Indoor Air Quality Monitor with Oxygen and Alarms
Displays Indoor Air Quality and indicates gas leakage via lowered oxygen levels.
Displays readings on a bright green LED display with 2½" high CO2 digits. Also indicates general CO2 levels with green (good), yellow (fair), and red (poor) LED lights. Another set of LED lights indicates ambient O2 levels based upon OSHA CFR 1910.146 (b) levels. User may set maximum CO2 alarms indicated by a loud buzzer and a bright strobe light. The alarms are also automatically triggered by O2 (Oxygen) readings below 17.6% and above 23.5%. Adjust temperature and RH (Relative Humidity) readings to match any standard. Automatic Baseline Calibration (ABC) and maintenance free NDIR (non-dispersive infrared) CO2 sensor ensure long-term accuracy, stability and reliability. The Oxygen sensor includes a built-in fan for fast, accurate readings. Comes with an AC adaptor and will stand on a desk-top or wall mount.
- Air Temperature
- Relative Humidity
OSHA: Oxygen-deficient atmospheres may be created when oxygen is displaced by inert gases, such as carbon dioxide, nitrogen, argon, … Oxygen can also be consumed by rusting metal, ripening fruits, drying paint, or coatings, combustion, or bacterial activities.  Oxygen-enriched atmospheres may be produced by certain chemical reactions, … leaking oxygen hoses and torches. Oxygen enriched atmospheres present a significant fire and explosion risk. 
Dimensions: 13½" × 13½" × 3" (34.29 × 34.29 × 7.62 cm)
Weight: 3.55 lbs (1.61 kg)
|Temperature:||0 to 50°C
32 to 122°F
|0.1||±1°C (0 to 50°C) otherwise ±1.5°C
±1.8°F (32 to 122°F) otherwise ±2.7°F
|RH:||0.0% to 99.9%||0.1%||±5%RH (@25°C & 10 to 90%RH) otherwise ±7%RH|
|CO2:||0 to 5000 ppm||1 ppm||±75 ppm +5% of rdg|
|O2:||15.5% to 23.5%||1.9% (15.5 to 23.5%)||±1%|