







🔔 Elevate your entryway with seamless style and sound!
The SECRUI Wireless Doorbell M520+F55 offers effortless installation with pre-paired components, a robust 1000-foot wireless range using FM technology, and 58 customizable chimes with adjustable volume. Designed for durability, it features IP55 waterproofing, fire-resistant ABS material, and operates reliably across extreme temperatures. Energy-efficient with a 3-year battery life, this doorbell combines cutting-edge tech and sleek design to enhance any modern home or office.









| Manufacturer | secrui |
| Part Number | M520 |
| Item Weight | 0.32 ounces |
| Product Dimensions | 3.1 x 2.8 x 3.1 inches |
| Item model number | M520 F55 |
| Batteries | 1 CR2032 batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Size | 1 receiver 1 button |
| Color | Black |
| Material | ABS |
| Pattern | Simple design |
| Shape | Square |
| Power Source | AC & Battery |
| Voltage | 120 Volts |
| Installation Method | Self-Adhesive & Screw-In |
| Item Package Quantity | 1 |
| Temperature Range | -4-140 Degrees Fahrenheit |
| Sound Level | 120 Decibels |
| Type of Bulb | LED |
| Performance Description | MEMORY FUNCTION ENERGY-SAYING LED INDICATOR |
| Accessory Connection Type | Wireless |
| Plug Format | A- US style |
| Switch Style | Push button |
| Special Features | Adjustable Volume Optional Ringtone |
| Usage | Wireless Doorbells for Home / Classroom Doorbell |
| Included Components | 1 × Transmitter (battery included), 1 × Plug-in receiver, 1 × Adhesive tape, 2 × Screw, 2 × Anchor, 1 × User manual |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Manganese Dioxide |
| Description Pile | CR2032 |
| Average Battery Life | 3 years |
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