
SmartReader Data Logger
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(+/- 0.3°F over the range of 32 to 158°F)
Resolution: 0.4°C (0.7°F) at 25°F; better than 1°C (1.8°F)
between -25 and 70°C (-13 and 158°F);
better than 2.0°C (3.6°F) between -40 and -25°C (-40°F and
-13°F)
Relative Humidity Sensor & EH-020A
Type: Capacitive thin polymer film
Range: 0 to 95% (non-condensing)
Accuracy: ±4% from 10 to 90% RH (-20 to 40°C [-4 to 104°F])
Resolution: Better than 0.4% RH between 25 and 60% RH at 25°C (77°F)
Response Time: Adequate ventilation reduces the response time which is
approximately 5 minutes in still air.
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
Specifications are subject to change without notice.
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