DOL-119 CO2 Sensor

The DOL 119 CO₂ Sensor (5000/10000 ppm – 4‑20 mA) is a high‑precision carbon‑dioxide sensor designed for continuous CO₂ monitoring in livestock houses and industrial environments.

Its dual 4‑20 mA outputs allow accurate measurement across 0–5000 ppm and 0–10000 ppm, supporting both comfort‑zone monitoring and detection of fault conditions in facilities using direct combustion heating.

The sensor features a robust housing, a carefully selected filter, and a protective cap for washing and disinfection. With IP67 protection and long service life, it ensures reliable operation even in dusty or humid environments.

Technical Specifications

• Output type: 4–20 mA (two independent current outputs) 
• Output 1 range: 0–10,000 ppm CO₂
• Output 2 range: 0–5,000 ppm CO₂
• Resolution:
  • Output 1: 0.0016 mA/ppm
  • Output 2: 0.0032 mA/ppm
• Accuracy:
  • 400–10,000 ppm: 50 ppm + 5% of measured value
• Temperature stability: +2.5 ppm/°C (0–50°C)
• Time constant (T63): ~2 minutes @ 0.5 m/s air velocity