Switches KPH Compact Aluminum Pressure Switch Switch Ranges: -14.0 to 0 Through 580-6100 PSIG SPDT Snap Action Switch KPS/KAS Marine & Industrial Pressure Switch Numerous World-Wide Marine Agency Approvals Switch Ranges: 0-35 Through 87-870 PSIG KRT Marine & Industrial Pressure Switch with Adjustable Dead-band Optional External Reset Numerous World-Wide Marine Agency Approvals Switching Ranges: -14.7 to 0 Through 145-435 PSIG PDD Digital Pressure Switch Ranges: 0-30" Hg Vacuum through 0-5800 PSIG Stainless Steel Construction Fully Programmable