UEi C161 Residential Combustion Analyzer
by UEi Test Instruments
Last updated Mar 29, 2026 · 1 revision
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

About This Product
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.
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Customer Reviews
Features
Compliance & Safety3features
Hardware Features2features
Integrations 3 across 2 categories
Industry-Specific 2
Data & Automation 1
Pricing
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- Notes
- Pricing varies by retailer. Available at TruTech Tools, Test Equipment Depot, Global Test Supply, and other HVAC distributors. Typically in the $400-600 range for residential combustion analyzers of this class.
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