â·ÃÊͺ¶ÒÁÃÒ¤Ò à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹µèÒ§ Differential Pressure Meter Manometer > PS115 à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ PS115 Differential Pressure Manometer (15psi) 11 Measurement Units, High Resolution Features : Differential pressure manometer with ±15psi measurement range 11 measurement units Manually store/recall 99 readings Max/Min recording and Relative time stamp Large LCD display with backlighting Data Hold and Auto power off with disable Zero function for offset correction or measurement Complete with six AAA batteries, two connection hoses and hard carrying case Specifications Range Max Resolution Basic Accuracy psi 15 psi 0.001 psi ±1% FS kPa 103.42 kPa 0.01 kPa mmHg 775.7 mmHg 0.1 mmHg kgcm2 1.055 kgcm2 0.001 kgcm2 mbar 1034.2 mbar 0.1 mbar bar 1.034 bar 0.001 bar inH2O 415.20 inH2O 0.01 inH2O mmH2O 10546 mmH2O 1 mmH2O inHg 30.5 inHg 0.001 inHg ftH2O 34.6 ftH2O 0.001 ftH2O ozin2 240.00 ozin2 0.01 ozin2 Dimensions 6.7 x 3.1 x 1.4" Differential Pressure Extech Manometer PS115 à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹µèÒ§ à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