Hughes Power Watchdog PWD30-EPO
#4 in 30 ampFull review
A full EMS with phone monitoring and a replaceable module for 30 amp RVs. Strong value when it sells below the Gen II price.
Amazon $309.99$309.99
The Hughes Power Watchdog PWD30-EPO rates 4.1 among 30 amp RV surge protectors; the Progressive Industries EMS-HW50C rates 3.3 among 50 amp ones. The Progressive Industries EMS-HW50C costs $121 less ($188.99 vs $309.99).
Progressive Industries EMS-HW50C
#11 in 50 ampFull review
The standard hardwired EMS for 50 amp coaches at under $200. Best for owners who are happy to install it once and forget it.
Amazon $188.99$188.99
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.
Scores side by side
These two sit in different service classes (30 amp and 50 amp), and each is scored against the reference points for its own class, so a rating says how well each does among its own service peers. How we rank explains each factor.
| Factor weight | Hughes Power Watchdog PWD30-EPO | Progressive Industries EMS-HW50C |
|---|---|---|
| Overall rating | 4.1/5 | 3.3/5 |
| Protection 35% | 100 high and low voltage cutoff, miswiring detection, restart delay, replaceable surge module | 70 high and low voltage cutoff, miswiring detection |
| Surge rating 10% | 82 3,000 joules | 93 3,580 joules |
| Monitoring 10% | 50 app | 50 volts and amps display |
| Price 20% | 8 $309.99 | 70 $188.99 |
| Warranty 25% | 100 lifetime warranty | 0 warranty not published, scored as none |
Specifications
| Hughes Power Watchdog PWD30-EPO | Progressive Industries EMS-HW50C | |
|---|---|---|
| Protection | ||
| Service | 30 A | 50 A |
| Type | EMS | EMS |
| Surge rating | 3,000 J | 3,580 J |
| Voltage cutoffs | 104 V / 132 V | - |
| Miswiring detection | Yes | Yes |
| Restart delay | Yes | - |
| Replaceable surge module | Yes | - |
| Build | ||
| Mount | Portable | Hardwired |
| Display | No | Yes |
| App | Yes | No |
| Weatherproof | Yes | - |
| Warranty | Lifetime | - |
| Released | - | 2010-03-02 |