A temperature sensor for use with HOBO U-Series external-channel data loggers, this model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 1.8m (6ft) cable.
Can be plugged directly into the external input jacks of U12 Family loggers to expand the range of measurement options and applications.
Range: -40° to 50°C (-40° to 122°F) in water or soil
-40° to 100°C (-40° to 212°F) in air
Accuracy with H8 (insert probe 0.9 in. min.): ±0.5° at 20°C (±0.9° at 68°F), see plot A
Accuracy with U12 (insert probe 0.9 in. min.): ±0.21°C from 0° to 50°C (0.38°F from 32° to 122°F), see plot B
Accuracy with ZW (insert probe 0.9 in. min.): ±0.21°C from 0° to 50°C (0.38°F from 32° to 122°F), see plot B
Drift: < 0.1°C (0.2°F ) per year
Resolution with H8: 0.41° at 20°C (0.7°F at 68°F), see plot A
Resolution with U12: 0.03° at 20°C (0.05°F at 68°F), see plot B
< 3 minutes typical to 90% in 1 m/sec air flow/< 30 seconds typical to 90% in stirred water
Housing: Stainless-steel sensor tip
Probe dimensions: 0.5 cm x 2.5 cm (0.20 in. x 1.0 in.)
Length: Available in 0.3m, 1.8m, 6.1m, and 15.2m foot cable lengths (1, 6, 20, and 50 foot)
Weight: 14g (0.5 oz), 37g (1.3 oz), 125g (4.4 oz), or 280g (9.9 oz)
Note: Sensor tip and cable immersion in fresh water up to 50°C (122°F) for one year; radiation shield strongly recommended for use in sunlight.