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.

Specifications

RH Sensor Type	Capacitive thin polymer film
RH Sensor Range	0 to 95% RH (non-condensing)
RH Sensor Accuracy	+/- 3% RH from 10 to 90% RH (-20 to 40ºC [-4 to 104ºF])
RH Sensor Resolution	Better than 0.04% RH between 25 and 60% RH at 25ºC (77ºF)
No. of Channels	Four (one for ambient temperature, one for relative humidity [internal sensor], one for remote relative humidity [external sensor], and one for remote temperature, resistance, or switch status)
Environmental Conditions	Like all relative humidity sensors, when exposed to contaminants and/or extreme environmental conditions accuracy degradation could result. For maximum long-term stability, sensor should not be exposed or subjected to organic solvents, corrosive agents (acids, SO2, H2SO4, Cl2, HCl, H2S, etc.), and strong bases (compounds with PH greater than 7). Dust settling on the sensor surface will not affect sensor performance except possibly to decrease the speed of response.

Ordering Information

Model	Memory	Catalog #
SRP-002-128K	128 KB	01-0113