The 7545 model simultaneously measures and data logs multiple parameters. Measurements are CO, CO2, temperature, humidity; and calculations are dew point, wet bulb temperature, and % outside air.
The 7545 model simultaneously measures and data logs multiple parameters. Measurements are CO, CO2, temperature, humidity; and calculations are dew point, wet bulb temperature, and % outside air.
Featuring a statistic function, this indoor air quality meter displays average, maximum, and minimum values, and the number of recorded samples. Software that permits easy transfer of data to a computer is also included.
Features
Applications
CO2 Sensor | Type: dual-wavelength NDIR (non-dispersive infrared) Range: 0 to 5000 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% |
CO Sensor | Type: electro-chemical Range: 0 to 500 ppm Accuracy: ±3.0% of reading or ±3 ppm, whichever is greater Resolution: 0.1 ppm Response time: <60 seconds to 90% step change |
Temperature | Operating: 40 to 113°F (5 to 45°C) Storage: -4 to 140°F (-20 to 60°C) |
Logging Capability | Range: up to 26,900 data points with four key measured parameters enabled Time constant: 1 sec, 5 sec, 10 sec, 20 sec, 30 sec (user selectable) Intervals: 1 second up to 1 hour (user selectable) |
Dimensions | Meter: 3.3 x 7.0 x 1.8” (8.4 x 17.8 x 4.4 cm) Probe: 7 x .75" (17.8 x 1.9 cm) |
Weight | 0.6 lbs (0.27 kg) |
CO2 Sensor | Type: dual-wavelength NDIR (non-dispersive infrared) Range: 0 to 5000 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% |
CO Sensor | Type: electro-chemical Range: 0 to 500 ppm Accuracy: ±3.0% of reading or ±3 ppm, whichever is greater Resolution: 0.1 ppm Response time: <60 seconds to 90% step change |
Temperature | Operating: 40 to 113°F (5 to 45°C) Storage: -4 to 140°F (-20 to 60°C) |
Logging Capability | Range: up to 26,900 data points with four key measured parameters enabled Time constant: 1 sec, 5 sec, 10 sec, 20 sec, 30 sec (user selectable) Intervals: 1 second up to 1 hour (user selectable) |
Dimensions | Meter: 3.3 x 7.0 x 1.8” (8.4 x 17.8 x 4.4 cm) Probe: 7 x .75" (17.8 x 1.9 cm) |
Weight | 0.6 lbs (0.27 kg) |