Picture of ToughSonic 50 (Rear Mount) Ultrasonic Level & Distance Sensor

ToughSonic 50 (Rear Mount) Ultrasonic Level & Distance Sensor

Maximum Range 50 Feet (15.2 Meters)

ToughSonic 50 Ultrasonic Sensor Features

  • Long range — small housing
  • Rugged construction, IP68 rated
  • Indoor or outdoor uses
  • Three mounting options
  • Five outputs plus serial data
  • Serial data-only models
  • Temperature compensation
  • PC configurable with free SenixVIEW software with nearly 80 sensor parameters that can be changed to tailor the sensor to your application

ToughSonic 50 Ultrasonic Sensor Best Applications

  • Tank levels of benign liquids
  • Flood level detection
  • Open water within Optimum Range
  • High sensitivity at distance
  • Object presence/absence status
  • Tree detection and spraying
Part Number: TSPC-21SRM-485


The ToughSonic 50 (Rear Mount) is a rugged ultrasonic level AND distance sensor. The ToughSonic 50 (Rear Mount) has built-in 0-10VDC, 4-20mA, and choice of RS-232 or RS-485 serial communications. The ToughSonic 50 (Rear Mount) also has built-in sourcing or sinking switches to control relays, alarms, motors, sirens, and more. All ToughSonic sensors are IP68 rated, and the ToughSonic 50 (Rear Mount) is built in a 316 stainless steel housing, with potted in and protected PUR cable and electronics. Available with 1.5 inch rear NPT threads, and also available as Serial Only (no analog outputs or switches)




Maximum Range 50 feet (15.2 meters)

Optimum Range 1 foot – 33 feet (30.5 centimeters – 10 meters)

Temperature -40° to 158° F (-40° to 70° C)

Humidity 0 to 100% operating

Protection NEMA-4X, NEMA 6P, IP68

Transducer Ruggedized piezoelectric

Compensation Temperature compensated (selectable in SenixVIEW)

Resolution Serial data: 0.0135 in. (0.3438 mm) Analog steps: 4099 (0-10 VDC),3279 (4-20 mA)

Repeatability Nominal 0.2% of range @ constant temp. Affected by target, distance, environment

Update Rate 5 Hz (200 ms), SenixVIEW adjustable; affected by SenixVIEW filter selections

Specifications are subject to change without notice.




Voltage Output 0-10, 0-5 VDC or SenixVIEW customized; 10 mA max.

Current Loop #1 Current sourcing 4-20 mA or SenixVIEW adjustable, max. loop 450Ω

Current Loop #2 Current sinking 4-20 mA or SenixVIEW adjustable, max. loop 450Ω

Two Switches 150 mA max. @ 40 VDC max., SenixVIEW selected as sinking (NPN) or sourcing

(PNP), each with adjustable set point, polarity, hysteresis & time delays

RS-232, RS-485 Modbus & streaming protocols, 9600-115200 baud (selectable), 8 data bits, 1 stop, no

parity, model number determines interface

SYNC feature Permits up to 32 sensors to operate in close proximity without interference. Not usable

with serial data only models.




Mounting 1.5 inch rear mount NPT

Attached Cable 6.5 feet (2 meters) Custom lengths available

Total Weight 22.6 oz. (0.64 kg)

Attribute NameAttribute Value
Documentation from Manufacturer
Output Signal Type
Analog, Digital



Sweden, Nacka Strand, Fabrikörvägen 10, 13152

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