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IAQ-Calc Indoor Air Quality Meters 7525 TSI |
|
General Specifications |
|
CO2 |
|
Sensor Type |
Dual-wavelength NDIR |
( non-dispersive infrared ) |
|
Range |
0 to 5,000 ppm |
Accuracy |
±3.0 % of reading or ±50 ppm, whichever is greater |
Resolution |
1 ppm |
Response Time |
20 seconds |
Temperature |
|
Sensor Type |
Thermistor |
Range |
32 to 140 °F ( 0 to 60 °C ) |
Accuracy |
±1.0 °F ( ±0.5 °C ) |
Resolution |
0.1 °F ( 0.1 °C ) |
Response Time |
30 seconds ( 90 % of final value, air velocity at 400 ft/min [ 2 m/s ] ) |
Relative Humidity |
|
Sensor Type |
Thin-film capacitive |
Range |
5 % to 95 % RH |
Accuracy |
±3.0 % RH |
Resolution |
0.1 % RH |
Response Time |
20 seconds ( for 63 % of final value ) |
Percentage Outside Air |
|
Range |
0 to 100 % |
Resolution |
0.1 % |
Operating Temp. |
40 to 113 °F ( 5 to 45 °C ) |
Storage Temp. |
-4 to 140 °F ( -20 to 60 °C ) |
Logging Capability |
|
Ranges |
Model 7525 logs up to 30,300 data points with key ( 3 ) measured parameters enabled Model 7545 logs up to 26,900 data points with key ( 4 ) measured parameters enabled |
Time Constant |
1 sec, 5 sec, 10 sec, 20 sec, 30 sec ( user selectable ) |
Log Intervals |
1 second up to 1 hour ( user selectable ) |
Meter Dimensions ( all models ) |
3.3 in. x 7.0 in. x 1.8 in. ( 8.4 cm x 17.8 cm x 4.4 cm ) |
Probe Dimensions |
|
Length |
7.0 in. ( 17.8 cm ) |
Diameter |
0.75 in. ( 1.9 cm ) |
Weight ( with batteries ) |
0.6 lbs ( 0.27 kg ) |
Power Requirements |
|
Models 7525 |
Four AA-size batteries or AC adapter |