Large display continually monitors the primary IAQ (Indoor Air Quality) parameters:

• Air Temperature
• RH
• CO₂

Poor air quality may cause tiredness, inability to concentrate, and even illness (i.e., Sick Building Syndrome). This instrument is ideal for monitoring indoor air quality in crowded public spaces with potentially high levels of CO₂ (carbon dioxide) such as offices, factories, classrooms, hospitals and hotels. Recalls min/max CO₂ levels and provides visual alarms for maximum CO₂ threshold. Automatic Baseline Calibration (ABC) and maintenance free NDIR (non-dispersive infrared) CO₂ sensor ensure long-term accuracy, stability and reliability. Comes with an AC adapter (800059) and will stand on a desk-top or wall mount.

Dimensions: 4½" × 4¼" × 1" (108 × 115 × 25 mm)
Weight: 6 oz (170 g)

---

News Link:
  - by Emily Anthes, NY Times - Oct. 10, 2021

Specifications

	Range	Resolution	Accuracy
Temperature	-10 to 50°C -14 to 122°F	0.1°C & F	±0.6°C (-10 to 50°C) otherwise ±1.2°C, ±2.5°F
RH	10% to 90%	0.1%	±5% (@25°C & 10 to 99% RH) otherwise ±7%
CO2	0 to 9999 ppm	1 ppm	±75 ppm +5% of rdg (0 to 2000 ppm)

Downloads

Comparison Chart