# ThirdReality Smart Plug M1 (3RSP03046W)

ThirdReality Smart Plug M1 is an unusually inexpensive direct-Matter plug when SmartThings or Home Assistant can use its power readings. Buy one before the four-pack, because ThirdReality does not document the same metering view in Apple Home, Google Home, or Alexa.

Canonical page: https://matterhome.io/devices/thirdreality-smart-plug-m1
Markdown page: https://matterhome.io/devices/thirdreality-smart-plug-m1.md
Author: Matterhome Editorial Team
Author profile: https://matterhome.io/authors/matterhome-editorial-team
Editorial lead: JC Martinez
Editor profile: https://matterhome.io/authors/jc-martinez

## Device Facts

- Brand: ThirdReality
- Model: Smart Plug M1 (3RSP03046W)
- Product type: Matter Wi-Fi Smart Plug with Power Metering
- Category: Smart plugs
- Connection: Matter over Wi-Fi
- Matter status: Smart Plug M1 model 3RSP03046W pairs directly over Matter and 2.4 GHz Wi-Fi through a compatible Matter controller; no ThirdReality hub or Thread border router is required.
- Launch date: 2025
- Thread border router required: No
- Brand hub required: No
- Typical price range: $12.99 single / $38.99 four-pack
- Markets: North America
- Review status: Compatibility guide
- Product image: https://matterhome.io/content-assets/devices/thirdreality-smart-plug-m1/product.webp
- Product image alt text: White and blue ThirdReality Smart Plug M1 with its retail box
- Product image source: https://cdn.shopify.com/s/files/1/0549/1684/1696/files/Smart-Plug-M1-1P.jpg?v=1774595628

## Ecosystem Support

- Apple Home: Supported
- Google Home: Supported
- Alexa: Supported
- SmartThings: Supported
- Home Assistant: Supported

## Best For

- SmartThings or Home Assistant households that want power readings from a lamp, fan, dehumidifier, charger, or similar plug-in load
- Buyers who want to test one low-cost Matter plug before standardizing on a multipack
- North American Wi-Fi homes that do not need a Thread router or brand bridge at the outlet

## Skip If

- The outlet is outside North America or the appliance does not fit the documented voltage and load limits
- Strengthening a Thread mesh is part of the purchase
- Energy data must appear in Apple Home, Google Home, or Alexa without first testing the exact platform
- The connected appliance requires a direct wall outlet, dedicated circuit, or another installation the smart plug cannot provide

## Setup Notes

- Confirm the outlet and appliance fit the Type B, 100 to 120 V, 15 A maximum, and 1800 W maximum ratings before connecting the plug.
- Use a 2.4 GHz Wi-Fi network and a compatible Matter controller, then scan the Matter code on the plug or manual.
- For SmartThings, ThirdReality documents SmartThings Hub 2018, Aeotec Smart Home Hub, and SmartThings Station as supported Matter controllers.
- For Home Assistant, add the plug through the Matter integration as a new device and verify the switch plus energy entities before building automations.
- Hold the side button until the LED flashes red rapidly when a factory reset and new commissioning session are required.

## Known Limitations

- The manual documents power metering and energy statistics for SmartThings and Home Assistant, while the product page also lists the 3R-Installer app; equivalent energy views are not documented for Apple Home, Google Home, or Alexa.
- Apple Home, Google Home, and Alexa are listed on the product page, but the current M1 manual provides product-specific setup sections only for SmartThings and Home Assistant.
- ThirdReality's current release history lists firmware 1.00.62 dated July 17, 2025 and warns that upgrading from the previous version requires resetting the network configuration.
- The 15 A and 1800 W maxima do not override an appliance requirement for direct wall connection, a dedicated circuit, or other load-specific precautions.
- Matterhome has not tested power accuracy, sustained-load temperature, Wi-Fi range, firmware updates, or ecosystem feature parity.

## Pros

- Pairs directly over Matter and 2.4 GHz Wi-Fi without a ThirdReality hub or Thread border router
- Handles up to 15 A and 1800 W on a documented North American 100 to 120 V circuit
- Exposes power metering and energy statistics in SmartThings and Home Assistant according to the current manual
- Sold as a $12.99 single plug, so the metering path can be tested before buying a multipack

## Cons

- Uses 2.4 GHz Wi-Fi rather than Thread
- ThirdReality does not document M1 energy data in Apple Home, Google Home, or Alexa
- The Type B hardware is limited to 100 to 120 V North American outlets
- The current firmware note says an upgrade from the previous version requires a network reset

