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Diymore Magnetic Reed Switch Magnetic Door Switch Magnetic Contact Switch Normally Open Closed NC NO Door Alarm Window Security

Features: 1.Easy to use and easy to install 2.Stable performance and long service life 3.Normally open and normally closed as one convenient and flexible 4.It is not easily broken and has characteristics such as compression resistance impact resistance... more

Linyer 5V Smart Garage Switch Wireless WiFi Opener Mobile Phone Remote Control Voice Reminder Alarm Portable Switches Controller

Description: Practical: This garage door switch is a practical tool that makes you can open or close the door from almost anywhere. Easy to use: This WiFi garage door switch supports APP control and voice control. It is easy to use. Reminder: This WiFi... more

2Sets Magnetic Reed Switch Normally Open Closed NC NO Door Alarm Window Security/Magnetic Door Switch/Magnetic Contact

About this item ➤➤Product Name: Magnetic Door Swith; Maximum Switch Voltage: 100V;Contact Capacity: 500(mA) (Maximum Switch Current);Rated Power: 10W(Maximum Switch Power); Contact Type: NC/NO/COM Trigger Range: 5-20mm; ➤➤Great for alarm Relay... more

Magnetic Reed Switch, 10 Pack NC Ring Alarm Contact Sensor Switch, Brown

Enhance your home or office security with our magnetic reed switch. This wired recessed door and window contact is good for detecting the opening and closing of the door and window. more

Magnetic Reed Switch, 5 Pack NO NC Ring Alarm Contact Sensor Switch

Enhance your home or office security with our magnetic reed switch. This wired recessed door and window contact is good for detecting the opening and closing of the door and window. more

Magnetic Reed Switch, 4 Pack NC Ring Alarm Contact Sensor Switch

Enhance your home or office security with our magnetic reed switch. This wired recessed door and window contact is good for detecting the opening and closing of the door and window. more

5 Pcs Magnetic Switch Magnetic Reed Recessed Magnetic Door Contact Door Alarm Switch Recessed Reed

Description This item are 5pcs plastic reed which are operated by an applied magnetic field. It is designed for use with alarm systems great for use in family and factory window door. etc. Easy to install and use. Features -Color: Black -Material:... more

Carevas Acousto-optic alarm Alarm 2 Relay Alarm Status T201 Temperature 2 Relay Output Relay Switch T201 Remote Relay Switch SMS Alarm 2 Temperature Alarm Temperature Relay Funien

GSM Remote Relay Switch Access Controller T201 GSM Temperature Alarm 2G/3G/4G Power Status Monitoring Power Failure SMS Alarm 2 Relay Output Temperature Sensor * Automation system when the temperature power supply alarm or normal it can link to Realy1... more

Alarm Magnetic Garage Door Rolling Door Contact Switch Sensor Home Store Security Contact Magnetic Reed Switch Alarm

Specifications: Main material: Alloy plating shell /stainless steel pipe thread /Reed switch Power Requirements: 1*23A 12V battery (Included) Working current: less than 10mA Quiescent Current: less than 3uA Transmit Freqency: 433MHz Wireless... more

Walmeck Acousto-optic alarm Temperature Alarm SMS Alarm 2 Relay Switch T201 Alarm Status T201 Temperature 2 Relay Output Remote Relay Switch Relay Output Temperature Alarm 2 Relay

GSM Remote Relay Switch Access Controller T201 GSM Temperature Alarm 2G/3G/4G Power Status Monitoring Power Failure SMS Alarm 2 Relay Output Temperature Sensor * Up to 200 authorized phone numbers. The 1st ~3rd user numbers can receive SMS and the 4th... more

5 pcs White Recessed Door Contacts NC Security Alarm Window Sensors With Magnetic Reed Switch. These ¾� Door Contact Position switches (DCS) Work with All Access Control and Burglar Alarm Systems

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. The door position switches operate with a built an internal magnetic reed switch that closes... more

Pristin Acousto-optic alarm T201 Temperature Alarm 2 Relay Remote Relay Switch Alarm Status Status 2 Relay Output SMS Alarm 2 Temperature Alarm Relay Switch T201 FA SMS

GSM Remote Relay Switch Access Controller T201 GSM Temperature Alarm 2G/3G/4G Power Status Monitoring Power Failure SMS Alarm 2 Relay Output Temperature Sensor * Automation system when the temperature power supply alarm or normal it can link to Realy1... more

