold under partner brands.

LoRaWAN

Our LoRaWAN solutions connect an even larger number of devices across long distances, for properties and deployments that outgrow a single hub.

UBILINK

Our patented interoperability framework: devices describe themselves during pairing, so new and custom devices work without predefined profiles. Running on LoRa, one gateway connects up to 250 devices to Wi-Fi and the cloud, with a built-in backup battery. Free to use and already in commercial products.

From Idea to Product on the Shelf

One partner, start to finish: Ubitech designs, patents, certifies, builds and tests connected products for partner brands — all the way to white-label hardware ready to sell.

First concept
Hardware design
Firmware & software
Cloud & app
Patent filing
Certification
Manufacturing
Production testing
Ready to sell
Hardware Design

In-house electrical and mechanical engineering teams in Hong Kong, backed by our own patented actuator and sensor designs.

Firmware & Software

Custom firmware and software built by our teams in Vancouver and Hong Kong, with UBILINK for fast, profile-free device interoperability.

Cloud & App

Sylver-Lining, our cloud platform, handles device management, remote control, events and cloud-to-cloud integration for your product.

Patent Filing

We help you apply for patents on your design, backed by our own portfolio of issued U.S. patents.

Certification

We take your product through the certifications your target markets require — including Z-Wave certification, FCC, ISED (Canada) and IP waterproof ratings.

Manufacturing & Supply Chain

A dedicated supply-chain team and partner factories take your design into production, with white-label hardware and custom firmware available.

Production Testing

Factory test firmware and procedures built in, so the production line can run hardware checks on each unit before it ships.

Start a Project With Us