UEi C161 Residential Combustion Analyzer
by UEi Test Instruments
EOS-technology combustion analyzer with direct CO2 measurement, heat exchanger test, and up to 10-year warranty via UEi Service+ program.
6.2 - Good Media

Overview
The UEi C161 is a residential combustion analyzer featuring EOS (Electro-Optical Sensor) technology that eliminates costly O2 sensor replacements by using optical CO2 measurement instead. It measures CO (0-2000 ppm), CO2 (0-20%), O2 (0-21%), and flue/inlet temperatures up to 1112F with 8 preprogrammed fuels, 30-second startup, and built-in heat exchanger test. NOx-filtered CO sensor and low-flow detection provide sensor protection, while the UEi Service+ program offers up to 10-year warranty coverage.
FSH Score Breakdown
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
- Contact for pricing
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