Products
Rain Gauge — measure rainfall on-site
Tipping-bucket rain gauge with 0.5 mm accuracy, 15-minute reporting and a heavy-rain alarm. Available as LoRaWAN and Wi-Fi variants — for irrigation control, early warning and fewer false alarms.
Also known as: Rain sensor · Precipitation meter · Tipping-bucket rain gauge · Smart-home rain sensor · Garden rain gauge
The rain gauge uses the well-proven tipping-bucket principle: rainwater is collected through a defined funnel and, at a fixed volume, tips a two-sided bucket whose motions are counted electronically. The result: a reliable rainfall measurement with a resolution of 0.5 mm water column, reported wirelessly every 15 minutes.
In addition to rainfall, the sensor measures ambient temperature. For heavy rain from 15 litres per hour (threshold configurable), it fires an alarm immediately — not just at the next scheduled reporting interval.
Power: up to two years without maintenance
Two AAA batteries power the sensor. Bundled cells are VARTA for the LoRaWAN variant and Bevigor Lithium for the Wi-Fi variant; both typically last around two years. Battery status is reported continuously — you replace the batteries in time, before reports stop.
For a detailed estimate of the expected runtime under different reporting intervals and ambient conditions, see our battery-life report:
Two connectivity options
- LoRaWAN variant (RANLWE01) — Class-A end-device that runs either on ambient LoRaWAN network coverage or on a dedicated gateway. Hardware and firmware for this variant are open source and available on GitHub.
- Wi-Fi variant (RANWIE01) — connects to Aqua-Scope Cloud services, supports iOS/Android apps and desktop access, speaks MQTT, and delivers raw data via JSON webhook straight to a smart-home gateway.
Typical use cases
- Irrigation control — automatic garden irrigation only runs when the previous days were dry.
- Heavy-rain warning — get notified proactively before basement window wells overflow or drains back up.
- Fewer false alarms — outdoor floor sensors get weighted differently when it's raining.
- Data for analysis — historical on-site rainfall records for insurers, facility management or agriculture.
Available variants
| SKU | Connectivity | Description | |
|---|---|---|---|
RANLWE01 | LoRaWAN | Class-A end-device, open-source hardware and firmware | View in shop |
 RANWIE01 | Wi-Fi | Cloud connectivity, app control, MQTT, JSON webhook | View in shop |