SM-4201-L3Q SECO-LARM Enforcer Track Mount Overhead Door

Review SECO-LARM Enforcer Track-mount Overhead Door Magnetic Contact

The SECO-ALARM SM-4201-L3Q Enforcer Track-Mount Overhead Door Magnetic Contact is a versatile and reliable safety device designed for securing and monitoring overhead doors in both residential and commercial applications. This contact is engineered to provide maximum coverage and sensitivity, ensuring that any movement or opening of the door is promptly detected.

The magnetic contact consists of a powerful neodymium magnet that adheres to the steel door and a sensitive probe that monitors the magnetic field. When the door is closed, the magnet and probe are in close proximity, maintaining a stable magnetic field. Any separation of more than 0.1 inches (2.54 mm) between the magnet and probe breaks the magnetic field, triggering an alarm.

The SM-4201-L3Q is designed to be easily installed on the track of the overhead door with the included mounting bracket. The bracket can be adjusted horizontally and vertically to ensure proper alignment with the door's track, allowing for a secure and accurate installation. The contact is also equipped with a test button, enabling users to verify the proper functioning of the device at any time.

This contact is suitable for doors with a maximum width of 24 inches (610 mm) and a maximum height of 12 inches (305 mm). It operates on a 12V DC power supply and features a built-in supercapacitor that provides backup power during power outages, ensuring continuous protection even during emergencies.

The SECO-ALARM SM-4201-L3Q Enforcer Track-Mount Overhead Door Magnetic Contact is designed to provide peace of mind and added security for any application where overhead door monitoring is essential. Its robust construction, high sensitivity, and easy installation make it an ideal choice for securing garages, workshops, warehouses, and other facilities where overhead doors are commonly used.

The Seco-Larm SM-4201-L3Q Enforcer Track-Mount Overhead Door Magnetic Contact is a security device designed to detect when an overhead door is open or closed. Here are some pros and cons of purchasing this product:

1. Easy Installation: This magnetic contact sensor is designed for easy installation. It can be mounted on the door and the frame using the provided mounting hardware.

2. Magnetic Sensing Technology: The sensor uses magnetic sensing technology to detect the door's position, ensuring reliable and accurate detection.

3. Tamper Resistant: The sensor is designed to be tamper-resistant, making it an effective deterrent against intruders.

4. Versatile: The sensor can be used with a wide range of security systems, including alarm systems and access control systems.

5. Long Battery Life: The sensor has a long battery life, reducing the need for frequent battery replacements.

1. Limited Compatibility: The sensor may not be compatible with some security systems, so it's essential to check compatibility before purchasing.

2. Dependent on Door Movement: The sensor relies on the door moving to detect its position, so it may not be suitable for doors that don't move regularly.

3. False Alarms: Magnetic contacts can sometimes cause false alarms due to interference from other magnetic objects or electromagnetic fields.

4. Limited Warranty: The sensor comes with a limited warranty, and additional charges may apply for extended coverage.

The Seco-Larm SM-4201-L3Q Enforcer Track-Mount Overhead Door Magnetic Contact is an effective and reliable security device for overhead doors. Its easy installation, magnetic sensing technology, tamper resistance, versatility, and long battery life make it a valuable addition to any security system. However, its limited compatibility, dependence on door movement, potential for false alarms, and limited warranty are important considerations. Overall, if the product is compatible with your security system and meets your specific security needs, it is a worthwhile investment.

Details:

Track-mount overhead door magnetic contact, 3 76mm gap, open/closed loop 3 wires: 1 set.

specifications alarmpartsacc:

• brand: Seco-larm
• mpn: Sm-4201-l3q
• part type: Mount Door

shipping alarmpartsacc:

• transit: 5-10 days
• type: fixed
• service: usps ground advantage
• carrier: usps
• class: standard

returns alarmpartsacc:

• method: money back
• paid by: buyer
• time: 30 days
• policy: returns accepted

seller alarmpartsacc:

• # reviews: 1057
• city: van nuys, california
• rating: 99.8%

general alarmpartsacc:

• category: Business & Industrial > Surveillance Equipment > Systems > Alarm Parts Accessories

offer alarmpartsacc:

• options: ship-to-home
• started: november 21, 2025
• sold #: 16
• prices: $35.00–$53.00
• item condition: New
• in stock #: 2
• availability: in stock

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