Smart Plugs / TP-Link
Kasa Matter Smart Outdoor Plug EP40M
The best-built outdoor Matter plug, and the one TP-Link refuses to give energy monitoring.
Overall score 7/10
Pros
- + 1/2 HP motor rating — three times the EP25's, which matters for pond pumps and inflatables
- + Two outlets you can schedule separately, so lights and a pump are not tied together
- + Matter multi-admin plus a wide -4°F to 122°F operating range for real winter use
- + 2-year warranty, unusual for outdoor gear at this price
Cons
- − No energy monitoring at all, and TP-Link has publicly refused to add it — the cheaper indoor Kasa plugs meter, this does not
- − IP64 is splash resistance, not immersion; a plug sitting in standing water or snowdrift is outside the rating
- − 15A is the total for the pair, not per outlet — two 1,000W devices will trip it
- − Needs a Matter controller for Apple, Google or SmartThings; only the Kasa app works standalone
Kasa Matter Smart Outdoor Plug EP40M review: what the specs say
The best-built outdoor Matter plug, and the one TP-Link refuses to give energy monitoring. At $25.99, TP-Link's 2024 model sits among the cheapest we cover — the smart Plugs we compare run from $11.99 to $52.99. It scores 7.0/10 overall, calculated from published specifications across 8 categories rather than from a subjective impression.
Its strongest showing is Ecosystem Support at 9.0/10 — matter, HomeKit, Alexa, Google, SmartThings and Home Assistant coverage. The weakest is Energy Monitoring at 0.0/10, which is the trade-off to weigh before buying: if that is the specification you care about most, one of the alternatives below will serve you better.
Worth knowing before you buy: no energy monitoring at all, and TP-Link has publicly refused to add it — the cheaper indoor Kasa plugs meter, this does not; and IP64 is splash resistance, not immersion; a plug sitting in standing water or snowdrift is outside the rating. Every specification on this page comes from TP-Link's own documentation or a verified retail listing — where a figure is not published, the table says so rather than estimating it.
Specifications and price last verified . Report an error
Full Specifications
| Max Load | 15A / 1,875W total, shared across both outlets |
| Motor / Inductive Rating | 1/2 HP |
| Energy Monitoring | No — TP-Link staff confirmed on its own forum that it cannot be added by firmware and closed the request as Declined |
| Radio & Protocol | Matter over Wi-Fi (2.4GHz), Bluetooth for commissioning |
| Hub Required | No for the Kasa app; a Matter controller is required for Apple/Google/SmartThings |
| Works Without Internet | Yes — Matter control is local and Kasa keeps LAN control |
| Switched Outlets | 2 |
| Pack Size | 1 |
| Price per Switched Outlet | 13 $ |
| Dimensions | 110 x 39 x 81 mm (4.33 x 1.54 x 3.19 in) |
| Blocks Second Outlet | Not applicable — mounts on its own clamp rather than sitting on a duplex receptacle |
| Weather Rating | IP64, ETL certified, -4°F to 122°F. The IP64 figure covers the sealed body; TP-Link publishes no rating for a socket with a cord inserted and the sockets are meant to face down |
| Connectivity | 2.4GHz Wi-Fi, Matter over Wi-Fi, Bluetooth (setup only) |
| Material | UL94 V-0 flame-retardant polycarbonate |
| Warranty | 24 months |
Compare Kasa Matter Smart Outdoor Plug EP40M With
Premium Alternative
Wyze Plug Outdoor (WLPPO1-1) — $29.98