LUTRON PM-1064SD Indoor Air Quality Monitor with SD Card Data Logger

Specifications:

• PM2.5: 0 to 250 micrograms per cubic meter at +/10 %
• Humidity: 5 to 95% RH +/-3% RH to 70%
• Temperature: 0 to 50C, +/-0.8 C
• CO2: 0 to 10K ppm, +/-50ppm +3% of reading to 3000ppm
• Barometric pressure: 10 to 110 hPa, +/-2hPa
• Logging interval: 2 sec to 3600 sec, and manual by push button to 99 sets
• Batteries: 6x AA or optionaACl 9V battery pack for longer term logging.