• Portable self-contained relative humidity & temperature data logger for critical validation applications
• Equipped with internal relative humidity & temperature sensors, memory and ten-year battery
• Tamper-proof operation produces reliable and secure documentation for validation records
• Password-protected setup, download and calibration functions ensure integrity of collected data
• Records relative humidity (RH) and temperature without wires, power cords or connections
• Traceable instrument-grade RH and temperature measurement accuracy
• Adjustable logging intervals with multi-year data recording capacity
• Premium quality precision sensors offer exceptional in-calibration data logger performance

Technical Specifications

Internal Relative Humidity Sensor

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
Resolution	0.05% RH
1-year Accuracy	+/-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 verification	Annual (recommended)

Internal Temperature Sensor

Initial Accuracy	+/-0.10ºC over +20ºC to +30ºC +/-0.15ºC over -25ºC to +70ºC
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

Size	2.8 x 2.1 x 0.8" (71x53x20mm); 65g (2.4 oz)
Operating Range	-35°C to 85°C (-31°F to 185°F) and 0% RH to 100% RH (non-condensing)
Interfaces	RS-232 serial, USB, Ethernet, PoE, WiFi network interface available.
Mounting	Magnetic strips; 3M Dual Lock™ fasteners
PC Software	Designed for use with vLog Software and Veriteq viewLinc(for on-going monitoring & alarming)
Clock	Accuracy: +/- 1 min./month at -25°C to +70°C
Electromagnetic Compatibility	FCC Part 15 and CE
Power Source	Internal lithium battery with life of 10 years at 1 minute sampling rate.

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	Sample Interval Recording Span 10 seconds 2.0 days 1 minute 12.1 days 5 minutes 2.0 months 15 minutes 6.0 months 1 hour 2.0 years