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T: 514-354-2511
T: 1 800 463-4363
F: 514-354-6948
Digital temperature sensor from Stevens

Digital temperature sensor

Product Code:SDI-12 Output

Need more Info? (514) 354-2511 - 1-800-463-4363

The Stevens Digital Temperature Sensor... a smart temperature sensor ideal for fast, high-accuracy readings in water, soil, and air. SDI-12 output communication ensures that the Digital Temperature Sensor can communicate with any Stevens or 3rd party data logger or telemetry system. The sensor will output temperature in Celsius, Fahrenheit, and Kelvin units.

The Digital Temperature Sensor features fully-potted components, robust PVC Type II housing, and a 316-grade stainless steel tine, making the sensor suitable for harsh environments.

The marine-grade tine makes insertion into compacted soils easy, and a loop hole which can be used to mount weights or pull the sensor through pipes or other small areas.



  • High-accuracy temperature measurement
  • Works in water, soil, or air
  • Small size for easy installation



  • SDI-12 output
  • Fully potted electronics
  • Tough PVC Type II housing resists damage
  • Celsius, Fahrenheit, and Kelvin temperature output
  • Fast, immediate results
  • Very low power consumption



  • Rivers
  • Streams
  • Lakes or reservoirs
  • Weather stations
  • Soil monitoring
  • Research


Technical Specifications

Sensor Thermistor
Output SDI-12
Measurement Range -40º F to +140º F (-40º C to +60º C)
Accuracy ±0.3° F (±0.2° C) from 23° F to 113° F (-5º C to +45º C)
Current Draw 5 mA active, 0.6 mA quiescent
Units Celsius, Fahrenheit, and Kelvin
Length 6.10 inches (15.53 cm)
Diameter 0.85 in (21.59 mm)
Weight 4.0 oz (113.4 g), without cable


Wire Connections

Red +12 volts
Black Ground
Blue SDI-12 data


Ordering information

Part # Description
51126 Stevens Digital Temperature Sensor with 100 ft of cable
93924 Cable for custom lengths in excess of 100 ft, specify length needed when ordering
93786 Solar radiation shield for air temperature measurement
51139-01 Stevens SDI-12 Xplorer, USB sensor configuration interface


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