







Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ireland.
🛡️ Lock in peace of mind with QWORK’s magnetic precision!
The QWORK MC-31 is a surface-mounted, wired magnetic door/window contact sensor featuring a normally closed reed switch with an 8mm±1.8mm actuation distance. Packaged in sets of five with 20 screws, it offers easy installation and reliable security monitoring for doors, windows, and cabinets. Its sleek white plastic design is IP65 rated for dust and water resistance, making it ideal for both indoor and outdoor use in professional security systems.




| ASIN | B08FT91C1G |
| Actuator Type | Magnetic |
| Best Sellers Rank | #20,834 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Reed Switches #145 in Home Security Systems |
| Brand Name | QWORK |
| Circuit Type | 1-way |
| Color | White |
| Compatible Devices | Alarm Control Panels, Security Systems |
| Connectivity Protocol | X-10 |
| Connector Type | screws |
| Contact Material | Plastic |
| Contact Type | Normally Closed |
| Control Method | Touch |
| Control Type | On/Off |
| Controller Type | Ring |
| Current Rating | 10 A |
| Customer Reviews | 4.1 4.1 out of 5 stars (494) |
| International Protection Rating | IP65 |
| Item Weight | 0.27 g |
| Lower Temperature Rating | 1 °C |
| Manufacturer | QWORK |
| Material Type | Plastic |
| Model | WD3811 |
| Mounting Type | Door Mount |
| Number of Items | 5 |
| Number of Positions | 5 |
| Operation Mode | automatic |
| Part Number | WD3811 |
| Specification Met | CE |
| Switch Type | Reed Switch |
| Terminal | Screw |
| Unit Count | 5 Count |
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