Picture of ToughSonic CHEM 12 Level & Distance Sensor

ToughSonic CHEM 12 Level & Distance Sensor

Maximum Range 12 Feet (3.66 Meters)

ToughSonic CHEM 12 Level Sensor Features

  • More compact design
  • Smaller diameter transducer – easier installation when space is limited
  • Shorter design – Measure closer to the top of a tank
  • Robust Strain Relief 
  • Non-contact level measurement
  • Rugged construction, IP68 rated
  • Indoor or outdoor uses
  • Top and bottom mounting threads
  • 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 CHEM 12 Level Sensor Best Applications

  • Chemical tank levels
  • Benign liquid tank levels
  • Tanks up to 12-ft (3.66 m) tall
  • 1.5 in NPT bottom thread, 1.0 in. NPT top thread
Part Number: LVL-120-485


The ToughSonic CHEM 12 is a rugged ultrasonic level AND distance sensor. The ToughSonic CHEM 12 has built-in 0-10VDC, 4-20mA, and choice of RS-232 or RS-485 serial communications. The ToughSonic CHEM 12 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 CHEM 12 is built in a PVDF housing for chemical applications, with potted in and protected PUR cable and electronics. The ToughSonic CHEM 12 has 1.5 inch NPT bottom mounting threads and 1 inch NPT top mounting threads, and also available as Serial Only (no analog outputs or switches)




Maximum Range 12 feet (3.66 meters)

Optimum Range 4 in. to 10 ft (100 mm to 3 meters)

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

Humidity 0 to 100% operating

Protection NEMA-4X, NEMA 6P, IP68

Transducer Chemically isolated piezoelectric

Compensation Temperature compensated SenixVIEW selected options

Resolution Serial data:0.0034 in. (0.086 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 20 Hz (50 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. Maximum output current 10 mA

Current Loops (x 2) Two 4-20 mA current loops:

Current sourcing and current sinking

Max loop resistance 450 ohms each

SenixVIEW customized

Both share calibration parameters

Switches (x 2) Two switches, SenixVIEW customized

150 mA max @ 40 VDC max

SenixVIEW selected as sinking (NPN) or sourcing (PNP)

Adjustable setpoint, polarity, hysteresis, ON timing, OFF


Serial Data Interface Modbus & streaming protocols, 9600-115200 baud

(configurable), 8 data bits, 1 stop, no parity

RS-485 permits multi-sensor networks

Part number determines interface




Housing Injection molded, chemically resistant Polyvinylidene fluoride (PVDF)

Also known as Kynar, a registered tradename of Arkema Inc.

Mounting Top mount: 1-inch NPT

Bottom: 1-1/2 in. NPT

Cable Potted into sensor, pigtail termination. 6.5 feet (2 meters), PUR

jacketed. Custom lengths available

Standard models: 9-wire shielded + drain

Serial data-only models: 4-wire + drain, dual twisted shielded pair

Weight 21.2 oz. (0.60 kg)

Weight includes 6.5 ft (2 meter) cable

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



Sweden, Solna, Signalistgatan 14, 16972.

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