The Smart Temp is a high precision digital temperature sensor that meets USGS guidelines. It features the ability to automatically sample temperature and calculate minimum, maximum, and average temperatures on a flexible time scale.
This sensor is ideal for high-accuracy readings in water, soil, and air. It features fully-potted components, robust PVC Type II housing, and marine-grade stainless steel, making the sensor ideal for harsh environments. Model 51163-300 is small enough to easily deploy through standard 1” (2.5cm) PVC conduit with 8” (20.3cm) factory bend corners. It also offers a loop hole which can be used to mount weights or pull the sensor through pipes or other small areas.
Model 51163-200 has a durable, marine-grade stainless steel tine for easy soil insertion.
SDI-12 output provides universal compatibility with any SDI-12- enabled data logger and low power applications, or use the standard SDI-12 command set over an RS-485 physical interface for applications that require long cable runs or many sensors.
- Automatic minimum, maximum, and average calculations
- RS-485 and SDI-12 interfaces (auto-detecting)
- SDI-12 Ver 1.4 compliant
- Firmware updates through RS-485
- NIST certification available
- High-accuracy temperature measurement
- Extremely low current draw
- Works in water, soil, or air
- Suitable for freshwater or marine applications
- Fully potted electronics
- Tough PVC Type II housing
- Celsius and Fahrenheit output
- No calibration required
Easily deployed through standard 1” PVC conduit with 8” factory bend corners
* Model # 51163-300
|Sensor||Silicon bandgap temperature sensor|
|Output||SDI-12 v.1.4 and RS-485|
|Measurement range||-40° F to +140° F (-40° C to +60° C)|
|Accuracy||±0.18° F (±0.1° C) from 23° F to 122° F (-5° C to +50° C)
±0.2° C outside this range
|Power requirement||9 to 18 VDC|
|Current draw||Idle: 10 μA (SDI-12), 0.6 mA (RS485)
Sample: 6mA for 10 ms
Transmit/receive: 6mA for ~ 100 ms (depends on length of data)
Peak: 30 mA for 1 ms during initial power-on
|Units||Celsius, Fahrenheit, and Kelvin|
|Dimensions||4.95” (125.7 mm) L x 0.7” (17.8 mm) ⌀ (#51163-200)
3.56” (90.4 mm) L x 0.70” (17.8 mm) ⌀ (#51163-300)
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