Sentrol 2505A-L Series Door Contact Lot Of 2 and 15 similar items

SENTROL 2505A-L Series Door Contact LOT OF 2 BRAND NEW The Sentrol 2505A-L is a heavy-duty magnetic door contact used in alarm and access control systems. ? It detects whether a door, gate, or barrier is open or closed by using a magnet + reed switch: Door closed ? magnet aligns ? circuit closed Door opens ? magnet separates ? alarm signal triggered ?? Key specifications Type: Surface-mount magnetic contact Contact: Typically normally open (NO) Gap distance: ~3 inches (wide gap) Cable: 3 ft armored stainless steel lead Voltage rating: up to 100V Current: ~0.5 A Housing: Extruded aluminum (industrial-grade) Environmental rating: IP67 (dustproof water-resistant) Temperature range: approx. -40F to 150F ? Where it?s used This is not a typical residential sensor?it?s built for harsh environments: Commercial roll-up doors Warehouse overhead doors Gates fences Industrial facilities Metal door installations ? The wide gap (3") makes it ideal where alignment isn?t perfect (like large doors). ? Construction durability Fully potted in polyurethane ? protects against moisture/vibration Hermetically sealed reed switch ? long life (~10 million cycles) Armored cable ? resists tampering and physical damage SHELF: 15 BIN 3 SA