Data Acquisition & Logging

Wireless Water Detection Puck Sensors

The ALTA Wireless Water Detection Puck Sensor detects the presence or non-presence of water

The ALTA Wireless Water Detection Puck Sensor detects the presence or non-presence of water. Convenient water tight puck design allows the sensor to be placed anywhere needed whether dry or wet. Note that water levels must be ~ 3mm deep to trigger detection.


Water Detection

• Water proof/fully submersible.

• Immediately detects water presence.


Principle of Operation

The ALTA Wireless Water Detection Puck Sensor detects when water is present by completing the circuit between the two probe points on the bottom of the puck sensor. When water is present the sensor will immediately turn on the radio and transmit the data to the wireless gateway and iMonnit Online Sensor Monitoring and Notification System, allowing the user to immediately receive an SMS text or email alert. The sensor can be configured to detect both the presence and non-presence of water.

Features of Monnit ALTA Sensors

• Wireless range of 1,200+ feet through 12+ walls *

• Frequency-Hopping Spread Spectrum (FHSS)

• Improved interference immunity

• Improved power management for longer battery life **(12+ years on AA batteries)

• Encrypt-RF® Security (Diffie-Hellman Key Exchange+AES-128 CBC for sensor data messages)

• Onboard data memory stores up to 512 readings per sensor:

     - 10-minute heartbeats = 3.5 days

     - 2-hour heartbeats = 42 days

• Over-the-air updates (future proof)

• Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email

*Actual range may vary depending on environment.

**Battery life is determined by sensor reporting frequency and other variables. Other power options are also available.

ALTA Commercial Wireless Water Detection Puck Sensor | Technical Specifications

Electronics supply voltage     2.0–3.8 VDC
Current consumption     0.2 µA (sleep mode), 0.7 µA (RTC sleep), 570 µA (MCU idle),
          2.5 mA (MCU active), 5.5 mA (radio RX mode), 22.6 mA
          (radio TX mode)
Max operating temperature range     -18°C to 55°C (0°F to 130°F) *
Optimal temperature range     +10°C to +50°C (+50°F to +122°F)
Dimensions     75mm x 25mm x 30mm
Water Protection     Completely sealed, water proof, fully submersible
Battery     3.6V 1200 mAh Lithium (non-replaceable)
Typical battery life     12+ years **
Integrated memory     Up to 512 sensor messages
Wireless range     1,200+ ft non-line-of-sight
Security     Encrypt-RF® (256-bit key exchange and AES-128 CTR)
Weight     7.6 ounces

• Water heater tank leak monitoring

• Plumbing leak detection.

• Data center subfloor water detection.

• Water intrusion/flood detection.

• Crawl space water intrusion monitoring

• Reservoir/tank level monitoring

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