Door Window Contact Magnetic Reed Switch Alarm Device Sensor Normally Open Set

Description: Door Window Contact Magnetic Reed Switch Alarm Device Sensor Normally Open Set Specifications: Color: White Material: ABS Dimensions: 27(mm) x 14(mm) x 8(mm) Switch pattern: N/O normally open, alarm-on-broken Contact capacity: Maximum switch current: 0.5Amp Voltage: DC100V 0.5A Rated power: 10W Actuation distance: 20-25mm Wire lead: 22 AWG, About 300mm long Mounting method: SMD (by screws or double-sided tapes) Recommendations in application: wooden door, window Features: 1. Easy installation, reliable performance 2. Good characteristic of abrasion-proof 3. Best Choice for you to protect family 4. There are two types of reed switches: "normally open" reed switches and "normally closed" reed switches. 5. The metal reeds on a normally open switch stay open when there is no magnet near the switch. In the presence of a magnetic field, the contacts of a normally-open reed switch will close. 6. A normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open. Package Included: 1x Reed switches 4x Screws More Details: