Differential pressure (internal sensor) Measuring range: 0 to +200 hPa Accuracy: ±0.03 hPa (0 to +3 hPa), ±1.5 % of mv (+3.1 to +40 hPa), ±2 hPa or ±1 % of fsv (41 to +200 hPa) Resolution: 0.01 hPa
Pressure measurement (included external high-pressure probe) Measuring range: 0 to 25 bar Accuracy: ±0.6 % of fsv (0 to +10 bar), ±0.6 % of fsv (>+10 to +25 bar) Resolution: 10 hPa
Temperature – TC Type K (NiCr-Ni) Measuring range: dependent on probe type used Accuracy: ±0.4 °C (-100 to +200 °C), ±1 °C (Remaining Range) Resolution: 0.01 °C
General Technical Data Weight: 600 g Approx. Dimensions: 219 x 68 x 50 mm Interface printer: Infrared Warranty: 2 years Measuring rate: auto 1 s to 24 h, fast 0.04 s Data transfer: RS232 PC software: Easyheat Memory: approx. 25,000 measuring values
testo 312-4 differential pressure meter, testo 312-4 hose set, balloon pump with release screw, conical test plug 1/2”, conical test plug 3/4”, testo fast printer (0554 0549), pressure set for gas pressure measurements on heating systems, high-pressure plug 3/8” und 3/4”, high-pressue plug 1/2” and 1”, high-pressure probe 1 up to 25 bar and system case