---
product_id: 72722891
title: "Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals"
brand: "surplus deal usa"
price: "€ 25.27"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.pt/products/72722891-roller-ball-recessed-button-pressure-reed-switch-window-door-alarm
store_origin: PT
region: Portugal
---

# Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals

**Brand:** surplus deal usa
**Price:** € 25.27
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals by surplus deal usa
- **How much does it cost?** € 25.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/72722891-roller-ball-recessed-button-pressure-reed-switch-window-door-alarm)

## Best For

- surplus deal usa enthusiasts

## Why This Product

- Trusted surplus deal usa brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals

## Features

- Make sure this fits by entering your model number.
- High Quality Magnetic Contact Roller Ball Switch with Gold Plated Screws & Terminals
- Max Contact Rating: 28VDC, 0.5A, 10W
- FOR STANDARD 2-WIRE CONNECTION: Use the NO & COMM Terminals (Leave EOL detached)
- Tube: 3/4" Diameter x 2" Long - Please make sure that your doorjamb has the proper clearance!
- 1.75" x 1" Face Plate - Mounts on 2 screws (included) at 1.25" Centers

## Images

![Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals - Image 1](https://m.media-amazon.com/images/I/51QWpWeorPL.jpg)
![Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals - Image 2](https://m.media-amazon.com/images/I/41VyY4wlNEL.jpg)
![Roller Ball Recessed Button Pressure Reed Switch - Window/Door Alarm Contact Sensor Plunger with Terminals - Image 3](https://m.media-amazon.com/images/I/418rAzSNLpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Works Well
  

*by P***A on Reviewed in the United States on July 12, 2021*

We just installed this today on the inside track of a sliding door as an alarm contact and it works perfectly as described.

### ⭐ 







  
  
    This is not a N/O N/C ball switch
  

*by P***9 on Reviewed in the United States on January 29, 2022*

This is just like 4 other switches I own for use in alarm systems, what I thought I was buying was a door light switch?  The third terminal is for an end of line resistor required for all CMOS input alarm systems, not a normally open when closed door switch.

### ⭐⭐⭐⭐ 







  
  
    It's effetive
  

*by K***R on Reviewed in the United States on August 11, 2018*

The item resolved issue with our alarm system when the wires were inadvertently cut during a construction project.  The new button reconnected the alarm.

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**Shop now:** [https://www.desertcart.pt/products/72722891-roller-ball-recessed-button-pressure-reed-switch-window-door-alarm](https://www.desertcart.pt/products/72722891-roller-ball-recessed-button-pressure-reed-switch-window-door-alarm)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-10-01*