Description:<br /><br />100% brand new and high  quality<br /><br />Technical Parameters:<br />Temperature measurement range: -50 ~ +150 ° C<br />Measurement accuracy: ± 0.5 ° C<br />Resolution: 0.1 ° C<br />Probe connection: 2 x plug-in (NTC)<br />Pressure measurement range: -1 ~ +60 bar<br />Measurement accuracy: ± 0.5% of full scale<br />Resolution: 0.01 bar<br />Probe connection: 3 x 7/16 &amp;amp;amp;amp;amp;quot;- UNF<br />Overload relative pressure (high pressure): 65 bar<br />Vacuum measuring range: -1 ~ 0 bar<br />Diameter: 200 x 109 x 63 mm<br />Operating temperature: -20 ~ +50 ° C<br />Battery life: 250 h (without illumination， without Bluetooth®)<br />Storage temperature: -20 ~ +60 ° C<br /><br />feature: <br />549 electronic refrigerant table group | Germany testo549 basic electronic refrigerant table features:<br />There are 60 commonly used refrigerants in the instrument， which can be selected from the favorites;<br />Optional clamp surface temperature probe， can automatically calculate the supercooling (overheating) value;<br />Temperature compensation leak test;<br />Two temperature compensated pressure sensors.<br />Compared with the traditional dual-pressure table， testo 549 basic-level electronic refrigerant table group has many advantages: the instrument has 60 kinds of commonly used refrigerant， can be selected from the Favorites. Optional clamp thermometer， can automatically calculate the supercooling (overheating) value. The instrument makes it easier to measure the cooling system and the heat pump system.<br />Do you notice the use of traditional analog dual pressure tables in the installation and maintenance of refrigeration systems and heat pumps? If this is the case， our basic level of electronic refrigerant table group is your perfect choice. Built-in 60 kinds of refrigerant list， for your daily work to provide practical solutions:<br />    Two temperature compensated pressure sensors: free from temperature， to ensure fast and accurate measurement of high and low pressure， and automatic calculation of evaporation and condensation temperature<br />    Two temperature probe interfaces: optional pipe clamp thermometer， you can simultaneously and real-time calculation of overheating and overcooling.<br />    Refrigeration system leak test: the instrument can be system temperature compensation leak test， rough sealing test. For this reason， the initial system pressure is compared with the system pressure at the end of the measurement. If there is a leak， the difference can be displayed.<br />    Can be used for standard refrigerants: 60 of the most common refrigerants are stored in the instrument<br />You can also view the temperature difference through 2-way manifolds. Automatic heat pump mode， which makes it unnecessary to switch the refrigerant hose， is also really practical.<br />Basic electronic refrigerant table group: solid and practical<br /> 549 is equipped with a solid shell， effective protection of external impact. The back comes with a hook to ensure that the instrument is always in a safe position during the measurement. The large backlit display ensures that you can clearly read the data when lighting conditions are low.<br /><br />style: convenient and practical<br /><br />color: as the picture shows<br /><br />package: 1 pcs tool in a pack