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The Honeywell WEB-600 / WEB-600E is a wall-mounted CO₂ transmitter designed for indoor air quality (IAQ) monitoring in commercial and industrial spaces. Its NDIR sensor ensures stable, drift-free CO₂ measurements for 15+ years, while the analog/digital outputs integrate with HVAC systems. The WEB-600E variant is ATEX-certified for use in hazardous areas (Zone 2).

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Model Number: WEB-600 (Standard), WEB-600E (Explosion-Proof)

Type: Wall-Mount CO₂ Transmitter (NDIR Sensor)

Measurement Range:

CO₂: 0–2000 ppm (Standard), 0–5000 ppm (Optional)

Accuracy:

±50 ppm ±5% of Reading (0–2000 ppm)

Output Signals:

Analog: 0–10V or 4–20 mA

Digital: Modbus RTU (RS-485)

Power Supply: 24V AC/DC (±10%)

Operating Temperature:

-10°C to +50°C (14°F to 122°F)

Humidity Range: 0–95% RH (Non-Condensing)

Response Time: <2 Minutes (T90)

Sensor Life: >15 Years (NDIR Technology)

Housing Material: ABS Plastic (IP54 Protection)

Display: LCD with Real-Time CO₂ & Temperature Readings

Certifications:

CE, RoHS

ATEX (WEB-600E Only, Zone 2 Hazardous Areas)