EXTECH EA80 Indoor Air Quality Meter/Datalogger

EXTECH EA80 Indoor Air Quality Meter/Datalogger, Checks for Carbon Dioxide (CO2) concentrations, Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor, Continuous (20,000 sets) or manual (99 sets) datalogging. Data hold, Max/Min with Time stamp, and Alarm easy calibration in fresh air.

Extech EA80 EasyView Indoor Air Quality Meter/Datalogger measures Carbon Dioxide (CO2 , ppm) levels, ambient Temperature and Relative Humidity (%RH). Up to 20,000 readings can be logged by the meter and later transferred to a PC using the RS-232 interface. Maintenance free dual wavelength NDIR (non-dispersive infrared) CO2 sensor. Checks air quality in schools, office buildings, greenhouses, hospitals and anywhere that high levels of carbon dioxide are generated.

Specifications :

Display: LCD triple display.
Display Rate: One time per second.
Low Battery Indication: The picture is displayed when the battery voltage drops below the operating voltage.
Power Supply: Six (6) AAA-size alkaline batteries or Regulated AC adapter.
Battery Life: Approx. 8 hours by using alkaline batteries (without backlight or Alarm function). If datalogging over a long period of time, use an AC adapter.
Manual Data Memory Capacity: 99 sets.
Auto Datalogging Capacity: 20,000 sets (maximum 99 blocks)
Operating Temperature Range: 5°C to 50°C (41°F to 122°F)
Storage Temperature Range: -10°C to 60°C (-14°F to 140°F)
Operating Humidity Range: 10%RH to 90%RH, non-condensing.
Storage Humidity Range: 10%RH to 90%RH, non-condensing.
Dimensions: 158 (L)x72(W)x35(H)mm, (6.22″x2.83″x1.38″)
Weight: approx. 255g (including batteries)

CO2 Specifications:
Sensing Range: 0 to 6000ppm
Sensing Resolution: 1ppm
Accuracy: @ 101.4 kPa (29.92 inHg) and @ 25°C(77°F) ±3% of reading or ±50ppm, whichever is greater
Sensing Method: Dual wavelength detector with non- dispersive infrared (NDIR) sensor
Gas Sampling Mode: Diffusion
Warm up time: 10 seconds
Response time: < 10 minutes in still air
Temperature Coefficient: Add ±0.36% of reading per °C (±0.2% of reading per °F) away from calibration temperature