Best Burglar Alarm sensor

D1D9 Home Burglar Alarm System 23 pcs kit Wireless DIY GSM Auto Dialer for House Security

  • REMOTE CONTROL You can control this burglar alarm system Arm/Disarm/Voice Monitoring /Intercom by cellphone anywhere(Need a T-mobile SIM card).
  • SCARE BURGLAR AWAY When someone trigger this system that will be alarm to scare thief away and also will make a phone or sending a message to someone which you save the phone.
  • BUILT-IN BATTERY This system work well when someone cut wires or power off. You don’t worry other people intrude your house when power off.
  • CELLPHONE FUNCTION This main unit can make the phones like a cellphone.(Work with T-Mobile Card,SIM card isn't including in the package).
  • WARM PROMPT: The batteries are gifts. If the batteries are dead,pls buy it by yourself. If you don't know where buy it,pls contact us..
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CPVAN WiFi Door Alarm System 2nd Gen , DIY Wireless Home Security Kit for Kids Elders Safety 1 Remote Control 2 Door Window Sensors 1 Base Station Fit House Garage Apartment Works with Alexa.

  • A great fit for home security: The receiver working together with the window door sensors, making it a burglar alarm system and your 24h private....
  • Powerful DIY: SmartLife App has built-in defense zone functions and product attributes and has Armed, Disarmed, and Home modes, you can give....
  • Protecting all aspects: When the door or windows been opened, the receiver will sound an alert and you can receive mobile notifications so that you....
  • Expandability: Add additional components and accessories at any time. Up to 100 wireless detectors or doorbell buttons can be added. In the future, we....
  • Easy installation(2.4GHz Network): All accessories in the set are already paired before leaving the factory. This door alarm built in a Bluetooth....
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Door Chime-Wireless Door Open Chime with 1000ft Range LED Indicators- Door Entry Chime with 55 Chimes 5 Adjustable Volume Mute Mode for Business/Home/Store 3 Receiver 3 Magnetic Door Window Sensor

  • 【Monitor Your house with Wireless Door Chime】This entry alert chime can be a good reminder for you if you have toddler who try to sneak out of....
  • 【Keep Your Home Security 】This door sensor chime for business when burglar opens door and helps deter break-ins(business door chime activates when....
  • 【Mute To 120 DB Loud Soud 】This door alarm with chime has 5 adjustable volume from 0-110 dB silent mode, 0dB won't disturb a sleeping baby. Memory....
  • 【Long Range & Expandable】The door chime wireless door sensor has 1000feets far enough to cover every door in your house or store. And each door....
  • 【Easy To Install 】 For this wireless entry alert chime,please install AFTER pairing, just plug the receiver into outlet, tear the double-side....
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Fielect 10Pcs Recessed Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White 28V 0.3A ABS Sensing Distance 15-25mm

  • [Dimension] - Cable Length:250 mm;Sensing Distance:15-25 mm;Total Size: 14mm x 6.5mm, 11.7 x 5.7mm (L*D).
  • [Normally Closed] - N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ).
  • when the magnet separates, the circuit is not conductive ( light off )..
  • [Widely Usedl] - This Recessed Door Contact Sensor works with any access control or burglar alarm system available.
  • [Note] - the Magnetic Door Switch must be installed according to the sensing distance. It can only provide a switch signal to the transmitter. It cannot directly load the power, nor directly connect the lamp!.
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Ansmann Rechargeable Battery, Max-E, Pack of 2, Nickel Metal Hydride, 2100 Mah, 1.2 V, Aa Rohs Compliant: Na - 5030992

  • ... These batteries are an economical replacement for disposable / alkaline batteries - These batteries retain 80% charge for up to one year in storage.OTHER USES: Use with trackball, Apple mouse keyboard & trackpad, garage door remote controller, flashlight, kids toy, electronic pets, radio controlled car kids, alarm burglar sensors & system, alarm clock, remote control, flash gun, flashgun, Glade auto spray air freshener, Airwick air freshener, diffuser, thermometer, torch, mini sewing machine, travel electric razor, shaver, eyebrow nose & facial trimmer, handheld fan.
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Fielect Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.O./N.C. Applications MC-58

  • [Dimension] - Sensing Distance: 30-50 mm.
  • Total Size: 106 x 16 x 16 mm / 4.17" x 0.75" x 0.39" (L*W*H)003c/br003e.
  • [N.O./N.C.] - N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ).
  • when the magnet separates, the circuit is not conductive ( light off ). N.O. means Normally Open: when the magnet separates, the circuit is conductive( light on ).
  • When the magnet together, the circuit is not conductive ( light off ). When make order, pls check carefully!.
  • [Widely Used] - This Door Contact Switch Sensor works with any access control or burglar alarm system available.
  • [Note] - the Magnetic Door Switch must be installed according to the sensing distance. It can only provide a switch signal to the transmitter. It cannot directly load the power, nor directly connect the lamp!.
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DIY for Renters: Don't Call the Landlord

  • SCARE BURGLAR AWAY When someone trigger this alarm system that will be alarm to scare thief away and also will make a phone or sending a message to someone which you save the phone number on the main unit.(No chime,No Wifi,Only support 2G T-mobile SIM card).
  • BUILT-IN BATTERY This system work well when someone cut wires or power off. You don’t worry other people intrude your house when power off.
  • REMOTE CONTROL You can control this gsm alarm system Arm/Disarm/Voice Monitoring /Intercom by cellphone anywhere.
  • EMERGENCY HELP You can press an alarm button on the remote control when some emergency thing happen, this system will go off right now and will make a phone..
  • WARM PROMPT: The batteries are gifts. If the batteries are dead,pls buy it by yourself. If you don't know where buy it,pls contact us..
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DYNWAVE 50cm X 6063 Aluminium Alloy Al Si, 8mm

  • 1 White ABS Normally Closed Miniature Door Contact Switch 5/8 by 3/8 with screw terminals to terminate alarm system wires.
  • Will Sense Door Closer at Roughly 1/2” or 10mm.
  • This Contact Works with Any Access Control or Burglar Alarm System Available.
  • NORMALLY CLOSED: When the door or window is open, the contact will give an open signal and when the door is closed the contact will give a closed (circuit) signal..
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Fielect Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.C. Applications MC-52

  • [Dimension] - Cable Length:300 mm;Sensing Distance: 25-35 mm.
  • Total Size: 49 x 19 x 9.8mm / 1.93" x 0.75" x 0.39" (L*W*H).
  • [Normally Closed] - N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ).
  • when the magnet separates, the circuit is not conductive ( light off )..
  • [Material] - The magnetic reed switch alarm is with durable zinc alloy housing for better rust resistance.
  • [Widely Used] - Magnetic Reed Switch Alarm works with any access control or burglar alarm system available.
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Fielect Rolling Door Contact Magnetic Reed Switch Alarm with 2 Wires for N.O. Applications OC-60B

  • [Dimension] - Cable Length:460 mm;Sensing Distance: 50-70 mm.
  • Total Size: 105 x 50 x 9.5mm, 104 x 18.6 x 16.5mm (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] - Magnetic Reed Switch Alarm works with any access control or burglar alarm system available.
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