WaterGuard Level shows.
WaterGuard Refill acts.
Both measure the fill level by water pressure and show it in the app. Refill can also switch valves and monitor the filter.

WaterGuard Level or Refill?
Refill has two switching outputs for valves and filter monitoring. Level only measures and reports. Otherwise both are identical.

WaterGuard Level
€299RRP incl. VATPrice informationMeasure, display and report the fill level.
- —Pressure sensor, LED ring, Wi-Fi, LAN
- —USB-C power supply 5 V
- —App, cloud, Home Assistant
- ×No switching outputs, no Filter Control

WaterGuard Refill
€349RRP incl. VATPrice informationEverything in Level – plus two switching outputs and filter monitoring.
- +2 switching outputs 24 V DC – refill, AquaStop
- +Filter Control – input for the float switch
- +Easy valve wiring thanks to WAGO terminals
Level and Refill in detail
The price difference comes from the board: Refill has relays, terminals and a stronger power supply.
| Feature | Level | Refill |
|---|---|---|
| Fill level in %, litres, fill height | ||
| Switching outputs | 2 × 24 V DC, max. 0.5 A | |
| Power supply | 5 V DC via USB-C | 24 V DC |
| Control refill / AquaStop | ||
| Filter Control (float switch) | ||
| Wi-Fi 2.4 GHz, LAN, Home Assistant | ||
| App iOS/Android, cloud, firmware updates |

Large LED ring on the device
Day to day, two signals are enough: the blue bars for the fill level and red for a fault. Every other pattern is in the manual – tap through them here.
Fixed price, no subscription
App and cloud features included at purchase remain free of additional usage fees for the device’s lifetime. See the terms for updates and optional additional features.
Recommended retail prices including VAT. Actual selling prices and shipping costs are set by each retailer.
Legal guarantee: EU consumer information
Before purchase and installation: Approved countries · Terms of use for private customers · Manufacturer & WEEE
The app and automations are assistance features. Required physical safeguards for your system, such as mechanical overflow protection, remain necessary. Safety information and usage limits