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Last updated September 2026

Arlo All-in-One Sensor

Combines motion detection with ambient light and temperature sensing in a small battery-powered puck, backed by smooth Google Home and Alexa integration but no standalone radio of its own.

4.0
94 ratings
7% OFF
$29.99
$27.90
1

One sensor per room you want covered.

Buy on Amazon USACheck price
As an Amazon Associate I earn from qualifying purchases
Launch Year: 2022

Model: MS1001

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Our review

Arlo All-in-One Sensor Review: A Compact Motion Sensor That Needs an Arlo Hub to Shine

The verdict

The Arlo All-in-One Sensor packs motion detection with ambient light and temperature sensing into a single palm-sized, battery-powered puck, and most owners describe an easy setup with reliable Google Home and Alexa voice integration. Because it has no direct Wi-Fi, Bluetooth, Zigbee, Z-Wave or Thread radio of its own, it only works paired with a compatible Arlo Security System hub or keypad, a requirement a few buyers were caught off guard by. A minority of reviewers also report battery drain or a sensor going unresponsive after a couple of years. It is a solid, budget-friendly pickup for households already committed to Arlo, Google Home or Alexa, and a weaker fit for anyone wanting a universal motion sensor that pairs directly with a router, Zigbee hub or Matter controller.

Best for
  • Existing Arlo ecosystem owners
  • Google Home and Alexa households
  • Indoor motion monitoring
  • Budget-conscious multi-sensor shoppers
1

One sensor per room you want covered.

Buy on Amazon USACheck price

Pros

  • Combines motion detection with ambient light and temperature sensing in one small, lightweight device
  • Quick, straightforward setup with smooth Google Home and Alexa voice-control integration
  • Most owners describe day-to-day motion detection as dependable once paired with an Arlo hub
  • Supports in-app automations to trigger other actions from motion, light or temperature events
  • Competitively priced against other named-brand motion sensors, backed by a one-year manufacturer warranty

Cons

  • No standalone Wi-Fi, Bluetooth, Zigbee, Z-Wave or Thread radio; requires a compatible Arlo Security System hub or keypad to function
  • No Apple HomeKit, Home Assistant, IFTTT or Matter support
  • No weather-resistance rating, so it is built for indoor use only
  • A handful of owners report faster-than-expected battery drain or a sensor going unresponsive after a couple of years
  • A few buyers found the mounting clip fragile during installation, and placing the Arlo hub too far away can cause connectivity dropouts

Who is the Arlo All-in-One Sensor for?

This sensor suits households that already run, or plan to run, an Arlo Security System, since it needs a compatible Arlo hub or keypad to actually detect and report motion rather than connecting straight to a router. Within that setup it works with Google Home and Alexa, so it fits buyers who want voice control and app-based automations layered on top of motion detection. Because it also has built-in light and temperature sensors, it appeals to anyone who wants one small device to trigger automations from more than just movement, and because it carries no weather-resistance rating, it is meant for indoor placement rather than an exposed outdoor spot.

What buyers love

The most consistent praise across reviews is for quick setup and smooth pairing with the Arlo app and Google Home, with several owners specifically calling it a straightforward switch from a discontinued Google Nest security setup. Buyers also like that one small sensor covers motion, light and temperature instead of needing several single-purpose devices, and describe day-to-day motion detection as dependable once the sensor is paired with an Arlo hub. One reviewer, running an Arlo setup for short-term rental monitoring, specifically credits the sensor's temperature and leak-related alerting with catching a bathroom issue in its first week of use before it turned into costly water damage, a reminder that this sensor's temperature and moisture sensitivity can flag real risks beyond simple motion. The small, unobtrusive size and price competitive with other named-brand sensors also come up repeatedly, especially for buyers already paying for an Arlo plan who can fold this sensor into an existing setup.

