Fieldpiece SOX3 Combustion Checker
by Fieldpiece Instruments
Entry-level combustion checker measuring %O2, calculating %CO2/%EA/efficiency with automatic pump, 8-ft hose, and custom fuel programming for HVAC techs.
5.7 - Good Custom · $513
Visit website →
Media
www.fieldpiece.com
Overview
The SOX3 is a combustion checker, not a full analyzer (no CO sensor, no draft measurement). It fills the role of a quick furnace tune-up tool for HVAC technicians who don't need full combustion analysis on every call. Field-replaceable O2 sensor.
FSH Score Breakdown
Ease of Use 7.5
Features 4.5
Support 6.0
Value 6.5
Integrations 4.0
AI Capabilities 1.0
Customer Reviews
Key Features
| Feature | Value |
|---|---|
| Carbon Monoxide Measurement | ❌ |
| Oxygen Measurement | ✅ |
| Flue Gas Temperature Sensor | ✅ |
| Bluetooth Connectivity | ❌ |
All Features
| Feature | Value |
|---|---|
| Sulfur Oxides Measurement | ❌ |
| Nitric Oxide Measurement | ❌ |
| Ambient Temperature Sensor | ✅ |
| Draft Pressure Measurement | ❌ |
| Internal Data Logging | ❌ |
| USB Data Export | ❌ |
| Rechargeable Battery | ❌ |
| Backlit Display | ✅ |
| Auto Shutoff | ✅ |
| Wireless Probes | ❌ |
| Cloud Data Sync | ❌ |
Pricing
- Model
- Custom
- Starting at
- $513
- Notes
- ~$513 retail. Combustion checker with auto pump. Measures O2; calculates CO2, excess air, combustion efficiency.
Need a website for your HVAC business?
Full Stack HVAC builds professional contractor websites that generate leads. Purpose-built for HVAC companies.
Build Your Website →Similar Combustion Analyzers Tools
Compare all →Other tools in the same category. Compare to find the best fit.
