... microprocessor 24 loops relay alarm output WP-R303C mid-long chart color screen paperless recorder, which has 40 channels universal ... 10.4 inch 640×480 lattice TFT high brightness color chart LCD display, CCFL backlight, clear picture, wide visual ... range: -1999~19999, also support vacuum degree calculation and scientific counting process display.Indicate simultaneously low lower limit, lower limit ...