| Comet C3121P Specifications | 
        
        
            | Technical parameters | 
            Value | 
        
        
            | Measured Value | 
            Temperature + Relative Humidity | 
        
        
            | Construction Type | 
            Compressed Air Humidity up to 2.5MPa | 
        
        
            | Temperature Measuring Range | 
            -30 to 105 °C | 
        
        
            | Data Logging Function | 
            No | 
        
        
            | Operating temperature range | 
            -10 to +60°C | 
        
        
            | Temperature sensor | 
            RTD Ni1000/6180ppm | 
        
        
            | Accuracy of temperature measurement with built-in sensor | 
            ±0.4°C | 
        
        
            | Accuracy of air humidity measurement | 
            ±2.5%RH from 5 to 95% at 23°C, resolution 0.1% | 
        
        
            | Dew point temperature range | 
            -60 to +80 °C | 
        
        
            | Accuracy of dew point temperature (for more details see instruction manual) | 
            ±1.5°C for dew point temperature +10°C and higher at ambient temperature +25°C | 
        
        
            | Accuracy of dew point temperature | 
            ±2.0°C for dew point temperature 0°C at ambient temperature +25°C | 
        
        
            | Accuracy of dew point temperature | 
            ±3.0°C for dew point temperature -10°C at ambient temperature +25°C | 
        
        
            | Accuracy of dew point temperature | 
            ±6.0°C for dew point temperature -20°C at ambient temperature +25°C | 
        
        
            | Power | 
            battery 9V | 
        
        
            | Battery life | 
            4 months typically | 
        
        
            | Dimensions | 
            141 x 71 x 27 mm, probe length 150mm, probe diameter 18mm | 
        
        
            | IP protection | 
            IP20 instrument, IP40 T+RH probe | 
        
        
            | Mechanical connection of the probe | 
            G1/2 with O-Ring | 
        
        
            | Length of the probe cable | 
            1m, 2m or 4m optionally | 
        
        
            | Weight including battery without probe | 
            approximately 150 g | 
        
        
            | Warranty | 
            3 years |