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  • Monnit Wireless Liquid Level Sensors - 8 Inch - Commercial AA Battery Powered
Monnit Wireless Liquid Level Sensors - 8 Inch - Commercial AA Battery Powered

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Monnit wireless liquid level sensors use a solid-state, resistance sensitive ribbon sensor to measure the level of a liquid in a container. Why deal with mechanical floats that get stuck and corrode in the fluid you are measuring? Get accurate results without the hassle. User customization allows you to set the frequency of sensor readings and the ability to set thresholds for notifications and alerts from the iMonnit online sensor monitoring system.

The standard version of this sensor is powered by two replaceable 1.5 V AA sized batteries (included with purchase). This sensor is also available with a line power option. The line powered version of this sensor has a barrel power connector allowing it to be powered by a standard 3.0 - 3.6 V power supply (Included with Line Power option upgrade). The line powered version also uses two standard 1.5 V AA batteries as backup for uninterrupted operation in the event of line power outage.

Power options must be selected at time of purchase, as the internal hardware of the sensor must be changed to support the selected power requirements.


  • Detects level of water or liquid in a container.

  * Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.

Data Snapshot

Wireless Liquid Level Sensors - Data View in Software

In the Box

  • Wireless Sensor
  • Mounting Hardware
  • 2 x AA Batteries

Flex Sensor Element Specifications

Sensor Length 8 in. = 8.1” (205.74mm)
24 in. = 24.1” (612.14mm)
Sensor Width 1.0” (25.4mm)
Sensor Thickness 0.015” (0.381mm)
Active Sensor Length 8 in. = 8.6” (218.4mm)
24 in. = 22.6” (218.4mm)
Resolution 1/32 inch (0.794mm)
Actuation Depth Nominal 1 inch (25.4mm)
Sensor Material Polyethylene Terephthalate (PET)
Weight 3.7 oz.

AA Specifications

Battery Type 2 Replaceable AA 1.5 V Batteries
Dimension 4.375 in x 2.470 in x 1.12 in
Sensing Element 2.0 - 3.6 V (2 x AA 1.5V Batteries or Optional Power Supply)
Device Range 250 - 300 ft. non-line-of-sight device range*
Battery Life At 1 hour heartbeat setting, included AA batteries will typically last 3-4 Years. **
Max Operating Temperature Using AA Alkaline -18°C to 55°C (0°F to 130°F)
Max Operating Temperature Using AA Lithium -40°C to 60°C (-40°F to 140°F)
Optimal Battery Operating Temperature +10°C to +50°C (+50°F to +122°F)
Enclosure Material ABS

900 MHz Specifications

Operating Frequency 900 MHz Operating Frequency
Certifications Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-RFSC1)
Complies with Industry Canada standards. (IC: 9794A-RFSC1)
Specifications Image

Suggested Application Uses for This Sensor

  • Monitor container levels
  • Track non-corrosive fluid levels