TP-Link Kasa KP125M

Smart Plugs

TP-Link Kasa KP125M

4.3 (2.3k) Specs 89% complete Verified 23 Oct 2026

The Kasa plug with energy monitoring and Matter: 1,800 W on 2.4 GHz Wi-Fi, local control with Apple Home, Google Home, Alexa and a core Home Assistant integration, no subscription. A Kasa cloud account is required for setup.

#3 of 5 smart plugs

Kasa KP125M
41
Category average
47
from $24.99

was $29.99

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The TP-Link Kasa KP125M beats the category average in 1 of 3 areas.

  • 1,800 W max load
  • Type B (US) plug type
  • 2.4 GHz Wi-Fi
  • Core integration Home Assistant

$24.99

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The Kasa KP125M against other smart plugs

It beats the category average in 1 of 3 areas.

Kasa KP125MCategory average
Category average · Connectivity: 50 Category average · Integrations: 48 Category average · Privacy & Local Control: 50 Kasa KP125M · Connectivity: 38 Kasa KP125M · Integrations: 60 Kasa KP125M · Privacy & Local Control: 25 Connectivity 38 · 50 Integrations 60 · 48 Privacy & Local Control 25 · 50

Where it falls behind 1

SpecKasa KP125MAgainst the rest
Firmware updates via HA Update the firmware from Home Assistant without the vendor app (Zigbee2MQTT OTA, Matter OTA). No behind 50%

All specs with their sources

Score 41 vs 47 category average · 5 of 5 scored specs known. How we score

Works with — and how well

“Works with Alexa” can mean full local control or a cloud skill that only switches it on. Here’s which one.

Platforms

  • Matter Full Local control of on/off and power readings from any Matter controller.
  • Home Assistant Full Official integration, ships with Home Assistant.
  • Apple Home Full Via Matter.
  • Google Home Full Via Matter, works locally.
  • Alexa Full Via Matter, works locally.

Without the cloud

  • Works offline Keeps working with your internet down — schedules, automations and local apps still run. Yes
  • Cloud account required You must create a manufacturer account to set it up. Some devices stop working if the cloud shuts down. Yes
  • Subscription for key features Features locked behind a monthly fee, e.g. history, AI detection or remote access. No
  • Firmware updates via HA Update the firmware from Home Assistant without the vendor app (Zigbee2MQTT OTA, Matter OTA). No
  • Home Assistant Core integration · local push
How to add it to Home Assistant
  1. Settings → Devices & services → Add integration
  2. Search for “TP-Link” and select it
  3. Sign in with your TP-Link account (the integration then talks to the cloud)
  4. Assign the device to an area

Every spec, with its source

17 of 19 specs sourced

  • Manufacturer spec sheet 12
  • Home Assistant docs 3
  • FCC / CE filing 2
  • ? Not published — we don’t guess 2

1. Electrical

3 of 4 known
Spec Kasa KP125M Source vs all smart plugs
Plug type Most of mainland Europe uses Type F; France and Belgium use Type E. Check before you buy a regional variant. Type B (US) Manufacturer spec sheet
Max load 3,680 W (16 A) handles heaters and washing machines. 2,300 W (10 A) plugs are only for small appliances. 1,800 W Manufacturer spec sheet
Energy monitoring Reports live watts and kWh. Needed for the Home Assistant energy dashboard. Yes Manufacturer spec sheet
Standby draw What the plug itself uses while idle. 0.5 W is about 4.4 kWh a year. ? Not published

2. Design

1 of 2 known
Spec Kasa KP125M Source vs all smart plugs
Child protection Shuttered socket that stops objects being pushed in. ? Not published
Blocks neighbouring socket Chunky plugs cover the second socket on a double outlet. No Manufacturer spec sheet

3. Connectivity

4 of 4 known −12 vs avg
Spec Kasa KP125M Source vs all smart plugs
Wi-Fi 2.4 GHz has longer range. Dual band helps in crowded apartment buildings. 2.4 GHz Manufacturer spec sheet
Thread Low-power mesh used by Matter. Needs a Thread border router (HomePod mini, Nest Hub, SkyConnect…). No FCC / CE filing beats 0%
Zigbee Mature mesh protocol. Works locally with Zigbee2MQTT or ZHA in Home Assistant. No FCC / CE filing
Bluetooth Usually only for setup or short-range control. Yes Manufacturer spec sheet

4. Integrations

5 of 5 known +12 vs avg
Spec Kasa KP125M Source vs all smart plugs
Matter Works with every major platform locally. Check which device types are supported — some features may stay app-only. Yes Manufacturer spec sheet beats 20%
Home Assistant Core integrations ship with Home Assistant. HACS integrations are community-maintained and can break after updates. Core integration Home Assistant docs
Alexa Yes Manufacturer spec sheet
Google Home Yes Manufacturer spec sheet beats 20%
Apple Home Yes Manufacturer spec sheet beats 20%

5. Privacy & Local Control

4 of 4 known −25 vs avg
Spec Kasa KP125M Source vs all smart plugs
Works offline Keeps working with your internet down — schedules, automations and local apps still run. Yes Home Assistant docs
Cloud account required You must create a manufacturer account to set it up. Some devices stop working if the cloud shuts down. Yes Manufacturer spec sheet
Subscription for key features Features locked behind a monthly fee, e.g. history, AI detection or remote access. No Manufacturer spec sheet
Firmware updates via HA Update the firmware from Home Assistant without the vendor app (Zigbee2MQTT OTA, Matter OTA). No Home Assistant docs behind 50%

Change history

Suggest a correction
  1. Value added — Thread FCC / CE filing
  2. Value added — Zigbee FCC / CE filing
  3. Value added — Subscription for key features Manufacturer spec sheet
Show 14 earlier changes Hide earlier changes
  1. Value added — Firmware updates via HA Home Assistant docs
  2. Value added — Home Assistant Home Assistant docs
  3. Value added — Works offline Home Assistant docs
  4. Value added — Blocks neighbouring socket Manufacturer spec sheet
  5. Value added — Wi-Fi Manufacturer spec sheet
  6. Value added — Energy monitoring Manufacturer spec sheet
  7. Value added — Max load Manufacturer spec sheet
  8. Value added — Plug type Manufacturer spec sheet
  9. Value added — Cloud account required Manufacturer spec sheet
  10. Value added — Apple Home Manufacturer spec sheet
  11. Value added — Google Home Manufacturer spec sheet
  12. Value added — Alexa Manufacturer spec sheet
  13. Value added — Matter Manufacturer spec sheet
  14. Value added — Bluetooth Manufacturer spec sheet

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TP-Link Kasa KP125M

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Where to buy it

Region Buy
US for you from $24.99

Price as of 4 Nov 2026 · amazon.com

Ratings

4.3 2,306 owner ratings on amazon.com

Owner ratings come from Amazon. We don’t write fake reviews.

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Questions about the Kasa KP125M

Didn’t find your answer? Ask us

Does it work without the internet?

Yes. Schedules and local control keep working offline; only remote access needs the internet.

Does it work with Home Assistant?

Yes, via Core integration. See the setup steps above.

Is it Matter-certified?

Yes, so it pairs locally with Apple Home, Google Home, Alexa, SmartThings and Home Assistant.

Is there a subscription?

No. All features work without a subscription.

Which version should I buy?

The US version (), sold on amazon.com. Other regions use different plugs and model numbers — see “Variants” above.

What warranty do I get?

The TP-Link manufacturer’s warranty for your region. In the UK and EU you also have statutory rights against the seller; check the listing on Amazon for details.

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