Air/Water/Soil Temp Sensor (20' cable) Sensor - TMC20-HD

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 6.1m (20 ft) cable.

Range: -40° to 50°C (-40° to 122°F) in water or soil

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 series (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 series(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

Response time:
< 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.

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