For an RV or boat that wants a listed 1,000 W inverter with GFCI outlets. The newer PST-1000-12HD adds a hardwire terminal.
The Samlex PST-1000F-12 is the better 12V inverter overall, rated 3.0 to 2.6. The Samlex PST-1000F-12 leads on idle draw. The Samlex PST-1000-12HD wins on efficiency and features.

For RV and boat builders who need a listed 1,000 W inverter that can be hardwired. Shoppers on a budget get more from the NTX-1000-12.
Amazon $637.55Prices were last checked October 24, 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 Samlex PST-1000F-12 for idle draw (0.8 A idle (about 9.6 W) with nothing plugged in vs 0.9 A idle (about 10.8 W) with nothing plugged in).
- Choose the Samlex PST-1000-12HD for efficiency (88% peak efficiency (maker rating) vs 85% peak efficiency (maker rating)) and features (optional remote, hardwire terminal; no app vs optional remote; no app).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every up to 1,000 W 12V inverter; a clear win is highlighted. How we rank explains each one.
| Factor weight | Samlex PST-1000F-12 | Samlex PST-1000-12HD |
|---|---|---|
| Overall rating | 3.0/5 | 2.6/5 |
| Value 30% | 50 no current price (neutral score used) | 0 $0.64 per continuous watt |
| Idle draw 15% | 27 0.8 A idle (about 9.6 W) with nothing plugged in | 13 0.9 A idle (about 10.8 W) with nothing plugged in |
| Safety listing 15% | 100 Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 | 100 Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Warranty 15% | 50 3-year warranty | 50 3-year warranty |
| Features 15% | 12 optional remote; no app | 28 optional remote, hardwire terminal; no app |
| Efficiency 10% | 0 85% peak efficiency (maker rating) | 33 88% peak efficiency (maker rating) |
Specifications
| Samlex PST-1000F-12 | Samlex PST-1000-12HD | |
|---|---|---|
| Output | ||
| Type | Pure sine wave inverter | Pure sine wave inverter |
| Continuous power | 1,000 W | 1,000 W |
| Surge power | 2,000 W for 8 ms | 2,000 W for 8 ms |
| DC input range | 10.7 to 16.5 V | 10 to 18 V |
| Idle draw | 0.8 A (9.6 W) | 0.9 A (10.8 W) |
| Peak efficiency | 85% | 88% |
| Connections | ||
| AC outlets | 2 | 2 |
| GFCI outlets | Yes | Yes |
| Hardwire terminal | No | Yes |
| USB ports | None | None |
| Transfer switch | No | No |
| Parallel units | No | No |
| Control and build | ||
| Remote | Optional extra | Optional extra |
| App | No | No |
| Display | No | No |
| Safety listing | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Cooling | fan | fan |
| Dimensions | 238 x 397 x 82 mm | 333 x 238 x 82 mm |
| Weight | 8.8 lb | 8.3 lb |
| Warranty | 3 years | 3 years |