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| Best Seller  | DWYER INSTRUMENTS 490A-2 Digital Hydronic Manometer,30 psi Digital Hydronic Manometer, Includes (2) 6 ft High-Pressure Rated Tubing with Shut off Valves, 1/16 in x 1 1/2 in, 1/8 in x 3 in and 1/8 in x 1 1/2 in Pairs of Pressure Probes, 8 ft Poly Tubing, 90 deg Flare to 1/4 in NPT Fittings, Adjustable 8 in... ... more
DWYER INSTRUMENTS 490A-2 Digital Hydronic Manometer,30 psi Digital Hydronic Manometer, Includes (2) 6 ft High-Pressure Rated Tubing with Shut off Valves, 1/16 in x 1 1/2 in, 1/8 in x 3 in and 1/8 in x 1 1/2 in Pairs of Pressure Probes, 8 ft Poly Tubing, 90 deg Flare to 1/4 in NPT Fittings, Adjustable 8 in... | go to store |
 | DWYER INSTRUMENTS 477B-6 Digital Manometer, 0 psi to 50 psi Digital Manometer, Maximum Pressure 50 psi, Minimum Pressure 0 psi, Accuracy +/-0.1 Percent of Full Scale from 60 Degrees to 78 Degrees F, +/-1 Percent of Full Scale from 32 Degrees to 60 Degrees F, +/-1 Percent of Full Scale from 78 Degrees to 104... ... more
DWYER INSTRUMENTS 477B-6 Digital Manometer, 0 psi to 50 psi Digital Manometer, Maximum Pressure 50 psi, Minimum Pressure 0 psi, Accuracy +/-0.1 Percent of Full Scale from 60 Degrees to 78 Degrees F, +/-1 Percent of Full Scale from 32 Degrees to 60 Degrees F, +/-1 Percent of Full Scale from 78 Degrees to 104... | go to store |
| Best Seller  | DWYER INSTRUMENTS 1910-00 Air Pressure Switch,0.07to0.15 In. H2O Air Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 HP @ 250 V AC, 60 Hz, 1/8 HP @ 125 V AC, 15 A @ 120 to... ... more
DWYER INSTRUMENTS 1910-00 Air Pressure Switch,0.07to0.15 In. H2O Air Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 HP @ 250 V AC, 60 Hz, 1/8 HP @ 125 V AC, 15 A @ 120 to... | go to store |
 | DWYER INSTRUMENTS 1910-10 Pressure Switch Series 1900 Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 hp @ 250 V AC, 60 Hz, 15 A @ 120 to 480 V AC, 60 Hz,... ... more
DWYER INSTRUMENTS 1910-10 Pressure Switch Series 1900 Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 hp @ 250 V AC, 60 Hz, 15 A @ 120 to 480 V AC, 60 Hz,... | go to store |
 | DWYER INSTRUMENTS 1910-20 Pressure Switch Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 hp @ 250 V AC, 60 Hz, 15 A @ 120 to 480 V AC, 60 Hz,... ... more
DWYER INSTRUMENTS 1910-20 Pressure Switch Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 hp @ 250 V AC, 60 Hz, 15 A @ 120 to 480 V AC, 60 Hz,... | go to store |
 | DWYER INSTRUMENTS 1638-1 Large Diaphragm Pressure Switch Large Diaphragm Pressure Switch, Application Air Conditioning, Duct Heater Control, Industrial HVAC, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 HP @ 250 V AC, 60 Hz, 1/8 HP @ 125 V AC, 15 A @ 120 to 480 V AC,... ... more
DWYER INSTRUMENTS 1638-1 Large Diaphragm Pressure Switch Large Diaphragm Pressure Switch, Application Air Conditioning, Duct Heater Control, Industrial HVAC, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 HP @ 250 V AC, 60 Hz, 1/8 HP @ 125 V AC, 15 A @ 120 to 480 V AC,... | go to store |
 | DWYER INSTRUMENTS 1910-1 Mfg Dwyer Inst Mod 1910-1 Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 hp @ 250 V AC, 60 Hz, 15 A @ 120 to 480 V AC, 60 Hz,... ... more
DWYER INSTRUMENTS 1910-1 Mfg Dwyer Inst Mod 1910-1 Pressure Switch, Application Frost and Ice Detection, Clogged or Dirty Filter Detection, Air Flow Control, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1/4 hp @ 250 V AC, 60 Hz, 15 A @ 120 to 480 V AC, 60 Hz,... | go to store |
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