SS250 Wireless Doorbell Kit Never Needs Batteries by Safeguard Supply


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Imagine never having to change batteries again!  This incredible wireless doorbell converts the energy of pushing the doorbell button into electricity that transmits to the receiver!  This system has a range of up to 600 feet in open air and up to 300 with doors and walls.  There are 52 chimes to choose from and a decibel rating of 110, making this our loudest wireless system.

GTIN: 719243611811 SKU: SS250

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Looking for a wireless system but hate the hassle of changing batteries?

Ss251-Safeguard Supply Kinetic Push Button That Works Without Batteries, Uses Kinetic Energy

This wireless kinetic kit is exactly what you are looking for! 

The SS250 by Safeguard Supply uses a worm gear generator that only requires 350 grams of pressure to produce power.

You can have multiple receivers throughout your home or office and installation is a breeze.  This eco-friendly kit has a completely waterproof push button, a LED light and 52 chimes to choose from.


  • Voltage of Plug-In Smart Receiver: AC 110V ~ AC 220V 50Hz/60Hz
  • Power Consumption (Transmitter): < 10mW
  • Wireless Range: 600 ft in Open Air; 150-300 ft w/ Metal Security doors and Walls
  • Selectable Ring Tone: 52 Options
  • Volume Range: 4 Levels
  • Expandable to Multiple Smart Receiver or Transmitter: Up to 50
  • Working Frequency: 433.92 MHz±280KHz
  • Working Temperature: -30℃~70℃


  • 52 ringtones
  • 4 levels of adjustable volume
  • waterproof push button
  • LED light
  • made with environmentally friendly ABS materials
  • compatible with multiple receivers and/or transmitters
  • built in memory remembers door chime selection
  • chime sound can be easily changed by forward and backward button
  • easy installation

How to Install the SS250

Ss250-Safeguard-Supply Door Chime Kit Uses A Kinetic Push Button &Amp; Plugin Receiver.  To Set Up, Plugin The Receiver, Use Double Sided Tape To Stick Button To Wall

Additional information

Battery Or Plug In

Plug-in Receiver



Wireless Features

Volume Control

Wireless Range

1000 ft.


Safeguard Supply

Best Use

Residential Home Use

Customer Reviews

Based on 2 reviews
J. (Santa Rosa, US)

The third try for a wireless doorbell is at last a success! Constantly failing batteries and buzzer failure to connect were frustrating, leading to the search for this great product. Highly recommend!

R.B. (Albuquerque, US)
Great doorbell and great concept

Easy to set up and install. I recommend it.