PulStar Series Sensors


PulStar® Series Sensors

MassaSonic PulStar Series Ultrasonic Sensors are ruggedly designed transmitting modules that provide reliable continuous level or distance measurement of fluids, pastes, or solid bulk materials.  These sensors accurately operate at application ranges from 4 inches (100 mm) to 20 feet (6 m).

Incorporating state-of-the-art ultrasonic technology and processing algorithms, all PulStar models provide precision non-contact distance measurement for applications such as factory automation, process control, tank level monitoring, or object detection applications.   False echoes due to structure interference are not a problem because of advanced processing algorithms. The PulStar and PulStar Plus are the next generation improvements to Massa’s Legacy M-300 and M-320 product lines, and are completely backward compatible with existing M-300/M-320 installations and software. The NEW PulStar TTL Sensors are designed for easy electronic and mechanical interface to the control system of an OEM system integrator.  These rugged Sensors are RoHS compliant, IP68 rated, and available in three versions.  Contact a Massa Applications Specialist to discuss your specific sensing needs.

PulStar (standard)
The lower cost standard models in the PulStar Series are accurate, rugged, and particularly ideal if false echoes from sound reflecting structures between the sensor and the surface being measured are not encountered and extended detection ranges not required.
PulStar Plus
PulStar Plus Sensor additional features include: drop down menus to auto adjust detection settings to ignore false echoes caused by stationary objects in the sound path (mounting tubes), and contain a High Power Setting for extended detection range.
PulStar TTL
PulStar TTL Sensors easily interface into an OEM system integrator’s control system.  Powered by 5V DC, they communicate using asynchronous UART TTL 1.8V signals and have the detection setting features of a PulStar Plus to ignore false echoes.  
MassaSonic PulStar Series Sensors
  150 kHz
(Short Range)
95 kHz
(Medium Range)
Minimum Detection Distance 4 inches
(100 mm)
4 inches
(100 mm)
12 inches
(300 mm)
8 inches
(200 mm)
8 inches
(200 mm)
Maximum Detection Distance 7 feet
(2.1 m)
9 feet
(2.7 m)
13 feet
(4 m)
20 feet
(6 m)
13 feet
(4 m)
Automatic User Programmable Adjustment of Detection Settings No Yes No Yes Yes
0 to 10 V DC Analog
Output Model
Yes Yes Yes Yes No
0/4 to 20 mA DC Analog
Output Model
Yes Yes Yes Yes No
Housing Material PVC or PVDF PVC
Mount 1 inch NPT
Operating Temperature Range -40°C to 70°C
Electronic Communication
Using a Computer
RS-485 data link allowing up to 32 sensors
on a multi-drop communication network
TTL to USB converters
Datasheet Links PulStar / PulStar Plus Datasheetpdf        PulStar TTL Datasheet pdf
MassaSonic Software MassaSonic Software Version 3.44  (Download)
Installation & Operation Guide PulStar Series Sensor Installation & Operation Guidepdf
Serial Communications Guide PulStar and FlatPack Serial Communications Guide pdf

MassaSonic Series Sensors are supported by an experienced applications team ready to support any program customization to be developed and added into your drop down menu options.

All of our products are supported by an experienced applications team knowledgeable in a variety of usage conditions and industrial processes.  Our team is 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.

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