Hughes Power Watchdog PWD50
#8 in 50 ampFull review
A surge protector with phone monitoring and a replaceable module for 50 amp RVs. It suits owners who want to watch park power but don’t need automatic shutoff.
Amazon $219.99$219.99
The Hughes Power Watchdog PWD50 is the better RV surge protector overall, rated 3.5 to 3.4. The Hughes Power Watchdog PWD50 leads on protection and monitoring. The Southwire Surge Guard 44290 wins on price. The Southwire Surge Guard 44290 costs $142 less ($77.99 vs $219.99).
Southwire Surge Guard 44290
#10 in 50 ampFull review
A high capacity 50 amp surge protector with more diagnostics than its price suggests. For coaches that don’t need voltage cutoff.
Amazon $77.99$77.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Hughes Power Watchdog PWD50 for protection (replaceable surge module vs surge only) and monitoring (app vs indicator lights only).
- Choose the Southwire Surge Guard 44290 for price ($77.99 vs $219.99).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 50 amp RV surge protector; a clear win is highlighted. How we rank explains each one.
| Factor weight | Hughes Power Watchdog PWD50 | Southwire Surge Guard 44290 |
|---|---|---|
| Overall rating | 3.5/5 | 3.4/5 |
| Protection 35% | 15 replaceable surge module | 0 surge only |
| Surge rating 10% | 100 6,100 joules | 100 4,200 joules |
| Monitoring 10% | 50 app | 0 indicator lights only |
| Price 20% | 60 $219.99 | 100 $77.99 |
| Warranty 25% | 100 lifetime warranty | 100 lifetime warranty |
Specifications
| Hughes Power Watchdog PWD50 | Southwire Surge Guard 44290 | |
|---|---|---|
| Protection | ||
| Service | 50 A | 50 A |
| Type | Surge only | Surge only |
| Surge rating | 6,100 J | 4,200 J |
| Miswiring detection | No | - |
| Restart delay | No | - |
| Replaceable surge module | Yes | - |
| Build | ||
| Mount | Portable | Portable |
| Display | No | No |
| App | Yes | No |
| Weatherproof | Yes | - |
| Lock | - | Yes |
| Warranty | Lifetime | Lifetime |
| Released | 2018-01-16 | - |