Bluetooth Water Tank Gauge
Overview
Know exactly how much fresh water you have left, without relying on float-style guesswork. This Bluetooth Water Tank Gauge uses your phone as the display and shows the remaining water in liters or gallons, giving van owners and other mobile users a simpler way to monitor water usage with more confidence. Designed by Topargee in Australia, this gauge is built for freshwater tank monitoring in vans, RVs, trailers, boats, and off-grid setups. It works with pressurized and gravity-fed systems, installs inline on the water line, and does not require anything to be drilled into the tank. If you prefer to use a mounted LCD screen instead of your phone, see the Flush Mount Water Tank Gauge page.
This gauge tracks water use from the programmed starting amount. After refilling the tank, the gauge must be reset so the stored total matches the amount of water in the tank.
Key Features
- Uses your phone as the display
- Inline sender installation, no tank drilling
- Shows remaining water in gallons or liters
- Bluetooth connection, no internet required
- Compatible with freshwater tanks only
- Works with pressurized and gravity-fed systems
- Programmable tank capacity
- Visual low water alerts in the app
- Low battery notification support
- Powered by 2 AA batteries or an optional 12V adapter (included in complete kit)
- 12-month warranty
Technical Specs
Technical Specs
| Spec | Details |
|---|---|
| Product Type | Bluetooth water tank gauge |
| Use | Freshwater tanks only |
| Display | Smartphone app |
| Screen on Gauge | No |
| Units | Liters or gallons |
| Connectivity | Bluetooth |
| Internet Required | No |
| Working Range | Approx. 16 ft |
| Operating Systems | iOS v10 or later, Android v8 or later |
| Power | 2 x AA batteries or optional 12V adapter |
| Sender Lead Included | 1.4 m |
| Extension Lead Option | Yes (3m) |
| Dimensions (WxDxH) | 2.72 x 1.57 x 2.76 in |
| Mounting | Bracket mount |
| Hose Connector Requirement | 2 x 1/2 in BSP female to 1/2 in NPT male adapters, or compatible plumbing fittings |
| Included Sender Fittings | Not included |
| 12V Adapter Included | No |
| Warranty | 12 months |
What Is Included
| Item | Included |
|---|---|
| Bluetooth gauge module | Yes |
| Sender unit | Yes |
| 1.4 m sender lead | Yes |
| Mounting bracket | Yes |
| Adhesive pad | Yes |
| AA batteries | TBD |
| 1/2 in BSP to 1/2 in NPT adapters | No, bundle dependent |
| 12V adapter | No, bundle dependent |
| 3 m extension lead | No, bundle dependent |
Resources and Downloads
Frequently Asked Questions (click to expand)
The sender installs inline on the water line and the gauge tracks water use from the programmed tank amount. Your phone displays the remaining water in liters or gallons through the Bluetooth app.
No. The gauge uses Bluetooth, so you can check water levels without an internet connection when you are within communication range.
Yes. After you refill the tank, reset the gauge so the stored total returns to the amount currently in the tank.
Yes, but you need to update the gauge total to match the amount of water currently in the tank so the count remains accurate.
Yes. The app remembers the device, and the gauge stores the settings and totals in the Bluetooth module.
Yes. It can run on 2 AA batteries or with the optional Topargee 12V adapter.
No. Do not wire 12V directly to the gauge. Use the correct 12V adapter.
For best results, install the sender about 200 mm after the pump and away from 90 degree elbows. If space is limited, it can be fitted before the pump.
No. The sender and extension leads should not be cut or joined. Use the proper extension lead if you need more length.
The sender has 1/2 in BSP male threads. Many customers use 1/2 in BSP female to 1/2 in NPT male adapters, or other compatible plumbing fittings that suit their hose and system.
California Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Original: $150.00
-65%$150.00
$52.50
Description
Overview
Know exactly how much fresh water you have left, without relying on float-style guesswork. This Bluetooth Water Tank Gauge uses your phone as the display and shows the remaining water in liters or gallons, giving van owners and other mobile users a simpler way to monitor water usage with more confidence. Designed by Topargee in Australia, this gauge is built for freshwater tank monitoring in vans, RVs, trailers, boats, and off-grid setups. It works with pressurized and gravity-fed systems, installs inline on the water line, and does not require anything to be drilled into the tank. If you prefer to use a mounted LCD screen instead of your phone, see the Flush Mount Water Tank Gauge page.
This gauge tracks water use from the programmed starting amount. After refilling the tank, the gauge must be reset so the stored total matches the amount of water in the tank.
Key Features
- Uses your phone as the display
- Inline sender installation, no tank drilling
- Shows remaining water in gallons or liters
- Bluetooth connection, no internet required
- Compatible with freshwater tanks only
- Works with pressurized and gravity-fed systems
- Programmable tank capacity
- Visual low water alerts in the app
- Low battery notification support
- Powered by 2 AA batteries or an optional 12V adapter (included in complete kit)
- 12-month warranty
Technical Specs
Technical Specs
| Spec | Details |
|---|---|
| Product Type | Bluetooth water tank gauge |
| Use | Freshwater tanks only |
| Display | Smartphone app |
| Screen on Gauge | No |
| Units | Liters or gallons |
| Connectivity | Bluetooth |
| Internet Required | No |
| Working Range | Approx. 16 ft |
| Operating Systems | iOS v10 or later, Android v8 or later |
| Power | 2 x AA batteries or optional 12V adapter |
| Sender Lead Included | 1.4 m |
| Extension Lead Option | Yes (3m) |
| Dimensions (WxDxH) | 2.72 x 1.57 x 2.76 in |
| Mounting | Bracket mount |
| Hose Connector Requirement | 2 x 1/2 in BSP female to 1/2 in NPT male adapters, or compatible plumbing fittings |
| Included Sender Fittings | Not included |
| 12V Adapter Included | No |
| Warranty | 12 months |
What Is Included
| Item | Included |
|---|---|
| Bluetooth gauge module | Yes |
| Sender unit | Yes |
| 1.4 m sender lead | Yes |
| Mounting bracket | Yes |
| Adhesive pad | Yes |
| AA batteries | TBD |
| 1/2 in BSP to 1/2 in NPT adapters | No, bundle dependent |
| 12V adapter | No, bundle dependent |
| 3 m extension lead | No, bundle dependent |
Resources and Downloads
Frequently Asked Questions (click to expand)
The sender installs inline on the water line and the gauge tracks water use from the programmed tank amount. Your phone displays the remaining water in liters or gallons through the Bluetooth app.
No. The gauge uses Bluetooth, so you can check water levels without an internet connection when you are within communication range.
Yes. After you refill the tank, reset the gauge so the stored total returns to the amount currently in the tank.
Yes, but you need to update the gauge total to match the amount of water currently in the tank so the count remains accurate.
Yes. The app remembers the device, and the gauge stores the settings and totals in the Bluetooth module.
Yes. It can run on 2 AA batteries or with the optional Topargee 12V adapter.
No. Do not wire 12V directly to the gauge. Use the correct 12V adapter.
For best results, install the sender about 200 mm after the pump and away from 90 degree elbows. If space is limited, it can be fitted before the pump.
No. The sender and extension leads should not be cut or joined. Use the proper extension lead if you need more length.
The sender has 1/2 in BSP male threads. Many customers use 1/2 in BSP female to 1/2 in NPT male adapters, or other compatible plumbing fittings that suit their hose and system.
California Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
