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Temperature Sensor:
Range: -20° to 70°C (-4° to 158°F)
Accuracy: ±0.21°C from 0° to 50°C (±0.38°F from 32° to 122°F)
Resolution: 0.024°C at 25°C (0.04°F at 77°F)
Response Time: 4 minutes in air moving 1 m/s (2.2 mph)
RH Sensor:
Range: 1% to 95% (non-condensing)
Accuracy: ±2.5% from 10% to 90% typical to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution: 0.01%
Response Time: 10 seconds to 90% in airflow of 1 m/s (2.2 mph)
Logger Operating:
Range Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing)
Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification
Logging Rate: 1 second to 18 hours, 12 minutes, 15 seconds
Time Accuracy: ±1 minute per month at 25°C (77°F)
Power Source: One 3V CR2032 lithium battery and USB cable
Memory: 128 KB (63,488 measurements, maximum)
Size: 3.66 x 8.48 x 2.29 cm (1.44 x 3.34 x 0.9 in.)
Weight: 30 g (1.06 oz)
