FLOLWE01 – Flood Sensor (LoRaWAN)
Product Description
The flood sensor detects the presence of water at its three brass telescopic pins and sends an alarm message via LoRaWAN when triggered. The telescopic pins detect water on both hard floors (tiles) and soft carpets. Additionally, the device continuously measures temperature and humidity. When an alarm is triggered, an audible signal sounds and the red LED blinks.
An optional flat sensor pad can be connected via cable to enable water detection at a separate location (e.g., wall or floor mounting with bracket).
Key Features:
- Water, temperature, and humidity sensor
- Three brass telescopic pins for hard floors and soft carpets
- Bracket for wall/floor mounting with external sensor pad (IP67)
- LoRaWAN Class A, OTAA (EU868)
- CR123 battery (approx. 5 years operating life)
- Operating temperature: -40 °C to +85 °C
- Protection rating: IP54 (main unit), IP67 (sensor pad)
For direct pairing with the Aqua-Scope Monitor, use FLOLWE02.
Installation
Inserting the Battery
- Turn the top of the housing counterclockwise to open it
- Insert the CR123 battery into the holder (observe polarity!)
- LEDs blink red/green → LoRaWAN JOIN attempt (approx. 25 seconds)
- 3× green = connection successful, 3× red = connection failed
- Close the housing with a 1/8 clockwise turn
Placement Options
- Directly on the floor: The device can be placed directly on the floor without accessories. The telescopic pins detect water on the surface.
- In bracket mount: The bracket is attached to the wall or floor using a 3M adhesive pad or the included screws. The sensor pad is connected via cable to the socket on the bracket.
Measurement Cycle
- Flood check: continuous (always active)
- Temperature/Humidity: every 15 minutes (parameter #4, default: 900 seconds)
- Status report: on change > 0.5 °C temperature or > 5% humidity
- Heartbeat: every 6 hours (parameter #2, default: 24 measurement intervals)
Function Button
You can verify functionality by pressing the button. An audible signal sounds, the LED lights up, and a status packet is sent.
LoRaWAN Communication
See LoRaWAN Connection for setup, keys, JOIN/Rejoin, and the complete Daisychain Protocol.
Supported Sensor Types
| ID | Sensor | Unit |
|---|---|---|
0x01 | Temperature | 1/10 °C (two's complement) |
0x02 | Humidity | %RH |
0x03 | Operating Time | Hours since last restart |
Alarm Types
| ID | Alarm | Description |
|---|---|---|
| 1 | Water sensor triggered | Water detected at the sensor pins |
| 2 | Temperature out of range | Reports the current temperature value |
| 3 | Humidity out of range | Reports the current humidity value |
| 12 | Low battery | Battery nearly depleted |
Configuration Parameters
All configuration parameters are 16-bit values.
| No. | Parameter | Default | Description |
|---|---|---|---|
| 2 | Heartbeat | 24 | × measurement interval = 6 h |
| 3 | Temp. unit | 0 | Celsius (0) / Fahrenheit (1) |
| 4 | Measurement interval | 900 | Seconds (15 min) |
| 5 | Confirmed | 0 | Confirmed (1) / Unconfirmed (0) |
| 6 | Temp. change threshold | 5 | 0.5 °C (in 1/10 °C) |
| 7 | Humidity change threshold | 5 | 5% |
| 8 | Temp. upper limit | 300 | 30.0 °C |
| 9 | Humidity upper limit | 90 | 90% |
| 10 | Temp. lower limit | 0xFF38 | -20.0 °C |
| 11 | Humidity lower limit | 10 | 10% |
Scope of Delivery
- Sensor (main unit)
- Mounting base (bracket)
- 1× CR123 battery
- 1× external cable sensor head
- 2× screws and wall plugs
- Manual
Technical Specifications
| Parameter | Value |
|---|---|
| SKU | FLOLWE01 |
| Platform | STM32WLE5CCU6 |
| LoRaWAN | v1.0.3, Class A, EU868, OTAA |
| Frequency | 868–869 MHz, 4 dBm (2.5 mW) |
| Range | >2 km (TX 22 dB) |
| Battery | CR123 |
| Protection Rating | IP54 (main unit), IP67 (sensor pad) |
| Sensor Pad | 7 mm high, cable 110 mm (audio coaxial) |
| Operating Temperature | -40 °C to +85 °C |
| Storage Temperature | -65 °C to +125 °C |
| Humidity | 0–90% RH |
| Dimensions | 65 × 65 × 32 mm |
| Weight | 90 g (without battery) |