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921MHz
Temperature:
Measurement Range: -40°C to 75°C (-40°F to 167°F)
Accuracy: ±0.25°C from -40° to 0°C (±0.45°F
from -40° to 32°F); ±0.20°C from 0° to 70°C (±0.36°F from 32° to 158°F); ±0.25°C from 70° to 75°C (±0.45°F from 158° to 167°F)
Resolution: 0.02°C (0.036°F)
Response Time (typical, to 90% of change): Without solar radiation shield: 3 minutes, 45 seconds in air moving 1 m/sec; With RS3-B solar radiation shield: 6 minutes, 30 seconds in air moving 1 m/sec
RH:
Measurement Range: 0–100% RH at -40° to 75°C (-40° to
167°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: 0.01% RH
Response Time (typical, to 90% of change): Without solar radiation shield: 15 seconds in air moving 1 m/sec; With RS3-B solar radiation shield: 30 seconds in air moving 1 m/sec
Operating Temperature Range: -25° to 60°C (-13° to 140°F) with rechargeable batteries; -40° to 70°C (-40° to 158°F) with lithium batteries
Logging Rate: 1 minute to 18 hours
Battery Type/ Power Source: Two AA 1.2V rechargeable NiMH batteries, powered by built-in solar panel or two AA 1.5 V lithium batteries for operating conditions of -40° to 70°C (-40° to 158°F)
Memory: 16 MB
