SonAire Series Sensors

SonAire Sensor


SonAire® M3 & M3is Sensors  

MassaSonic SonAire Series M3 and M3is Sensors consist of battery operated wireless level sensors that intercommunicate using ZigBee RF Modules. These sensors produce detection ranges from 4 inches (100 mm) to 13 feet (4 m).  Longer ranges available for large quantity orders only – please consult factory.

Incorporating state-of-the-art ultrasonic technology, the sensors provide precision non-contact distance measurement for liquid level or industrial process control. The M3 stands out over all other systems because of their affordability, extraordinary ease of operation, and ability to be installed and calibrated without using a target. They transmit narrow beam sound pulses, process return echoes, and report the distance to the target. The sensor housing material is all Kynar (PVDF) to provide the ultimate in chemical resistance in the harshest industrial environments.

SonAire Sensors measure and store information such as range, temperature, battery voltage, and other sensor parameters at user-set time intervals. An internal pushbutton switch is used to commission the sensor onto the ZigBee network, and an LED identifies the operating mode.  SonAire Sensors are RoHS compliant, and the package is rated for immersion and high-pressure washing in accordance with IP67. The batteries are commonly available lithium AA type and are easily accessible for replacement.  Typical battery life is 2-4 years.

All SonAire Series Sensors are available in two versions.  Standard SonAire M3 Sensors are designed for operation in typical industrial applications. For use in hazardous environments, intrinsically safe SonAire M3is Sensors are also available.  SonAire M3is Sensors are certified by Factory Mutual as meeting the requirements of Class 1 Div 1 (C1D1), All Groups, which is the highest rating.  Contact a Massa Applications Specialist to discuss your specific sensing needs.


MassaSonic SonAire Series Sensors



M3 (standard)

150 kHz 95 kHz   150 kHz 95 kHz
Detection Distance
4 inches
(100 mm)
12 inches
(300 mm)
  4 inches
(100 mm)
12 inches
(300 mm)
Detection Distance
7 feet
(2.1 m)
13 feet
(4 m)
  7 feet
(2.1 m)
13 feet
(4 m)
Class Intrinsically Safe   General Purpose
Wireless Yes
Output Zigbee
Housing Material PVDF
Mount 2 inch NPT
Operating Temperature -30°C to 65°C
Datasheet Link SonAire Series Sensor (M3/M3is) Datasheetpdf

Software & Manuals

SonAire M3 Tank Level Monitoring Solution Evaluation Kit Page

SonAire M3 Sensor System Integrator’s Guidepdf

SonAire M3 Sensor Developers Guidepdf

SonAire M3 Application Software Download (V3.0.0.81)

Quick Guide Getting Started SonAire M3 and Digi Gatewaypdf

SonAire M3 Python and Digi Gateway Files
(updated to Python v1.14 and DIA v2.1.1.2)

SonAire M3 Sensor Firmware Download

SonAire M3 MODBUS Python Gateway Setup Procedure
(Reference only – not yet converted from simply M3)

SonAire M3 MODBUS Python Gateway Files Download

Massa Python Code for Digi Gateways (serial port driver only)

MassaSonic SonAire M3 and M3is Sensors provide the user the opportunity to rapidly deploy level or distance measurement capability anywhere, with confidence and no need for infrastructure.


All of our innovative products are supported by an experienced applications team,
ready to provide assistance with installation and sensor commissioning.


As a family company, Massa Products Corporation places the highest emphasis upon quality in all we do,
where it begins not as a 
statement, but as a value.  Quality is our policy; this is the case from the earliest stages
of our designs, through the final production of our products, 
and most importantly with the relationships
we nurture with our customers, and vendors – it is evident that with Massa you’re family.


Certifications and Product Approvals  |  Export Policy

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