residential combustion analyzer by forensics | flue gas analyzer | co, o2, coaf & ea | water trap, particle & nox filters | color display, graphing, data logging | usa nist calibration | forensics detectors fd a professional residential combustion analyzer + handheld pump with o2 & co sensors with usa nist calibration. 32-bit microprocessor, color screen, realtime graphing and alarm-logging. ideal for hvac professionals, contractors or maintenance engineers for residential boilers, heaters or furnaces. the display screen shows co, o2, coaf (co air-free) and ea (excess air %). the detector can also be as (1) as a ambient detector for general air quality measurements (2) as a spot detector or (3) as a combustion and/or flue gas analyzer. please note, this analyzer does not detect flue temperature nor calculate combustion efficiency. product comes with aluminum hard case, the analyzer containing co and o2 sensors with a strong niobium magnet for mounting on appliances while testing, electronic pump with stainless probe, hose assembly with 3 feet of high temp silicone tubing, water trap, particle and nox filters with sensor cap, screw to mount sensor cap to the analyzer, usb charging cable, usb charger, calibration certificate, clear english manual & instructions. analyzer specifications: the detector incorporates electrochemical sensors with oxygen (o2) 0-30% with 0.1% resolution and carbon monoxide (co) 0-999 with 1ppm resolution. comes factory calibrated. accuracy: ≤±5% f.s. response time: ≤60s. working environment: 32f~113f, <95%rh (no dew). power source: dc3.7v li-on battery, 2000mah. gas sensor life: 2-3 years. recommended calibration period: every 6 months. explosion-proof grade: atex certified exib iib t3 gb. ip65 certified. weight: 400g (with battery). dimensions: 130mm×67mm×30mm (l × w × h). pump specifications: rechargeable dc3.7v li battery 1800mah charged via usb connector. pump lcd shows ambient temperature, time, date and backlight high resolution lcd is included. temperature: 32f~140f. humidity: <95%rh non-condensing. voltage: dc3.0v li battery 1800mah. flow rate: 0.5 lpm. noise: <60db. weight: 140g (with battery). size: 65x30x225mm.