Lutron GCH-2018 CO2 Meter with Humidity & Temperature

Lutron GCH-2018 CO2 Meter with Humidity & Temperature

Lutron GCH-2018 CO2 Meter with Humidity & Temperature Monitoring

The Lutron GCH-2018 is a professional-grade multi-parameter measuring instrument designed for accurate monitoring of carbon dioxide (CO2), humidity, temperature, and dew point. ISO-9001 and CE certified, this high-precision device uses NDIR (Non-Dispersive Infrared) technology for reliable CO2 measurement, making it ideal for indoor air quality assessment, HVAC verification, and environmental monitoring applications.

Key Features & Benefits

• NDIR Measurement Technology - Provides accurate, stable CO2 readings for long-term operation
• Dual Probe System - Separate probes for CO2/Temperature and Humidity/Temperature/Dew Point measurements
• Wide Measurement Range - CO2 from 0 to 4,000 ppm with high precision (±40 ppm ≤1,000 ppm)
• Comprehensive Humidity Analysis - 10% to 95% RH with fast response time (10-30 seconds)
• CO2 Alarm Function - Configurable alert for exceeding threshold limits
• Data Management - Records maximum and minimum readings with recall capability
• Large S-TN LCD Display - High contrast screen for easy readability of measurements
• Data Hold Function - Freezes the current reading for convenient recording
• Computer Interface - RS232 connectivity for data transfer and analysis
• Intelligent Power Management - Auto-shutdown feature to extend battery life
• Portable Design - Compact unit with hard carrying case for field measurements
• Advanced Settings - CO2 altitude value adjustment and temperature unit selection

Technical Specifications

CO2 (Carbon Dioxide) Measurement

Parameter	Specification
Measurement Range	0 to 4,000 ppm
Resolution	1 ppm
Accuracy	±40 ppm (≤1,000 ppm) ±5% of reading (>1,000 ppm to ≤3,000 ppm) ±250 ppm typically (>3,000 ppm, reference only)
Repeatability	±20 ppm (≤3,000 ppm)
Response Time	<2 minutes typically (to 63% of reading value)

Humidity Measurement

Parameter	Specification
Measurement Range	10% to 95% RH
Resolution	0.1% RH
Accuracy	±3% RH (<70% RH) ±(3% reading + 1% RH) (≥70% RH)
Response Time	10 to 30 seconds typically (to 85% of reading value)

Temperature Measurement

Parameter	Specification
Measurement Range	0°C to 50°C (32°F to 122°F)
Resolution	0.1 degree
Accuracy	±0.8°C (±1.5°F)
Temperature Compensation	Automatic

Dew Point Measurement Lutron GCH-2018 CO2 Meter

Parameter	Specification
Measurement Range (°C)	-25.3°C to 48.9°C
Measurement Range (°F)	-13.5°F to 120.1°F
Resolution	0.1°C/°F
Accuracy	Sum of Humidity & Temperature measurement accuracy

General Specifications Lutron GCH-2018 CO2 Meter

Parameter	Specification
Display	52 mm × 38 mm dual function LCD with high contrast
Sampling Time	Approximately 1 second
Power Supply	DC 1.5V battery (UM4, AAA) × 6 PCs or equivalent
Power Consumption	CO2: Approx. DC 9.6 mA (90% period), DC 128 mA (10% period) Humidity: Approx. DC 5.6 mA
Operating Temperature	0°C to 50°C
Operating Humidity	Main instrument: Less than 85% RH CO2 probe: Less than 85% RH Humidity probe: 0 to 95% RH
Data Output	RS232 PC serial interface
Advanced Settings	CO2 altitude value adjustment CO2 alarm threshold Temperature unit selection (°C/°F) Auto power off enable/disable

Physical Specifications Lutron GCH-2018 CO2 Meter

Parameter	Specification
Dimensions (Main Unit)	173 × 68 × 42 mm (7.9 × 2.7 × 1.2 inches)
Dimensions (CO2 Probe)	185 × 38 × 26 mm
Dimensions (Humidity Probe)	200 × 23 × 19 mm
Weight (Main Unit)	312 g / 0.68 LB (including batteries)
Weight (CO2 Probe)	158 g / 0.35 LB
Weight (Humidity Probe)	82 g / 0.18 LB

Applications Lutron GCH-2018 CO2 Meter

The Lutron GCH-2018 is designed for a wide range of professional applications:

• Indoor Air Quality (IAQ) Assessment - Monitor CO2 levels in offices, schools, and public buildings
• HVAC System Verification - Confirm proper ventilation and air exchange rates
• Greenhouse Monitoring - Optimize CO2 levels for plant growth
• Industrial Hygiene - Ensure safe working conditions in manufacturing facilities
• Laboratory Environment Control - Maintain precise atmospheric conditions
• Building Management - Assess ventilation effectiveness in commercial structures
• Agricultural Applications - Monitor storage conditions for sensitive produce
• Environmental Research - Collect field data for scientific studies
• Educational Demonstrations - Teach environmental monitoring principles

Understanding the Measurements Lutron GCH-2018 CO2 Meter

Carbon Dioxide (CO2) Lutron GCH-2018 CO2 Meter

CO2 concentration is a critical indicator of air quality and ventilation effectiveness. The GCH-2018 uses NDIR technology, which provides more stable and accurate measurements than electrochemical sensors, especially for long-term monitoring. The wide range (0-4,000 ppm) covers typical indoor environments:

• 400-600 ppm - Fresh outdoor air levels
• 600-1,000 ppm - Acceptable indoor air quality
• 1,000-2,000 ppm - Complaints of drowsiness and poor air
• 2,000-5,000 ppm - Headaches, sleepiness, stagnant air, poor concentration
• >5,000 ppm - Workplace exposure limit in many jurisdictions

Humidity Lutron GCH-2018 CO2 Meter

Relative humidity affects comfort, health, and building integrity. The GCH-2018's fast-response humidity sensor provides quick readings for changing environments:

• 30-50% - Ideal for indoor comfort and health
• <30% - Can cause dryness and respiratory irritation
• >60% - Can promote mold growth and dust mite proliferation

Dew Point

The dew point temperature indicates when condensation will form on surfaces, which is crucial for preventing moisture-related problems in buildings. The GCH-2018 automatically calculates this value based on temperature and humidity measurements.

Package Contents Lutron GCH-2018 CO2 Meter

• GCH-2018 Main Instrument
• CO2/Temperature Probe
• Humidity/Temperature/Dew Point Probe
• Hard Carrying Case
• Instruction Manual
• 6 × AAA Batteries

Optional Accessories Lutron GCH-2018 CO2 Meter

• RS232 Cable (UPCB-02)
• USB Cable (USB-01)
• Data Acquisition Software (SW-U801-WIN)

Certification & Quality Lutron GCH-2018 CO2 Meter

The Lutron GCH-2018 is manufactured under ISO-9001 quality management standards and meets CE certification requirements and IEC1010 safety standards, ensuring reliable performance and accurate measurements for professional applications.

With its comprehensive measurement capabilities, professional-grade accuracy, and portable design, the Lutron GCH-2018 provides an ideal solution for monitoring indoor air quality and environmental conditions across a wide range of applications.

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