â·ÃÊͺ¶ÒÁÃÒ¤Ò à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹µèÒ§ Differential Pressure Meter Manometer > PS101 à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ PS101 Differential Pressure Manometer (1psi) Features : Differential pressure manometer with ±1psi 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 1 psi 0.001 psi ±1% FS kPa 6.89 kPa 0.01 kPa mmHg 51.7 mmHg 0.1 mmHg kgcm2 0.07 kgcm2 0.001 kgcm2 mbar 68.9 mbar 0.1 mbar bar 0.069 bar 0.001 bar inH2O 27.68 inH2O 0.01 inH2O mmH2O 703 mmH2O 1 mmH2O inHg 2.036 inHg 0.001 inHg ftH2O 2.307 ftH2O 0.001 ftH2O ozin2 16.00 ozin2 0.01 ozin2 Dimensions 6.7 x 3.1 x 1.4" Differential Pressure Extech Manometer PS101 à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹µèÒ§ à¤Ã×èͧÇÑ´¤ÇÒÁ´Ñ¹ÅÁ