• Two gas sensors for O2 and CO Draft, pressure and temperature measurements High CO protection Field replaceable sensors CO2, combustion efficiency, excess air Ambient CO monitoring Yellow Jacket® YJ combustion application Automatic generation of QR code to download analyses to share with customers or for records CO air-free Built-in dual pressure manometer Ideal for high efficiency condensing systems Internal data storage 15-programmed fuels (including #2 oil, #4 oil, #6 oil, natural gas, propane, wood, biofuel and more) Backlit display for easy viewing Protective magnetic rubber holster for hand-free operation Long-lasting rechargeable battery holds charge for 8 hr Optional wireless Bluetooth® printer (included in CA502P P/N 68602) High altitude adjustment

The Yellow Jacket® combustion analyzer (CA502 and CA502P) is an essential tool for ensuring the safety, efficiency and proper operation of heating appliances. With six simultaneous readings displayed, CA502 is among the best in the industry. Compact and lightweight, the analyzer with a magnetic protective holster fits in the palm of your hand. The CO over-limit protection provides sensor longevity and the 7 in duct probe with adjustable depth stop allows for easy installation and use at any jobsite. A wireless printer option and YJ combustion App make the Yellow Jacket® combustion analyzer the simplest combustion analyzer on the market. The inline condensate trap and soot filter provides easy viewing and easy change out and clean-up at the end of a job. A replaceable filter is integrated into the suction line and can be easily replaced while emptying the water trap. The onboard pre-calibrated O2 sensors are easily field-replaceable, allowing for reduced downtime. Integral manometer functionality and optional manometer tube accessory allows for monitoring of system and flue pressures. Integrated start-up zeroing makes this unit a great ambient and flue gas CO detector. Displays PPM for CO, preventing local CO poisoning hazard, as well as setting fuel to the correct efficient burn. The Yellow Jacket® combustion analyzer CA502 and CA502P include all the features needed to safely service customers efficiently and effectively.