063 Temperature Sensor

The Met One 063 Temperature Sensor is a device that precisely measures air, water and soil temperature over extended ranges. The thermistor sensor is encapsulated in a silicone oil-filled stainless steel jacket that is particularly well suited for field applications, as it exhibits high resistance sensitivity. This eliminates problems associated with line lead length, noisy environ- ments and poor connections.


The solid state thermistor produces a large resistance change per degree of temperature change, allowing the use of normal signal voltages without self-heating the sensor.


The sensor housing is composed of two stainless steel tubes. The smaller one contains the sensor and silicone oil; the larger one secures and seals the cable. In addition to providing a uniform temperature environment, the oil also provides a strain free mounting for the thermistor sensor. A weather- proof epoxy is used to provide a positive bond for cabling and assembly.


  • Stainless steel jacket allows direct measurements of air, water and soil
  • High resistance sensor values minimize signal line resistance errors
  • Sensors may be interchanged without requiring system recalibration
  • Several ranges are available to meet exact customer requirements
  • Suited for direct input to a variety of dataloggers and translators


Operating Characteristics

Maximum Range Linearity Accuracy
Model 063-1: -50°C to +50°C (-58°F to 122°F) ±0.15°C (0.27°F) ±0.1°C (0.18°F)
Model 063-2: 0°C to 100°C (32°F to 212°F) ±0.21°C (0.37°F) ±0.15°C (0.27°F)
Self-heating: None
Time Constant: 160 seconds
Physical Characteristics
Diameter: 0.54 in (13.7 mm)
Length: 6 in (152.4 mm)
Cable & Mounting
Cable Length: Supplied with 50 ft of cable, terminating in pigtails. Additional cable length
may be ordered.
Mounting: Mount in Model 073B and 5980 radiation shields for air temperature; mounts directly in soil or water for soil or water temperature.

Specifications are subject to change at any time