Indoor Air Quality Monitor with Oxygen and Alarms - Sper Scientific Direct
Sper Scientific


Indoor Air Quality Monitor with Oxygen and Alarms

Regular price $1,124.00 $0.00 Unit price per

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
  • CO2
  • O2
OSHA: Carbon dioxide is an asphyxiant. Concentrations of 10% (100,000 ppm) or more can produce unconsciousness or death. Lower concentrations may cause headache, sweating, rapid breathing, increased heartbeat, shortness of breath, dizziness, mental depression, visual disturbances or shaking. [1]

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. [2] 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. [2]

Dimensions: 13½" × 13½" × 3" (34.29 × 34.29 × 7.62 cm)
Weight: 3.55 lbs (1.61 kg)


Range Resolution Accuracy
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%

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