Geneq > Meteorology > Data Loggers - Miniature

Four-Channel Temperature and Relative Humidity Data Logger

Model SmartReader Plus 2

The SmartReader Plus 2 is a self-contained data logger that can monitor and record temperature and relative humidity right out of the box. The on-board RH sensor is temperature compensated, permitting reliable, worry free RH readings. For remote sensing of temperature and RH, simply attach ACR’s temperature/RH probe, or for remote temperature sensing, attach up to two thermistor probes.

Applications

Monitoring the transportation or storage conditions of perishable and/or pharmaceutical goods, tracking “air quality”, HVAC system testing and balancing, etc.

General Specifications

Size	107mm x 74mm x 22mm (4.2” x 2.9” x 0.9”)
Weight	110 g (3.75 oz)
Case Material	Noryl® Plastic
Battery	3.6 volt Lithium, 1 Amp-Hour
Resolution	12-bit (1 part in 4096)
Mounting	Magnetic backing or locking eyelet
Clock Accuracy	± 2 seconds per day
Sampling Methods	Continuous (First-in First-out)*, Stop When Full (Fill-then-stop) *Not available with sample rates faster than eight seconds.
Operating Limits	-40°C to 70°C (-40°F to 158°F) and 0 to 95% RH (non-condensing)
PC Requirements	Windows PC with at least one free USB or serial port (depending on interface)
Software Requirements	TrendReader® 2 (Compatible with Windows XP SP3, Windows Vista SP2& Windows 7 (32 bit & 64 bit)
Memory Size	128 KB (capable of storing up to 87,000 readings)
Sampling Rates	User selectable rates from 25 per second to once every eight hours (BP-101 battery pack or PS-201 power supply required for sampling rates faster than eight seconds)
Number of Channels	Four (one for the internal temperature sensor, one for the internal RH sensor and two for remote measurements of temperature and RH [with ACR’s EH-020A

Sensor Specifications

Internal Temperature Sensor
Type	NTC Thermistor - 10,000 Ohm @ 25°C (77°F)
Range	-40°C to 70°C (-40°F to 158°F)
Accuracy	±0.2°C over the range of 0°C to 70°C (± 0.3°F over the range of 32°F to 158°F)
Resolution	0.03°C (0.05°F) @ 25°C; better than 0.07°C (0.12°F) between -25°C and 70°C (-13°F and 158°F); better than 0.13°C (0.23°F) between -40°C and -25°C (-40°F and -13°F)
Internal Relative Humidity Sensor
Type			Capactive thin polymer film
Range			0 to 95% RH (non-condensing)
Accuracy			±3% RH from 10 to 90% RH (-20°C to 40°C [-4°F to 104°F])
Resolution			Better than 0.04% RH between 25% and 60% RH @ 25°C (77°F)

Ordering Information

Item	Cat No.
S RP-002-128K (SmartReader Plus 2)	01-0113