SimpliSafe

SimpliSafe MS3 Motion Sensor – White | New in Box

Free U.S. shipping and free 30-day returns. Check the compatible models in the description below.

$42.72

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Check the listed compatible models and specs before you order. Questions? Email us.

Multi-device One for each device (3)

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Free shipping

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Free tracked shipping on every order. Most orders arrive within 3–8 business days.

Free 30-day returns

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Return eligible items within 30 days of delivery for a full refund. We email you a prepaid return label.

Peak-demand shipping delays

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During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

Email support

Questions about fit or an order? Email nexoltic@gmail.com. We reply on business days (Mon–Fri).

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Product details

Product snapshot: SimpliSafe MS3 Motion Sensor

The SimpliSafe MS3 Motion Sensor in white offers a compact, unobtrusive presence designed to complement a home security setup. This listing features a brand-new unit, still in its original box, giving you a fresh component ready for easy installation or replacement. The sensor’s clean, neutral finish helps it blend with most interiors, reducing visual distraction while staying accessible for placement in key spaces.

What you gain with MS3

Motion sensors play a practical role in monitoring activity within a room. The MS3 is engineered to detect movement in its field of view, contributing to situational awareness and timely alerts when paired with a compatible system. In real-world use, you might notice quicker responses to movements near common pathways or entry points, depending on your setup.

  • New in box: you receive a factory-fresh unit that’s ready for setup.
  • White finish: designed to discreetly integrate into most room styles.
  • Original packaging included: keeps a neat, organized replacement option on hand.
  • Designed to work with SimpliSafe components, helping extend protection across your space.

Practical placement ideas

  • Install near hallways to monitor foot traffic and send notifications when motion is detected.
  • Place in living areas or entryways to complement door and window sensors and broaden coverage.
  • Use this unit as a spare or replacement part to maintain system reliability during upgrades.

Note: The MS3 is described here as a component of the SimpliSafe line. Actual performance depends on your overall setup and environment. This listing emphasizes the product’s condition (new) and packaging (original) as key considerations for potential buyers.

Design and build quality matter in everyday security devices. The MS3 features a slim profile that sits unobtrusively on a wall or ceiling and a neutral white finish that blends with most decors. When you handle the unit, you’ll notice compact dimensions and a straightforward design intended for simple mounting and servicing. The original packaging helps ensure that you’re receiving a product that arrives intact and ready for evaluation or replacement in existing setups.

In short, this SimpliSafe MS3 Motion Sensor offers a ready-to-use option for maintaining alertness in your space. While actual results depend on your overall setup, choosing a new component with original packaging may help with reliability and peace of mind as you refresh or expand your security system.

FAQ

Q: What’s included with the SimpliSafe MS3 Motion Sensor?

A: New in its original box, the MS3 motion sensor is ready for setup with your SimpliSafe system.

Q: Where can I use the MS3 sensor?

A: Suitable for hallways, living areas, and entryways to monitor activity.