REED INSTRUMENTS Indoor Air Quality Meter: Calculates Averages/LCD Display, Carbon Dioxide

The REED INSTRUMENTS R9905 measures carbon dioxide levels, temperature, and relative humidity in indoor environments. It is commonly used by HVAC technicians, facility managers, and safety inspectors to monitor air quality in offices, schools, and industrial spaces. The triple LCD display shows readings simultaneously, and the sound alert notifies users when CO₂ exceeds set thresholds.

The R9905 detects carbon dioxide with a PPM accuracy of ±3% of reading or ±75ppm from 0 to 5,000ppm. Temperature accuracy is +/-1.5°, and relative humidity accuracy is ±3% from 10 to 90% RH. It features a triple LCD display with backlight, runs on battery power, includes a carrying case, and offers a sound alert type. Calibration certificates are available separately.

3G Electric supplies the REED INSTRUMENTS R9905 Indoor Air Quality Meter to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact our team to place an order or request a quote for this gas analyzer.

The REED INSTRUMENTS R9905 requires periodic calibration to maintain accuracy. A calibration certificate is available separately from the manufacturer. For best results, send the meter to a certified calibration lab or follow the procedures in the user manual. Regular calibration ensures reliable CO₂, temperature, and humidity readings in indoor air quality monitoring.