KnowSpec.comIndependent product intelligence
Amazon US · ASIN B0GKGMBG2W

Meross Smart Outdoor Plug MSS620BHK, Wi-Fi Outdoor Plug with 2 Individually-Controlled Outlets, IP44 Weatherproof, Black (US/CA, 1-Pack)

The Meross MSS620BHK is a practical fit for buyers who want two individually controlled outdoor sockets, broad voice-assistant support, schedules, weather protection, and some local Wi-Fi control. It requires Wi-Fi coverage, is explicitly unsuitable for pumps, and the available evidence does not establish Matter, Thread, or energy-monitoring performance.

Updated 2026-09-26

Meross Smart Outdoor Plug MSS620BHK, black weatherproof outdoor plug with integrated power cord, two grounded outlets with yellow rubber covers, and works-with Apple HomeKit/Google/Alexa/SmartThings badges
Available at Amazon

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Buyer questions

Before you buy

Is it rated for outdoor use?

Yes. The official listing gives it an IP44 rating and identifies FCC and ETL certifications. [3]

Compatibility

Which voice assistants does it support?

The official product listing names Siri, Amazon Alexa, and Google Assistant. [3]

Setup

What network is needed for setup?

Initial setup requires the supported Wi-Fi band, and Wi-Fi coverage must reach the installation location. [1]

Everyday use

Can it still work when the internet is down?

An independent review reports that app control works over the local Wi-Fi network when internet service is unavailable. [2]

Can the two sockets be scheduled separately?

The product has two individually controlled sockets, and each outlet supports automatic schedules including sunrise and sunset timing. [3]

Limitations

Can it control an outdoor pump?

No. The manufacturer explicitly says not to use this smart plug with a pump. [3]

Meross Smart Outdoor Plug MSS620BHK, black weatherproof outdoor plug with integrated power cord, two grounded outlets with yellow rubber covers, and works-with Apple HomeKit/Google/Alexa/SmartThings badges
Meross Smart Outdoor Plug MSS620BHK (US/CA)Image source: Meross
Close-up of the Meross MSS620BHK's two independently numbered outlets (1 and 2), each with a device plugged in, mounted outdoors under a patio beam
Meross outdoor plug's two individually controlled outletsImage source: Meross
Meross MSS620BHK outdoor smart plug mounted on an exterior wall in the rain, showing the power button, status LED and weatherproof housing wet with rain drops
Meross outdoor plug installed outside, IP44 splash-proofImage source: Meross

Facts and specifications

Manufacturer manual

SpecificationValueSource
Setup RequirementInitial setup requires a 2.4 GHz Wi-Fi network. US[1]

Retailer listing

SpecificationValueSource
Buyer FitThe manufacturer positions it for gardens, porches, balconies, garages and outdoor lighting. US[3]
CertificationFCC and ETL US[3]
LimitationThe manufacturer says not to use the plug with a pump. US[3]
Outlet Count2 US[3]
Water ResistanceIP44 US[3]

Data: JSON · CSV

KnowSpec analysis

Who the Meross MSS620BHK suits

The Meross MSS620BHK is a practical fit for buyers who want two individually controlled outdoor sockets, broad voice-assistant support, schedules, weather protection, and some local Wi-Fi control. It requires Wi-Fi coverage, is explicitly unsuitable for pumps, and the available evidence does not establish Matter, Thread, or energy-monitoring performance.

Method: evidence_synthesis

Flexible outdoor control

Its strongest buyer-facing combination is two sockets that can be controlled separately, scheduling that includes sunrise and sunset timing, compatibility with major voice assistants, and local app control on the home Wi-Fi network when internet service is unavailable.

Method: evidence_synthesis

Key limitations and unknowns

Installation depends on usable Wi-Fi at the outlet location, the manufacturer says not to use the plug with a pump, and product data may be transmitted or stored through cloud infrastructure. The evidence set also leaves Matter or Thread behavior, energy-monitoring accuracy, and physical outlet-blocking dimensions unresolved.

Method: evidence_synthesis

Visible information gaps

Missing information is shown rather than guessed.

  • Topic:Energy Monitoring Accuracynot found
  • Topic:Physical Size Outlet Blockingnot found
  • Topic:Matter Thread Setup Reliabilitynot found

Sources and method

  1. Meross MSS620 User ManualManualsLib · retrieved 2026-09-26Other source
  2. Meross MSS620 outdoor smart Wi-Fi plug reviewITmedia PC USER · retrieved 2026-09-26Editorial review
  3. Meross Smart Outdoor Plug, MSS620BHK (US/CA Version)Meross Official Store · retrieved 2026-09-26Manufacturer
Updated: 2026-09-26 · Research accepted 2026-09-26Method: document and public-data analysis by an authorised research Agent with deterministic KnowSpec validation. No physical testing unless a section says otherwise. Missing or conflicting evidence stays visible instead of being guessed.