supply of ultrasonic thickness gaugeultrasonic thickness gauge,ultrasonic thickness gauge time brand or similar 1) measuring range;0.75-300 mm ( steel ), 2) tol erance : c( 1% h+0.1 mm) ( h means the thickness of teased piece,3) display :4- digital lcd with backlight , 4) surface temperature :10 degree c + 60 degree c, 5) battery indicator : low battery voltage indicator ,6 ) power su pply : 2 pcs. aa batteries 1.5 volt, 7) working time : 250 hours, 8) dimension : 126 mm degree c 68 mm degr ee c 23 mm , 9) weight : approx. 250 gm including batteries, 10) sound velocity range : 1000-9999 m/s, 11) disp lay resolution : 0.1 mm, 12) diameter or transducer o10 ( standard) o6 ( optional ) , 13) measuring range for stee l pipe :o20 degree c , 3.0mm with all necessary standard accessories. [ warranty period: 30 months after the d ate of delivery ]