Dwyer Instruments

Dwyer A3100 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3150 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3201 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3202 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3203 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3204 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3205 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3210 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3215 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3220 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3230 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...

Dwyer A3300-0 Features Bezel and front cover (with set point knobs and zero adjustment screw) removed to expose Photohelic® switch/gage set point mechanism (cover is clear polycarbonate plastic)...