Self-powered humidity recorder complete with on-board humidity & temperature sensors, non-volatile memory, 10-year battery and precision clock.

Type of sensor	Integrated high-accuracy capacitive polymer RH sensor
Initial Accuracy	+/-1%RH over 10%RH to 90%RH at +20ºC to +30ºC +/-2%RH over 10%RH to 90%RH at -20ºC to +70ºC
Operating range	-35°C to +85°C, 0% RH to 100% RH (non-condensing)
Resolution	0.05% RH
1-year Accuracy (*denotes Accuracy One Year after original deployment)	*+/-2% RH over 10% RH to 90% RH at +20°C to +30°C   +/-3% RH over 10% RH to 90% RH at -20°C to +70°C
Calibration Interval	Annual (recommended)

Initial Accuracy	+/-0.10ºC over +20ºC to +30ºC +/-0.15ºC over -25ºC to +70ºC
Operating range	-35 to +85°C (-31 to 185°F)
Resolution	0.02°C at 25°C
1-year Accuracy	+/-0.15°C over 20°C to +30°C +/-0.25°C over -25°C to +70°C

General Humidity Logger Specifications

Memory

Memory Type	Non-volatile EEROM
Data Sample Capacity	35,100 12-bit samples
Memory Modes	User-selectable: Wrap when memory full (FIFO), or Stop when memory full.
Memory Protection	Data retention > 20 years backup without power.
Sampling Rates	User-selectable (in intervals of 10 seconds) from once every 10 seconds to once a day.
Recording Span: 2 Channels Enabled	Sample Interval Recording Span 10 seconds 2.0 days 1 minute 12.1 days 5 minutes 2.0 months 15 minutes 6 months 1 hour 2 years