⚛️ USES: For combustion flue gas analysis HVAC, appliance exhaust, check and maintenance, cracked exchange, leakage and indoor air quality. USA NIST Calibration Certificate. FEATURES: Color screen, graphing and data logging functions. Includes waterproof hard case, water trap, particle filter and NOx filter to reduce cross sensitivity errors. SENSORS: Electrochemical sensors with Oxygen O2 and CO. Calculates COAF (CO air free) and excess air (EA) for combustion analysis. Built in micro-pump 0.5 LPM. STRONG: Robust design with ABS and Anti-slip grip rubber. Aluminum Probe. Back magnet for easy mount. IP65 certified with waterproof hard case️ TRUST: ** 1 year limited warranty ** Arrives with NIST USA Calibration Certificate ** 100% product test and calibrated in the USA ** USA Customer support by FORENSICS **
|
| Basic FD-4A-Flue | Residential FD-4S-Flue | Professional FD-600-Flue |
| CO & O2 Sensors | ✓ | ✓ | ✓ |
| COAF and EA Calculation | ✓ | ✓ | ✓ |
| NIST Calibration | ✓ | ✓ | ✓ |
| Built-in Pump | | | ✓ |
| Color Screen | | ✓ | ✓ |
| USB Data-logging | | ✓ | ✓ |
| Graphing | | ✓ | ✓ |
| USB Charging | ✓ | ✓ | ✓ |
| NOx Filter & Water Trap | ✓ | ✓ | ✓ |
| Pistol Grip Probe | | | ✓ |
