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Temperature sensor:
Operation Range: -40 to 70°C (-40 to 158°F)
Accuracy: ±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F), ±0.2°C from 0 to 70°C (±0.36 from 32 to 158°F)
Resolution: 0.04°C (0.072°F)
Response Time (Typical to 90%): 3 minutes, 45 seconds in air moving 1 m/sec
RH sensor:
Operation Range: 0 to 100% RH, -40° to 70°C (-40° to 158°F). Exposure to conditions below -20°C (-4°F) or above 95% RH may temporarily increase the maximum RH sensor error by an additional 1%
Accuracy: ±2.5% from 10% to 90% RH typical to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
Resolution: 0.05%
Response Time (Typical to 90%): 15 seconds in air moving 1 m/sec
Operation Range: -40° to 70°C (-40° to 158°F)
Real-time Clock: ±1 minute per month 0° to 50°C (32° to 122°F)
Battery: 1/2 AA, 3.6 Volt lithium, user-replaceable (HP-B)
Memory (Non-Volatile): 64K bytes memory (approx. 21,000 temperature and RH measurements)
Weight: 118 g (3.1 oz)
Dimensions: Housing measures 10.2 × 3.8 cm (4.0 × 1.5 in.)
