jundra DampWatch
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A basement plant room with a blue pump on a concrete plinth and a floor drain. Two small white leak sensors sit on the floor beside the plinth, a humidity sensor is fixed to the block wall, and a white gateway with a short antenna is mounted on the far wall beside a power point. A damp patch spreads across the floor in front.
Concept render. DampWatch is in development.
In development

Leak and damp alerts for your building’s common property.

Wireless leak and humidity sensors, with alerts and a monthly damp report. In development, and designed to help you find a leak or slow damp in the basement, plant room, risers, podium or roof outlets sooner, before it shows up as damage. DampWatch only notifies you: it doesn’t shut anything off or send trades.

For NSW strata managing agencies and owners corporations, starting with one building.

Book a 20-minute problem callHow it works
01 / DampWatch

The problem

  • Water in common property is usually found late: a stain on a car-park ceiling, a damp smell in a riser, a pump room with water on the floor.
  • By then it is hard to tell when it started or where it came from, and there is no time-stamped record to show the committee or a builder.
  • Most leak detectors are sold for inside apartments. Basements, plant rooms, risers, podiums and roof outlets usually have nothing watching them.
  • Building Commission NSW’s 2025 strata defects research, which surveyed Class 2 strata buildings of four or more storeys registered from July 2018 to June 2024, found serious defects in 53% of them, and waterproofing defects were the most common type.
A basement storeroom under a concrete slab with a faint water stain. A thin grey rope leak sensor runs along the base of a block wall marked by a damp tide line, connected to a small white sensor box with a blue square and a green light. A stack of tiles and a ladder stand at the far end.
A rope leak sensor along the base of a basement wall under the podium slab, where water from above often shows first. Concept render.

Source: Building Commission NSW, 2025 strata defects research.

02 / DampWatch

How it works

DampWatch is in development. Everything below describes what it is designed to do.

DampWatch is a kit of small, battery-powered wireless sensors for the common property of a strata building. Spot leak sensors (and rope sensors where needed) sit on the floor where water collects: plant rooms, pump pits, basement drains, and below podium and roof outlets. Humidity sensors go in risers, basements and other enclosed spaces. A 4G gateway plugs into a spare power point (if there isn’t one nearby, a licensed electrician may need to add one) and sends the readings to the DampWatch software, so the building’s own network isn’t needed. The software alerts you when a leak sensor gets wet, learns each spot’s normal humidity, and flags a slow rise that could be damp. Every month the committee gets a one-page damp report.

  1. Step 1: Fit it

    We fit the leak and humidity sensors with adhesive mounts in agreed common-property spots, and plug the gateway into a spare power point. Nothing goes inside apartments, and nothing is wired into the building’s plumbing. If there’s no spare power point near the gateway spot, a licensed electrician may need to add one.

  2. Step 2: Learn

    In its first week it records each spot’s normal humidity, and you get a short baseline note on what we fitted and where. From then on it is designed to compare each spot with its own normal.

  3. Step 3: Notify

    When a leak sensor gets wet, it alerts you by email and in the app. A slow rise in humidity is flagged in the app and the monthly report. You decide what to do and arrange the trades; DampWatch only notifies.

How DampWatch is designed to work. A section through a strata building: battery leak sensors on floors and near drain outlets on the roof and podium, and in the basement plant room (1); battery humidity sensors in the risers and basement (2); and one mains-powered 4G gateway (3). All sensors are in common property only; there are none in apartments. Sensors report by low-power radio to the gateway, which sends readings over 4G to the software. The software learns each spot’s normal humidity. A phone alert reads: B2 plant room leak: water detected, the leak sensor has been wet since 6:42 am, you arrange the plumber. The example chart shows humidity in the B2 plant room rising above its normal range, marked as a slow rise flagged. A monthly report goes to the strata committee. IN THE COMMON PROPERTY SOFTWARE AND ALERTS Apartments: no sensors riser ground B1 B2 plant Common property only 1 1 1 2 3 1 Leak sensors spot or rope, at floors and outlets 2 Humidity sensors risers, basements, plant rooms 3 4G gateway one per building, mains power 4G Software learns each spot’s normal humidity Monthly report for the committee B2 PLANT · LEAK Water detected Leak sensor wet since 6:42 am. You arrange the plumber. HUMIDITY · B2 PLANT ROOM 30 days Slow rise flagged normal range for this spot this month
How DampWatch is designed to work. A section through a strata building: battery leak sensors on floors and near drain outlets on the roof and podium, and in the basement plant room (1); battery humidity sensors in the risers and basement (2); and one mains-powered 4G gateway (3). All sensors are in common property only; there are none in apartments. Sensors report by low-power radio to the gateway, which sends readings over 4G to the software. The software learns each spot’s normal humidity. A phone alert reads: B2 plant room leak: water detected, the leak sensor has been wet since 6:42 am, you arrange the plumber. The example chart shows humidity in the B2 plant room rising above its normal range, marked as a slow rise flagged. A monthly report goes to the strata committee. IN THE COMMON PROPERTY Apartments: no sensors 1 1 1 2 3 Common property only 1 Leak sensors spot or rope, at floors and outlets 2 Humidity sensors risers, basements, plant rooms 3 4G gateway one per building, mains power SOFTWARE AND ALERTS 4G Software learns each spot’s normal humidity B2 PLANT · LEAK Water detected Leak sensor wet since 6:42 am. You arrange the plumber. Monthly report for the committee HUMIDITY · B2 PLANT ROOM 30 days Slow rise flagged normal range for this spot this month
How DampWatch is designed to work. Illustration, not to scale; the chart is an example, not real data.

