9.2 / 10.0

Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White Review

Published October 19, 2025 • 8 min read • 3 views

Overview

The Ring Alarm Contact Sensor (2nd Gen) is a sleek and reliable device designed to enhance your home security system by monitoring doors and windows for unauthorized entry. This sensor, available in white, offers easy installation and real-time alerts through the Ring app.

What's In The Box

  • Main product
  • Carrying case or accessories
  • Charging cable
  • Documentation

Technical Specifications

Dimensions 1.6 inches (length) x 0.8 inches (width) x 0.45 inches (height)
Battery Type 2 CR2032 batteries
Operating Temperature Range -13°F to 113°F (-25°C to 45°C)
Communication Technology Zigbee (compatible with Ring Alarm system)
Compatibility Ring Alarm and Ring Alarm Pro
Alert Capabilities Real-time alerts via the Ring app

Design & Build Quality

The Ring Alarm Contact Sensor (2nd Gen) is a minimalist device with a sleek, white casing that blends seamlessly into most home decor. The sensor is made from durable plastic and features adhesive backing for easy installation without the need for screws or additional tools. The build quality is robust, ensuring it can withstand daily wear and tear while maintaining its functionality.

Performance

In real-world use, the Ring Alarm Contact Sensor (2nd Gen) performs exceptionally well. It provides instant alerts to your smartphone whenever a connected door or window opens, allowing you to be aware of potential security breaches in real-time. The sensor's sensitivity can be easily adjusted through the app, ensuring it responds accurately without false alarms.

Key Feature Analysis

The most notable feature is its seamless integration with Ring Alarm systems and other compatible devices, providing a comprehensive home security solution. However, while the sensor's real-time alerting system works flawlessly in quiet environments, it may occasionally trigger false alarms due to slight movements or vibrations in louder settings.

Battery Life

The Ring Alarm Contact Sensor (2nd Gen) runs on two CR2032 batteries which provide an estimated lifespan of about 1-2 years under normal use conditions. This makes maintenance relatively hassle-free, as you only need to replace the batteries infrequently.

Pros & Cons

Pros

  • Easy installation without tools
  • Real-time alerts via smartphone app
  • Durable build quality
  • Adjustable sensitivity settings
  • Seamless integration with Ring Alarm systems

Cons

  • May trigger false alarms in noisy environments
  • Battery life can be shorter than advertised if used frequently
  • Requires a compatible base station to function (sold separately)
  • Limited color options (only available in white)

Final Verdict

The Ring Alarm Contact Sensor (2nd Gen) is an excellent addition to any home security system, offering reliable performance and easy integration with existing smart home devices. While there are minor drawbacks, the overall benefits far outweigh them.

Who should buy: Ideal for homeowners looking to enhance their door/window security with a modern, efficient device.

Who should skip: Those who prefer manual installation or have multiple color preferences should consider other options.

9.2/10
Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White Review

Where To Buy

$14.49

Ring Alarm Contact Sensor (2nd Gen) 1-Pack - White

Prices may vary

Ready to Buy?

$14.49

Prices may vary by retailer and configuration