Drip/Leak/Flood, Temperature, Humidity, Vibration/Tamper detection

Best-in-class integrated 4-in-1 leak detector


Leak Detector

Helium Sensors

MerryIoT hub is required to get the sensors connected.

  • Years of battery life time
  • Press-and-play installation and no tools needed
  • Built-in alarm buzzer with min 80 dB
  • Easy to manage with MerryIoT app for both iOS and Android
  • Device movement/tilt/vibration/tamper notification
  • Signal coverage test button
  • Thousands ft.long range coverage between the hub and the sensor

MerryIoT Leak Detector


Don’t ever worry about leaks or floods in your basement, under your sinks, from your water heater, or anywhere else in the house.

The MerryIoT Water Leak Sensor will in real-time alert you the moment it comes in contact with leaking water.

You can also get readings of high and low humidity and temperature through the sensor.


Download The App

Google Play: Download Link

Apple App Store: Download Link

JS Decoder Github Link:

MerryIoT decoder for TTN:

Radio / Wireless

Frequency: EU 868 MHz; US 902~928 MHz

Antenna Gain: -2dBi Peak

RF Sensitivity: -135dBm

Protocol: LoRaWAN1.0.3

Power Supply

Battery Type: 1.5 V AA Alkaline x 2 pcs, 5400 mAh

(75Ω Cont. discharge)

Expected Battery Lifetime: 3 years

*Note: Battery life is mainly determined by the reporting frequency. Other factors include moisture and high temperature.

Average Current: 135mA max / 100uA min

Operating Conditions

Temperature: 0 to 50°C Outdoor & Indoor use (IP67 equivalent)


Water Sensing Probes

Temperature Sensor

• Measurement range: -40°C –125°C

• Accuracy: ±(1°C)

Humidity Sensor

• Measurement range: 0 %RH - 100 %RH

• Accuracy: ±5 %

Three-Axis Linear Accelerometer

• 3 sensitivity levels: High/Mid/Low

Mechanical Specifications

Dimensions: 70 mm x 25 mm x 70 mm

Weight: 120 g

Regulatory Certification

Type Approval: CE/FCC/IC