







🔔 Elevate your entryway with effortless style and sound!
The SECRUIM520+F55 is a waterproof wireless doorbell featuring 5 adjustable volume levels, 58 ringtones, and a 3-year battery life powered by a CR2032 battery. Designed for quick, no-wiring installation, it combines sleek industrial aesthetics with durable ABS plastic construction and LED flash alerts, making it a versatile and reliable choice for modern homes.









| Manufacturer | SECRUI | 
| Part number | M520 | 
| Item Weight | 9.07 g | 
| Batteries | 1 CR2032 batteries required. (included) | 
| Item model number | M520 F55 | 
| Size | 1 Packungen | 
| Color | black | 
| Material | ABS plastic | 
| Pattern | Simple design | 
| Shape | Square | 
| Item thickness | 1.4 Inches | 
| Power source type | AC and battery operated | 
| Voltage | 120 Volts (AC) | 
| Installation Method | Self-adhesive and screw-in | 
| Item Package Quantity | 1 | 
| Temperature Range | -4-140 Degrees Fahrenheit | 
| Noise Level | 120 dB | 
| Extension Length | 2.6 Inches | 
| Hose Length | 2.5 Inches | 
| light-source-type | LED | 
| Number Of Basins | 1 | 
| Number of Holes | 1 | 
| Blade Length | 2.5 Inches | 
| Speed Rating | Memory function: LED indicator | 
| Cutting Diameter | 2.5 Inches | 
| Measurement System | English/Standard | 
| Measurement Accuracy | 1 mm | 
| Plug Format | A- US style | 
| Special Features | Adjustable volume Optional ringtone | 
| Specific uses | Wireless Doorbell for Home/Classroom Doorbell | 
| Included components |  1 × transmitter (battery included), 1 × plug-in receiver, 1 × tape, 2 × screw, 2 × anchor, 1 × user manual (may not be in English) Not in English) | 
| Batteries Included? | Yes | 
| Batteries Required? | Yes | 
| Battery Cell Type | Lithium Manganese Dioxide | 
| tech_spec_battery_description_toys | CR2032 | 
| Battery life | 3 years | 
| Item diameter | 2.5 Inches | 
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