Portable EMS, 30 A, Bluetooth
Hughes Power Watchdog PWD30-EPO 30 Amp Bluetooth RV Surge Protector with Auto Shutoff
A 30 A portable with 3,000 J of surge protection, an Emergency Power Off that cuts the RV off below 104 V or above 132 V, a replaceable surge module, and a Bluetooth app that shows volts, amps and watts on your phone.
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Best for
30 A owners who want the pedestal readings on a phone inside the RV, and a surge module they can replace instead of the whole unit
Specifications
| Service | 30 A, 120 V, 3,600 W |
|---|---|
| Surge protection | 3-mode (L-N, L-G, N-G); 3,000 J; 6,500 A per MOV |
| Emergency Power Off | Shuts off below 104 V or above 132 V; restores automatically once stable for 90 s |
| Wiring checks | Reverse polarity check; voltage-on-ground check (Hughes spec table) |
| Reconnect delay | 90 s power-on delay after a fault clears |
| App | Bluetooth to Hughes's free iOS/Android app: live voltage, amperage, wattage, fault alerts; LED diagnostics on the unit |
| Surge module | User-replaceable; Hughes offers one free replacement module within the first two years (proof of purchase) |
| Weather | IP65 — dust and rain |
| Size | 11½ × 5½ × 3¾ in; about 31 in long with cables |
| Warranty | Limited Lifetime (Hughes) |
Specifications as published by Hughes Autoformers. Confirm against the current spec sheet before buying — manufacturers revise models without renaming them.
What's good
- Highest joule rating of the 30 A units here, and the surge element is a plug-in module — a hit on the pedestal doesn't retire the whole protector
- The phone app means checking park power without going outside; fault alerts arrive as notifications
- Same 104/132 V window as the Progressive EMS, with a shorter 90 s reconnect
- IP65 is an actual stated ingress rating, which the Progressive and Southwire portables don't publish
What's not
- Hughes's product page and spec table name reverse-polarity and voltage-on-ground checks and the voltage cut-offs; open-neutral detection is not spelled out, so we don't claim it
- Bluetooth only on the Gen I — monitoring from away from the RV needs Hughes's Gen II Wi-Fi version
- Theft lock is a separate accessory (Hughes's adjustable security cable lock), not built in
- The 90 s reconnect is shorter than the 136 s the Progressive uses for compressor protection
Our verdict
The pick for anyone who would rather read park power on a phone than on a small scrolling display, and who likes that a spent surge module is a cheap part rather than a new unit. It covers the voltage faults that matter most. If you want every pedestal wiring fault enumerated in the manual, the Progressive EMS documents more; if you want the readings on your couch, this one does.
Compare with the alternatives
- Progressive Industries EMS-PT30X — any 30 a rv that moves between campgrounds — the one unit to own if you buy only one
- Progressive Industries EMS-PT50X — 50 a rvs with two air conditioners, where a dropped leg or a low leg is the common campground problem
- Southwire Surge Guard 34950 — 50A Portable Surge Guard with Enhancement, O/U, LCD, 50A 240V — 50 a rigs whose owners want a plain-english lcd readout and a lock ring on the cord, with a 30 a sibling (34930) for the smaller coach