Specifications

SmartReader Plus Data Logger

Range: 0 to 95% RH

Accuracy: ±3% RH from 10 to 90% (-20 to 40°C [-4 to 104°F])

Resolution: Better than 0.04% RH between 25 and 60% RH at 25°C

(77°F)

Environmental Conditions: The RH sensor is relatively immune to chemical

contamination but when exposed to extreme environmental

conditions, accuracy degradation could result. For long-term

stability and reliable readings, the sensor should not be

subjected to liquid immersion or exposed to high

concentrations of organic solvents, corrosive agents, sulfur

gases and strong acids or bases. Dust settling on the sensor

surface will not affect sensor performance except possibly to

decrease the speed of response.

Chemical Tolerances: Limits for different chemical groups

1. Organic solvents typically 1,000...10,000 ppm

2. Corrosive agents (strong acids S02, H2SO4, Cl2, HCl,

H2S etc.) typically 1...10 ppm

3. Weak acids typically 100...1,000 ppm

4. Bases typically 10,000...100,000 ppm

External Sensors(2):

Range: Any two sensors with a 0-5 VDC output

Specifications are subject to change without notice.