| Parameter | Range | Resolution | Accuracy | 
        
            | Temperature Measurements | 
        
            | Flue Temperature | 32 - 1112˚F (0 - 600˚C) | 1.0 ˚F/˚C | ±(0.3% reading+3.6˚F(2.0˚C)) | 
        
            | Inlet Temperature (Internal sensor) | 32 ~ 122 ˚F (0-50˚C) | 1.0 ˚F/˚C | ±(0.3% reading+1.8˚F(1.0˚C)) | 
        
            | Inlet Temperature (External sensor) | 32 - 1112˚F (0 - 600˚C) | 1.0 ˚F/˚C | ±(0.3% reading+3.6˚F(2.0˚C)) | 
        
            | Gas Measurements | 
        
            | Carbon Monoxide (CO)*1 | 0 - 60 ppm 61 - 2,000ppm nom
 4,000ppm max for 15 mins
 | 1ppm
 1ppm
 1ppm
 
 | ±3ppm ±5% of reading
 Not Specified
 | 
        
            | Carbon Dioxide (CO2)*1 | 0 - 20% | 0.1% | ±0.3% volume | 
        
            | Calculations | 
        
            | Oxygen (O2)*2 | 0 - 21% | 0.1% | ±0.3% | 
        
            | Efficiency*2 | 0 - 99.9% | 0.1% | ±1.0% of reading | 
        
            | Excess Air*2 | 0 - 250% | 0.1% | ±0.2% of reading | 
        
            | CO/CO2 ratio*2 | 0 - 0.999 | 0.0001 | ±5% of reading | 
        
            | Pre-programmed Fuels | Natural gas, Propane, Butane, LPG, Light Oils (28/35 sec), Wood Pellets | 
        
            | Storage Capacity | 20 Combustion tests | 
        
            | General Specifications | 
        
            | Operating Altitude | 2000m (6,561 ft.) | 
        
            | Storage Altitude | 10,000m (32,808 ft.) | 
        
            | Operating Temperature | 32°F to 104°F (0°C to 40°C) at 10 - 90% R.H | 
        
            | Pollution Degree | 2 | 
        
            | Dimensions | Handset: 7.9” (200mm) x 3.5” (90mm) x 1.8” (45mm) Probe: (L) 11.8” (300mm) x (D) 0.25” (6mm) with 7.8” (200mm) 6ft (3m) neoprene hose
 | 
        
            | Weight | 2.2lbs (1kg) | 
        
            | Certifications | EMC EN 50081-1, EN 50082-1, CE | 
        
            | Battery Type | 4 x 1.5V AA | 
        
            | Battery Life | >8Hrs using AA Alkaline | 
        
            | Power Supply Input | 110V AC Output: 9V DC Regulated |