Wired MAGNETIC sensor 2 WIRE MAGNETIC SENSOR 2 Wire. Opening Gap 15 mm. Available In Black & White ABS Bodies. Epoxy Based Filling. 4 WIRE MAGNETIC SENSOR 4 Wire. Tamper Loop. Opening Gap 15 mm. Available In Black & White ABS Bodies. MGNETIC SENSOR MINI 2 Wire. Operating gap 15 mm. Ultra Small Mini Design. Can snap off screw mounting plate. MAGNETIC SENSOR CONCEALED 2 Wire. Opening Gap 15 mm. Concealed Type and easy install. MAGNETIC SENSOR 2 WIRE LONG Opening Gap 15 mm. Magnetic Contact 2 Wire with Long Housing. Available in Black & White ABS Bodies. MAGNETIC SENSOR 2 WIRE WITH COLLAR 2 wire. Available in Black & White ABS Bodies. Opening gap 15 mm. METAL MAGNETIC CONTACT LARGE Opening gap 40mm. Metal body. METAL MAGNETIC CONTACT SMALL Opening gap 30 mm. Available in metal body.