Hughes Power Watchdog PWD50-EPO
#2 in 50 ampFull review
A full EMS with phone monitoring and a replaceable module for 50 amp RVs. Strong value when it sells below the Gen II price.
Amazon $339.99$339.99
The Hughes Power Watchdog PWD50-EPO is the better RV surge protector overall, rated 4.3 to 3.5. The Hughes Power Watchdog PWD50-EPO leads on protection. The Hughes Power Watchdog PWD50 wins on price. The Hughes Power Watchdog PWD50 costs $120 less ($219.99 vs $339.99).
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
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-EPO for protection (high and low voltage cutoff, miswiring detection, restart delay, replaceable surge module vs replaceable surge module).
- Choose the Hughes Power Watchdog PWD50 for price ($219.99 vs $339.99).
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-EPO | Hughes Power Watchdog PWD50 |
|---|---|---|
| Overall rating | 4.3/5 | 3.5/5 |
| Protection 35% | 100 high and low voltage cutoff, miswiring detection, restart delay, replaceable surge module | 15 replaceable surge module |
| Surge rating 10% | 100 6,100 joules | 100 6,100 joules |
| Monitoring 10% | 50 app | 50 app |
| Price 20% | 32 $339.99 | 60 $219.99 |
| Warranty 25% | 100 lifetime warranty | 100 lifetime warranty |
Specifications
| Hughes Power Watchdog PWD50-EPO | Hughes Power Watchdog PWD50 | |
|---|---|---|
| Protection | ||
| Service | 50 A | 50 A |
| Type | EMS | Surge only |
| Surge rating | 6,100 J | 6,100 J |
| Voltage cutoffs | 104 V / 132 V | - |
| Miswiring detection | Yes | No |
| Restart delay | Yes | No |
| Replaceable surge module | Yes | Yes |
| Build | ||
| Mount | Portable | Portable |
| Display | No | No |
| App | Yes | Yes |
| Weatherproof | Yes | Yes |
| Warranty | Lifetime | Lifetime |
| Released | 2019-01-04 | 2018-01-16 |