What to know before you buy

The most important thing to understand before buying is connectivity: this sensor has no direct 2.4GHz or 5GHz Wi-Fi, Bluetooth, Zigbee, Z-Wave or Thread radio, so it cannot detect and report motion on its own. Buyer confusion about this shows up in reviews, with at least one owner surprised to learn a keypad was required for the sensor to do anything useful after already paying for an Arlo subscription. Platform support is also narrower than some competitors: Google Home and Alexa are covered, but there is no Apple HomeKit, Home Assistant, IFTTT or Matter support, and Arlo does not publish figures for angle of detection, adjustable motion sensitivity or a detection timeout window. On the reliability side, a handful of reviews mention faster-than-expected battery drain, a sensor that stopped responding after about two years of use, or occasional false tamper alerts, and a couple of buyers found the mounting clip fragile during installation or needed to relocate their Arlo hub closer to the sensor to avoid connectivity dropouts.

Is the Arlo All-in-One Sensor worth it?

For a household already invested in Arlo hardware and Google Home or Alexa, this sensor is an easy, budget-friendly way to add motion detection alongside light and temperature sensing through one small device backed by a one-year warranty, and it supports in-app automations for triggering other actions from what it detects. It is a much weaker fit for anyone without an Arlo hub already in place, or for buyers who specifically want a motion sensor that speaks Zigbee, Z-Wave, Thread or Matter directly and works without a proprietary hub, since this one simply cannot do that.

Frequently asked questions

Does the Arlo All-in-One Sensor work as a standalone motion sensor?

No. It has no direct Wi-Fi, Bluetooth, Zigbee, Z-Wave or Thread radio, so it needs a compatible Arlo Security System hub or keypad to connect and send motion alerts.

Does it work with Google Home and Alexa?

Yes, it integrates with both Google Home and Amazon Alexa for voice control and app-based automations, but it does not support Apple HomeKit, Home Assistant, IFTTT or Matter.

How far away can the Arlo All-in-One Sensor detect motion?

Arlo rates it for detecting movement up to about 20 feet away.

Can it also sense light and temperature, not just motion?

Yes, alongside motion detection it has built-in light and temperature sensors, and some buyers use those readings to trigger automations tied to changing conditions in a room.

Is it weather-resistant enough for outdoor motion detection?

No, Arlo does not give it a weather-resistance rating, so it is intended for indoor placement rather than an exposed outdoor spot.

Is the Arlo All-in-One Sensor a good value for motion detection?

For households already using Arlo hardware and Google Home or Alexa, yes, it is a budget-friendly way to add motion, light and temperature monitoring with automations support and a one-year warranty, though buyers wanting a standalone sensor with HomeKit or Matter support should look elsewhere.

At a glance

Summary

Everything this motion sensor supports, grouped by category.

Size & Materials
1.5 × 0.6 × 2.4 in (38 × 15 × 61 mm)3.5 oz (100 g)
Integrations
Google HomeAlexaSamsung SmartThings
Sensors
MotionLightTemperature
Alerts
Motion Alerts

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Company
Arlo logo

Arlo

4.1/ 5 avg ratingUSA flagHeadquartered in USA

Arlo is a security-focused brand specializing in wireless and wire-free smart cameras, video doorbells and floodlight cameras. Its products are known for high-resolution video, battery-powered designs and cloud features like person, package and vehicle detection through an Arlo Secure subscription. Arlo cameras integrate with Alexa, Google Home and Apple HomeKit.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

NO

Dimensions

1.5 × 0.6 × 2.4 in (38 × 15 × 61 mm)

Weight

3.5 oz (100 g)

Power
Battery Type

CR2477

Battery Life

?

Connectivity
2.4 GHz WiFi

NO

5 GHz WiFi

NO

Bluetooth

NO

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Integrations
Google Home

YES

Alexa

YES

Apple HomeKit

NO

Samsung SmartThings

YES

Via the official Arlo cloud-to-cloud integration

Home Assistant

?

Matter

NO

Sensors
Motion

YES

Light

YES

Temperature

YES

Alerts
Motion Alerts

YES

Low Battery Alerts

?

Features
Angle of Detection

?

Range of Detection

6m / 20ft

Motion Sensitivity Configuration

?

Detection Timeout Configuration

?

Automations

YES

History Records

?

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