MCS-31

Introducing the Wesua MCS-31 Magnetic Door Contact Switch Sensor, a versatile and reliable addition to your home security alarm system. This contact sensor is designed to detect magnetic door and window closures, ensuring that your space remains secure at all times.

The Wesua MCS-31 is built with premium-quality components, ensuring durability and accuracy. It features a magnetic sensor and two adjustable arms that can be easily attached to doors or windows to detect their opening and closing. The sensor has a detection range of up to 2 cm (0.8 inches), making it suitable for various door and window sizes.

The contact sensor operates on a standard 12V DC power supply and can be wired into most alarm systems using the included terminals. It also features a built-in supercapacitor that stores power in case of a power failure, ensuring that the alarm system remains active even during power outages.

The Wesua MCS-31 is designed with a user-friendly interface, making installation and setup a breeze. The sensor comes with a test button, allowing you to easily check its functionality before mounting it on your door or window. It also features a built-in LED indicator that shows the sensor's status, making it easy to identify any issues.

This contact sensor is suitable for both residential and commercial applications, making it an essential component for anyone looking to enhance their security system. Its sleek and compact design ensures that it blends seamlessly with your decor, while its reliable performance provides peace of mind and security.

In summary, the Wesua MCS-31 Magnetic Door Contact Switch Sensor is a high-quality, versatile, and reliable addition to any home or business security system. It features premium components, a user-friendly design, and reliable performance, making it an essential tool for anyone looking to secure their space.

Buying the Wescal MCS-31 Pack NC Magnetic Door Contacts Switch Sensor for alarm systems comes with several advantages and disadvantages. Let's examine each point in detail:

1. Versatile: These magnetic door contacts can be used on various types of doors and windows, making them a versatile addition to your alarm system.

2. Easy Installation: The Wescal MCS-31 sensors are easy to install without requiring professional assistance, saving you time and money.

3. Sensitive: With adjustable sensitivity settings, these sensors can detect even the slightest door or window opening, enhancing the security of your property.

4. Durable: These sensors are built to last with high-quality materials, ensuring they can withstand daily use and harsh environmental conditions.

5. Cost-Effective: The Wescal MCS-31 Pack NC Magnetic Door Contacts Switch Sensors are relatively affordable, making them a cost-effective solution for securing your home or business.

1. Limited Range: These sensors have a limited range, which may not be suitable for larger properties or buildings with thick walls.

2. Power Requirements: The sensors require a constant power source, which may add to your overall electricity consumption.

3. False Alarms: Magnetic door contacts are prone to false alarms, especially if they are installed in areas with high traffic or if the magnets become misaligned.

In conclusion, the Wescal MCS-31 Pack NC Magnetic Door Contacts Switch Sensors offer several advantages, including ease of installation, versatility, sensitivity, durability, and cost-effectiveness. However, they also come with some disadvantages, such as a limited range, power requirements, and the potential for false alarms.

Based on the information provided, we recommend the Wescal MCS-31 Pack NC Magnetic Door Contacts Switch Sensors for those looking for an affordable, versatile, and easy-to-install solution for securing their doors and windows. However, if you have a larger property or require a longer range, you may want to consider other options, such as wireless or wired alarm systems. Additionally, ensure proper installation and calibration to minimize the risk of false alarms.

Details:

When door closed, reed switch is effected by magnet and turn on; when open, off, trigger alarm. Contact type: nc, material: abs plastic, color: white, pack: 5 pairs/bag, small size, nice looking, ideal for window or wood en door, screws installation make it more firm, normally closed door contact switch, alarm when the magnet part away, application: / entry burglar system, nc magnetic switch sensor it consist of a reed. Magnetic contacts is widely used for alarm system panel to detect state of door.

specifications entrysyst:

• brand: Wesua
• mpn: Mcs-31
• part type: Contact Switch Sensor Alarm
• connectivity technology: Wired
• included components: Switch
• control method: Application
• installation type: Surface-mounted
• sensor technology: Magnetic
• color: White
• assembly instructions: Diy
• alert type: Motion
• power source type: Battery Powered
• compatible devices: Alarm System
• material: Abs Plastic
• unit count: 10.0
• package dimensions lxwxh: 6.54x4.92x0.87 Inches
• weight: 0.26 Pounds

payments entrysyst:

• credit card: visa
• wallet: apple-pay
• other

shipping entrysyst:

• class: expedited
• type: fixed
• transit: 3-5 days
• service: expedited

offer entrysyst:

• options: ship-to-home
• sold #: 15
• availability: in stock
• in stock #: 5
• prices: $11.58–$16.99
• item condition: New
• started: july 12, 2025

seller entrysyst:

• # reviews: 260
• city: eugene, oregon
• rating: 99.6%

general entrysyst:

• category: Home & Garden > Security > Door Entry Systems Intercoms

returns entrysyst:

• policy: no returns