Mini WiFi Security Cameras HD 1080P Smart Camera with All Day/Alarm/Timer Recording Indoor Monitor for Pets Kids

Features: Customizable Recording Settings: Small video recording camera offers three recording options to suit your needs - all day recording alarm recording and timer recording. With these options you can capture exactly what you need and save storage... more

GSM SMS Temperature Alarm Power Failure Alert Remote Control Monitoring Support Timer Report

Condition: 100% Brand NewItem Type: Temperature Alarm Material: ABSColor: As picture shownRated Voltage: DC 9V-24V / 1AWorking Temperature: -10℃-+60℃Storage Temperature: -20℃-+60℃Relative Humidity: 10-90% No CondensationWorking Frequency: GSM:... more

Heat Timer 925008-00 Smoke Alarm Receiver for use with MLS And MLSA Smoke Alarm Systems

Heat Timer 925008-00 Smoke Alarm Receiver for use with MLS And MLSA Smoke Alarm SystemsReplaces 925008-01 more

GSM SMS Temperature Alarm Power Failure Alert Remote Control Monitoring Support Timer Report

1�Remotely monitoring site temperature power status through wireless GSM Network. When the temperature power status exceed high threshold or low threshold value it will send SMS alert or call to 6 preset mobile phone immediately. 2�An automation... more

OC-60B NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch

Description: 1.Actuation Distance: 50-70mm.Aluminum Alloy Housing Stainless Steel Pipe. 2.The reed switch is an electrical switch operated by an applied magnetic field. 3.Designed for use with alarm systems. Great for use in family and factory window... more

High Sensitive Vibration Switch Sensor Module SW-18010P Normally Open Alarm Sensor Module for Arduino 3 pcs

Description: 1.A fixed bolt holes for easy installation. 2.The comparator output signal clean good waveform driving ability is strong for more than 15 ma. 3.Use the LM393 wide voltage comparator. Adopt SW-18010P Vibration sensor. 4.Used for various... more

Dazzduo Sensor Home Immersion Sensor Detector Walmeck Over Alarm House Leak Level Security Probe System null Wired Leeofty Switch Overflow Water JOYID for SIMBAE

Wired Water Immersion Sensor Water Level Overflow Alarm Leak Detector Switch Probe for Home House Security Alarm System Case Material: ABS Detecting Material: Water Package Weight: Approx. 16g / 0.56oz *Ideal water intrusion warning for homes... more

2 Pack Overhead Garage Door Floor Alarm Switch Contact Sensor Track Mounted

Overhead Door Contact or Switch with magnet and bracket Heavy duty Track Contact Sturdy polished aluminum die-cast housing Magnet mounted on adjustable bracket Wide operating 3 more

1 Set RC-33B NC+NO Magnetic Window Door Contact Alarm Reed Switch Recessed

Description: Easy to install and easy to use. Widely used in security window door carbinet contact. Recessed mounting white ABS fireproof plastic shell which has a long machanical life. more

Ana 2Set HC-52 Alarm Security Rolling Garage Door Contact Magnetic Reed Switch

Description: 1.Silver gray zinc alloy housing. 2.The reed switch is an electrical switch operated by an applied magnetic field. 3.Designed for use with alarm systems. Great for use in family and factory sash door. etc. 4.Screw Mounted for easily... more

JINGT 2Set HC-52 Alarm Security Rolling Garage Door Contact Magnetic Reed Switch

Description: 1.Silver gray zinc alloy housing. 2.The reed switch is an electrical switch operated by an applied magnetic field. 3.Designed for use with alarm systems. Great for use in family and factory sash door. etc. 4.Screw Mounted for easily... more

BAMILL 2Set HC-52 Alarm Security Rolling Garage Door Contact Magnetic Reed Switch

Description: 1.Silver gray zinc alloy housing. 2.The reed switch is an electrical switch operated by an applied magnetic field. 3.Designed for use with alarm systems. Great for use in family and factory sash door. etc. 4.Screw Mounted for easily... more

OC-55 NO Alarm Security Rolling Gate Garage Door Contact Magnetic Reed Switch

Description: 1.Actuation Distance: 40-50mm. Zinc Alloy Housing Stainless Steel Pipe. 2.The reed switch is an electrical switch operated by an applied magnetic field. 3.Designed for use with alarm systems. Great for use in family and factory window... more

