Best Wireless Burglar Alarmsystem

10 Sets Pack of Surface Mounted Alarm Magnetic Contacts Door Window Reed Switch Sensor with Double Side Tape

  • Suitable for wooden/glass/plastic material doors.
  • For home burglar alarm system, important kits of home security..
  • Screws terminal connection inside , easy for mounting and connecting to systems..
  • Surface mounted with double side tape , ≥ 15mm operation gap.
  • NC type , normally closed : Switching OFF when door is opened.
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UHPPOTE Wired Shutter Roller Magnetic Overhead Door Contact Output NC/NO with Bracket

  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • Great for use in family and factory window, door. etc..
  • NO means Normally Open: when the magnet separate, the circuit is conductive( light on ).
  • When the magnet together, the circuit is not conductive (light off).
  • NC means Normally Closed: When the magnet together, the circuit is conductive (light on).
  • When the magnet separate, the circuit is not conductive (light off).
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Nascom - N1175W/ST - Recessed 3/8\ Mini Stubby Press Fit Switch/Magnet Set, Wire Leads (10 Pack)

  • 10 Brown ABS Normally Open Door Contact Switch.
  • Will make Sense Door Closer at Roughly ¾” or 15mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY OPEN: When the door or window is open, the contact will give an closed signal and when the door is closed the contact will give a open (circuit) signal..
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Fielect Rolling Door Contact Magnetic Reed Switch Alarm with for N.O. Applications OC-60

  • [Dimension] - Cable Length:460 mm；Sensing Distance: 50-70 mm.
  • Total Size: 105 x 50 x 10mm, 105 x 20 x 16mm (L*W*H).
  • [Normally Open] - NO means Normally Open: when the magnet separates, the circuit is conductive( light on ).
  • When the magnet together, the circuit is not conductive ( light off )..
  • [Material] - The magnetic switch alarm is with durable zinc alloy housing for better rust resistance.
  • [Widely Used] - This magnetic reed switch works with any access control or burglar alarm system available.
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QMseller MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch 2 Sets

  • Work as an anti-theft alarm, ideal for metal door and window.
  • NC means Normally Closed:When the magnet together, the circuit is conductive( light on ).
  • when the magnet separate, the circuit is not conductive ( light off ).
  • These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system.
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Snap Circuits Classic SC-300 Electronics Exploration Kit + Student Training Program with Student Study Guide | Perfect for STEM Curriculum Brown

  • Contains over 60 Snap-Together parts, build over 300 exciting projects.
  • Clear and concise illustrated manual included and available online.
  • Build a Radio, Doorbell, burglar alarm and more, no Tools Required.
  • Includes Snap case 7 heavy duty plastic case with custom foam inserts for housing your Snap Circuits parts.
  • Part of the extremely popular Snap-Circuits educational electronics series from Elenco Electronics.
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Pack of 5 A27 27A 12V MN27A Alkaline Battery

  • ★★★Fresh Continuos Productions and even More lasting life according with the Use. Convenient Blister Pack Allows retailing by Piece. Each....
  • ★★★Primarily used in garage door openers remote controls, car alarms remote controls, burglar remote Controls, Lighters, access control devices,....
  • ★★★Beautiful packing: You will get 5PCS 27A Batteries in Exact Blister Pack.
  • ★★★High Voltage 12 Volts - Highest Capacity & Long Lasting and High Performance Alkaline battery in the Market by the Alkaline High Voltage....
  • ★★★Also Known as: A27, 27A, G27A, LR27A, MN27, MN27BPK, 27GA, GP27A, L828, EL812, EL-812, CA22/ B-1, SNN4176A, ALK27A, A27BP, K27A, V27GA,....
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GDQLCNXB 2 Sets MC-33C Normally Closed Recessed Window Door Contact Sensor Alarm Magnetic Reed Switch

  • 3.NC means Normally Closed:When the magnet together, the circuit is conductive( light on ).
  • when the magnet separate, the circuit is not conductive ( light off ).
  • 4.Work as an anti-theft alarm, ideal for metal door and window.
  • 5.These are the door contact sensors that are in use with any and all commercial or residential card access systems as well as all security burglar alarm system.
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Critter Pricker Raccoon Deterrent Proven Humane Dog Cat Garden Wall Defender and Pest Control 10 connectable Spikes on Strips

  • Strong polypropylene patented snap hook design articulates very sharp spikes connect to make a mat to deter animal scat.
  • Invented by a professional proven results. Only product that connects to build protective mat.
  • Perfect for pools steps walls fences trash cans roofs Raccoons Cats and burglar anti climbing repellent.
  • Each box has 10 strips. Each strip is 1.5 inches wide and 18 inches long.
  • We staff a wildlife professional. Free advice jusk ask.
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Fielect Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.O. Applications OC-60

  • [Dimension] - Cable Length:460 mm；Sensing Distance: 50-70 mm.
  • Total Size: 105 x 47 x 9.5mm, 85 x 17 x 17mm (L*W*H).
  • [Normally Open] - NO means Normally Open: when the magnet separates, the circuit is conductive( light on ).
  • When the magnet together, the circuit is not conductive ( light off )..
  • [Material] - The magnetic switch alarm is with durable zinc alloy housing for better rust resistance.
  • [Widely Used] - This magnetic reed switch works with any access control or burglar alarm system available.
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