Models View all HEYCO - Plastic connector gland Ø1/2" 6 190 0 Low Pressure Cut Out (Auto Reset) 9 79 0 High pressure cut out control (Manual reset) 9 112 4 ASCON Tecnologic - MP-D2 7 184 1 Mean Well - NDR - 74-25 14 591 2 Bitzer - Differential compression sensor 3 62 0