What it measures

Two kinds of sensor, in common property only.

Four white devices on a pale grey surface: a round leak sensor, a small box with a coiled grey rope sensor, a vented humidity sensor and a larger gateway with a short black antenna, each with a small blue square.
The DampWatch kit: spot leak sensor, rope leak sensor, humidity sensor and 4G gateway. Concept render.

  1. 1. Water on the floor

    Spot leak sensors, and rope leak sensors where needed, detect water where it collects: beside pumps and tanks, in pump pits, at basement drains and below podium and roof outlets. A wet sensor sends an alert.

  2. 2. Humidity and temperature

    Humidity sensors in risers, basements and other enclosed spaces record humidity and temperature through the day, so a slow rise against that spot’s normal shows up in the report.

  3. 3. Sensor health

    Each sensor reports its battery level and last check-in, so a sensor that goes quiet shows up too.

What it doesn’t do: there are no sensors inside apartments, it can’t shut off water or power, and it doesn’t send plumbers or other trades. It isn’t an emergency or security monitoring service.

A strata manager at a desk by a window, working on a laptop that shows a DampWatch “October report” with a grid of spots shaded by damp risk, a humidity line rising above its normal band, a summary and a list of events.
The monthly damp report, with example data. Concept render.
03 / DampWatch

What you get

  • A DampWatch kit for the building’s common property: spot leak sensors (rope sensors where needed) and humidity sensors in agreed spots, and a 4G gateway, fitted by us.
  • Leak alerts by email and in the app when a sensor gets wet, to the people you nominate.
  • A live view of every sensor on your phone or computer.
  • A first-week baseline note, and a one-page monthly damp report for the committee: where it’s damp, what changed, events and suggested next steps.
  • A time-stamped record of readings and alerts for each spot.
04 / DampWatch

Founding pricing

We’re looking for a small number of founding buildings in Sydney.

No payment now. Booking a call is free and non-binding. No payment is requested or taken on this page, and a pilot starts only once we have confirmed compliant sensors and agreed the scope and terms with you in writing.

Founding building price
A$1,500+ GST install per building (A$1,650 incl. GST)
  • Then A$149 + GST a month per building (A$163.90 incl. GST). That’s about A$5 per apartment a month in a 30-lot building.
  • The install and monthly fee cover the kit, fitting, alerts and the monthly damp report for one building. The sensors and gateway stay Jundra’s.
  • 3-month pilot, paid from month 1.
  • Larger or multi-basement buildings may need extra sensors or a second gateway. We confirm the kit for your building on the call.
  • After the pilot: month to month, with 30 days’ notice to stop.
  • The pilot starts only when the named hardware and alerts are ready to supply.

Prices are in Australian dollars. Full terms are set out in a short written pilot agreement before you start.

Book a 20-minute problem call
05 / DampWatch

Why Jundra

  • Jundra is a Sydney software and industrial-IoT company, founded in 2008.
  • We have years of industrial IoT sensing and condition-monitoring work, with real-time data collection from field devices, dashboards and alerts.
  • We started our own sensor R&D in December 2024 and have built working sensor prototypes since February 2025.
  • Built by Jundra: DampWatch starts from off-the-shelf wireless sensors (Australian compliance to be confirmed before any pilot), with the sensor design and prototyping experience we offer to clients behind the installation and data, and AI and knowledge systems where they help, such as drafting the monthly report.
06 / DampWatch

Book a 20-minute problem call

Tell us about a building where water has caused trouble, or where you’d like an earlier warning. It’s a 20-minute call about the problem, not a sales pitch.

Prefer plain email? Write to admin@jundra.com and we’ll find a time.

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