## Sources

- https://www.thirdreality.com/products/smart-plug-m1-power-metering
- https://www.thirdreality.com/products/smart-plug-m1-power-metering.js
- https://tr-common-us-prod.s3.us-west-1.amazonaws.com/product/manual/SmartWIFIPlug.pdf
- https://www.thirdreality.com/pages/release-notes
- https://cdn.shopify.com/s/files/1/0549/1684/1696/files/Smart-Plug-M1-1P.jpg?v=1774595628

A smart plug can report that an outlet is on without proving the appliance is doing anything. ThirdReality Smart Plug M1 adds power readings to that basic switch job for $12.99, which makes it a useful low-cost test for a lamp, fan, dehumidifier, charger, or other plug-in load. The important qualifier is where those readings appear.

ThirdReality specifically documents power metering and energy statistics in SmartThings and Home Assistant. Its product page also lists Apple Home, Google Home, and Alexa, but it does not promise the same energy view in those platforms. The M1 is therefore easiest to recommend to SmartThings and Home Assistant households. Everyone else should assume basic Matter switching first and treat metering as something to verify.

## The meter is the reason to choose M1

The North American M1 hardware is model `3RSP03046W`. ThirdReality rates it for 100 to 120 V AC, 15 A maximum, 50 or 60 Hz, and 1800 W maximum. The body measures 2.7 x 1.5 x 1.13 inches and has a side button plus a red status LED. The current store separates that hardware identity from the pack SKU: `P1SPMB1` is the available $12.99 single pack, while the four-pack costs $38.99.

In SmartThings, the manufacturer shows ordinary outlet control, a live power reading, timers, and routines. Its manual names SmartThings Hub 2018, Aeotec Smart Home Hub, and SmartThings Station as compatible Matter controllers. Home Assistant has its own manual section for commissioning through the Matter integration, and ThirdReality lists power metering and energy statistics there as well.

That platform specificity is useful. Power data has often been the least portable part of a Matter plug, so a row of ecosystem logos is not enough evidence for a power-aware automation. If the plan is to detect when a washing machine stops or to chart a dehumidifier's consumption, confirm that the chosen platform creates the required entities and retains the history before buying four plugs.

## Matter setup does not need another hub

M1 uses Matter over 2.4 GHz Wi-Fi. It does not need a Thread border router, a ThirdReality bridge, or a Zigbee coordinator. A compatible Matter controller is still required, and the phone, controller, and plug need a normal home-network path during commissioning.

Scan the Matter code on the product or in the manual from the receiving ecosystem. The LED flashes red during pairing and turns off after pairing completes. To start over, hold the side button until that red light flashes rapidly, then commission the plug again. SmartThings users can also create a new Matter sharing code after setup when another ecosystem needs access.

ThirdReality lists Apple Home, Google Home, Alexa, SmartThings, and Home Assistant for the product, but its current manual only walks through SmartThings and Home Assistant. Apple, Google, and Alexa buyers should confirm that their exact hub, speaker, or display acts as the required Matter controller. They should also test the energy view rather than infer it from on-off support.

## Check the appliance before the rating label

A 15 A maximum does not make every 15 A appliance a good smart-plug load. Space heaters, portable air conditioners, pumps, compressors, and motor loads may require a direct wall connection, a dedicated circuit, or switching hardware designed for their startup current and duty cycle. The appliance manual and local electrical rules decide that fit.

For ordinary approved loads, pair and update the plug while its button and Matter label are easy to reach. ThirdReality provides firmware through its 3R-Installer app without requiring a brand hub. The current release history lists version 1.00.62, dated July 17, 2025, and warns that moving from the previous version requires resetting the network configuration. That is a reason to update before building routines, not after the plug is hidden behind furniture.

Matterhome has not tested metering accuracy, sustained-load temperature, Wi-Fi range, firmware behavior, or feature parity. A serious power-triggered automation should be checked against a known load and observed through several normal cycles before it is trusted.

## Buy one, prove the data, then scale

At $12.99, the single M1 is the sensible purchase. Add it to the platform that will own the automation, confirm the live watts and accumulated energy fields, and verify that those values recover after a power or network interruption. The four-pack only becomes the better deal after that test passes.

[Kasa KP125M](/devices/kasa-kp125m) and [Tapo P110M](/devices/tapo-p110m) solve the same direct-Wi-Fi metering job with more established brand apps. [Eve Energy](/devices/eve-energy) costs more and needs Thread infrastructure, but it can also act as a powered Thread router. Choose M1 when a cheap, direct Matter meter for SmartThings or Home Assistant is the point. Choose another plug when the network role or vendor app matters more than the price.