We have two (2) Dwyer Series 530 Air Flow Switches to sell. They are brand new, still in their packaging. $50 each OBO. Service: Air and non-combustible gas flow. Vane: SS. Temperature Limit: 180°F (82°C). Switch Type: SPDT. Electrical Rating: 125 VAC - 9.8 amp full load 58.8 amp locked rotor. 250 VAC - 4.9 amp full load 29.4 amp locked rotor. Pilot Rating: 470 VA at 125, 250 VAC. Resistive: 15 amp at 125, 250, or 480 VAC. Electrical Connections: Screw type terminal. Conduit Connection: 7/8˝ conduit hole. Mounting Orientation: Horizontal duct flow Set Point Adjustment: Screw type. Weight: 1 lb, 1 oz (481.94 g) $25 each OBO. Item is sold as is. No returns, no refunds, no warranties.