AZ Instrument Carbon Dioxide Meter VZ7752 - CO2, Temperature, Humidity

The AZ Instrument VZ7752 is a professional-grade carbon dioxide meter designed for accurate and reliable measurement of CO2 concentration, temperature, and relative humidity. Featuring advanced NDIR sensor technology, this device is ideal for indoor air quality monitoring in offices, schools, greenhouses, and industrial environments. With a large backlit LCD display, data logging capability, and adjustable CO2 alarm, the VZ7752 provides comprehensive environmental analysis.

Advantages

High-precision NDIR CO2 sensor ensures stable and accurate readings over a wide range. The device supports both manual calibration and automatic baseline correction (ABC) for long-term reliability. Data logging of up to 32,000 points allows for trend analysis via USB connection to a PC. The audible alarm with adjustable threshold alerts users to unsafe CO2 levels, enhancing safety.

Suitable for

• Indoor air quality monitoring in offices, schools, and hospitals
• Greenhouse and agricultural environment control
• HVAC system performance verification
• Industrial workplace safety compliance
• Research and educational demonstrations

Key specifications

• Measured parameters: CO2, Temperature, Relative Humidity
• CO2 sensor: Non-Dispersive Infrared (NDIR)
• CO2 range: 0 - 9999 ppm
• CO2 accuracy: ±50 ppm ±5% of reading (0-2000 ppm)
• CO2 resolution: 1 ppm
• Temperature range: -10 to 60 °C (14 to 140 °F)
• Temperature accuracy: ±0.6 °C (±0.9 °F)
• Humidity range: 0.1 to 99.9% RH
• Humidity accuracy: ±3% RH (at 25°C, 10-90% RH)
• Display: Large LCD with backlight
• Data logging: 32,000 points (CO2, Temp, RH)
• Alarm: Audible CO2 alarm with adjustable threshold
• Connectivity: USB for PC interface and data download
• Power: 5V DC adapter (included) or 4x AA batteries
• Calibration: Manual (400 ppm) or Automatic Baseline Correction (ABC)
• Operating temperature: 0 to 50 °C (32 to 122 °F)
• Additional functions: Max/Min/Average, Hold, Real-time clock

Recommendations

For optimal accuracy, allow the meter to stabilize for 10 minutes after power-on. Perform manual calibration periodically using fresh air (400 ppm CO2) or enable ABC for automatic adjustment. Use the included USB cable and software to download logged data for detailed analysis.