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Products >YO H2O
LoRaWAN Helium
Enclosure type • IP54
Band • EU868, US915, AU915, AS923
light grey
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YO H2O is used for instant flood detection. It also transmits temperature and humidity data and its own position on the x, y, and z axes (via a built-in accelerometer).

On detecting a leak, the device immediately alerts the system about the risk of flooding. Simultaneously, the leak is indicated by a colour-changing LED.

The device’s watertight enclosure is designed for both horizontal and vertical mounting.

YO H2O is a small device operating over LoRaWAN. We are a member of the LoRa Alliance, which is responsible for data transmission security.

Key features

  • Instant flood detection
  • Data transmission over distances of more than 3 km over LoRaWAN in medium-density urban spaces
  • Small size – only 4.7 cm in diameter!
  • Battery-powered
  • IP54 protected enclosure
  • Supported LoRaWAN network type: private or public and connection over ABP or OTAA
  • ISM band selectable for regional needs (EU868, US915, AU915, and AS923)
  • Configuration via Bluetooth Low Energy 5.0
  • Firmware update over BLE
  • Yosensi Configuration Web Tool for convenient firmware updates and device configuration
  • Wide network coverage, low energy consumption
  • High-quality product made in EU

Sample charts of collected data



Tx Power: • LoRa EU868: to +14 [dBm]
• LoRa US915, AU915, AS923: to +22 [dBm]
• Bluetooth Low Energy (BLE): -20 to +6 [dBm]
Power supply: • Battery CR2450 3V
Power consumption: • Maximum: 110mA DC (3V DC)
General information: • RGBW diode signals flood detection
Weight: • 25g (with battery)


Dimensions: • Diameter: 47 mm
• Height: 13 mm
Colour: • Light gray
• Black
Enclosure material: Plastic - ABS
Level of protection: IP54
Ø 47 mm 13 mm

Sensors Measuring range

Flood detection:

Measuring range: 0–dry, 1–flood detected


Measuring range: −40°C to 125°C (-40°F to 257°F)
Accuracy: ±0.2°C (32.36°F) (at temperatures from 5°C to 60°C (41°F to 140°F))

Relative humidity:

Measuring range: 0% to 100%
Accuracy: ±2% (at 20% to 80% RH)


Measuring range: ±180° on x, y, z axes
Accuracy: ±0.1° (at temperatures from −40°C to 85°C (-40°F to 185°F))


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