2 Pack Overhead Garage Door Floor Alarm Switch Contact Sensor Track Mounted

18 long PVC Cable with armored sleeve Wide for reduced false alarms Magnet included with contact and bracket When the magnet is next to the switch the loop is closed When the magnet is pulled away the loop opens Package of 2 more

1 Set NO NC Magnetic Door Window Contact Sensor Alarm Reed Switch Fit for GPS Alarm or Other Device with 2 Screws

brand new and high quality Features: Exquisite workmanship high efficiency stable working performance. Premium material ensures maximum strength and durability for long lasting usage. Normally open type: When the magnet and the reed switch are together... more

Flood Light Sensor Spotlight Wireless Switch Home Alarm Systems Motion Detector

Description Motion Door Human Wall Lamp Door and Window for Home Wall Lamp Use Features - Material: ABS.; - Color：Black; - Size:. 5X5. 8X4. 5CM; lamp motion door motion spotlight human body motion lamp more

Home E27 Infrared Motion PIR Sensor Automatic LED Light Lamp Holder Switch Alarm

brand new and high quality Suitable for places Corridor�toilet�basement�garage�and other places of automatic lighting. Features： Our products adopt the most advanced imported internal sensor and circuit when pedestrians into the sensing range... more

Carevas Wired Water Immersion Sensor Water Level Overflow Alarm Leak Detector Switch Probe for Home House Alarm System

Overview: Immersion probe can be used in conjunction with water leakage controller and it can be used on the ground or the limited height of water level space water detection. When the probe detected water leakage it will transfer the signal to the... more

OC-60B Nomally Closed Alarm Security Rolling Gate Contact Magnetic Reed Switch

Description: 1.Actuation Distance: 50-70mm.Aluminum Alloy Housing Stainless Steel Pipe. 2.The reed switch is an electrical switch operated by an applied magnetic field. 3.Designed for use with alarm systems. Great for use in family and factory window... more

Treedix 2pcs SW-420 Vibration Sensor Module Vibration Switch Alarm Sensor Module Compatible with Aduino

Specifications: Using SW-420 normally closed type vibration sensor Comparator output- clean signal- good waveform- strong driving ability- >15mA Working voltage 3.3V ~ 5V Output format: digital switching output (0 and 1) Using a wide voltage LM393... more

Wired Emergency Panic Alarm Button Intelligent Door Access Property Switch with Key 250V

1�The button comes with exquisite appearance and high grade and the elegant white colour is with versatile style. 2�Manufactured by advanced ABS materials with stable performance and high reliability have a longer service life. 3�The structure is... more

High Sensitive Vibration Switch Sensor Module SW-18010P Normally Open Alarm Sensor Module

Description: 1.A fixed bolt holes for easy installation. 2.The comparator output signal clean good waveform driving ability is strong for more than 15 ma. 3.Use the LM393 wide voltage comparator. Adopt SW-18010P Vibration sensor. 4.Used for various... more

2Set HC-52 Alarm Security Rolling Garage Door Contact Magnetic Reed Switch

2Set HC-52 Alarm Security Rolling Garage Door Contact Magnetic Reed Switch more

Door Window Security Home Alarm Contact Surface Reed Switch Sensor Brown 10/pk

Surface wired magnetic contact Mini Stick-on contact with flange Self adhesive or screw mount Mounting screws and self-stick strips included Designed for doors or windows Center leads with 22 AWG and 18 length Brown Color 1 Gap Contact Dimensions: 33mm... more

5pcs HC-34A NC Recessed Wire Gate Contact Sensor Alarm Magnetic Reed Switch

Description: 1.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 ).When make order pls check carefully! 2.These are the door contact sensors that... more

Htovila Acousto-optic alarm Temperature Alarm Alarm Status 2 Relay Output Remote Relay Switch T201 Temperature Relay Output Temperature SMS Alarm 2 Status Alarm 2 Relay

GSM Remote Relay Switch Access Controller T201 GSM Temperature Alarm 2G/3G/4G Power Status Monitoring Power Failure SMS Alarm 2 Relay Output Temperature Sensor Temperature: -55℃~+125℃:0.1℃ Alarm output: output voltage = DC input voltage current:... more