Go Power! ASW-1800-12-TS
#31 in 1,100 to 2,000 WFull review
For RVs that already have a converter or solar charging and want an inverter with a built-in transfer switch.
Amazon $621.27$621.27
2.9/5
For RVs and boats that need a listed 1,500 W inverter for a microwave or coffee maker.
- 1,500 WContinuous
- 3,000 WSurge
- 1 AIdle draw
- YesUL listed
- 3 yearsWarranty
Check price at Amazon$616.04
Price checked October 24, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- ETL listed to UL 458 for RV and marine installs
- GFCI outlets and a hardwire terminal
- Runs a microwave or coffee maker
- Three-year warranty
Cons
- Draws 1 A idle with no power-saving mode
- Remote costs extra
The Samlex PST family
Every Samlex PST model we rank, smallest first. Ratings compare each against its own size.
| Model | Continuous | Rating | Price |
|---|---|---|---|
| Samlex PST-120-12 | 120 W | 2.2/5 | $206.29 |
| Samlex PST-150-12 | 150 W | 2.7/5 | - |
| Samlex PST-300-12 | 300 W | 2.7/5 | $251.80 |
| Samlex PST-600-12 | 600 W | 2.8/5 | $315.83 |
| Samlex PST-1000F-12 | 1,000 W | 3.0/5 | - |
| Samlex PST-1000-12HD | 1,000 W | 2.6/5 | $637.55 |
| Samlex PST-1500-12 (this one) | 1,500 W | 2.9/5 | $616.04 |
| Samlex PST-2000-12 | 2,000 W | 2.8/5 | $1,096.99 |
| Samlex PST-3000-12 | 3,000 W | 3.3/5 | - |
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | PST-1500-12 |
|---|---|
| Output | |
| Type | Pure sine wave inverter |
| Continuous power | 1,500 W |
| Surge power | 3,000 W |
| DC input range | 10.7 to 16.5 V |
| Idle draw | 1 A (12 W) |
| Peak efficiency | 85% |
| Connections | |
| AC outlets | 2 |
| GFCI outlets | Yes |
| Hardwire terminal | Yes |
| USB ports | None |
| Transfer switch | No |
| Parallel units | No |
| Control and build | |
| Remote | Optional extra |
| App | No |
| Display | No |
| Safety listing | Intertek ETL listed; conforms to UL 458 and certified to CSA C22.2 No. 107.1 |
| Cooling | fan |
| Dimensions | 263 x 468.2 x 105.6 mm (10.35 x 18.43 x 4.16 in) |
| Weight | 15.6 lb |
| Warranty | 3 years |
Alternatives in this size
Giandel GS-2000SAR 2000W Pure Sine
#32 in 1,100 to 2,000 WFull review
A plug-in 2000 W inverter for campers who want GFCI outlets and two remotes. Pick the PS-2000SDR instead if you need to hardwire it.
Amazon $249.95 Giandel $238.82$238.82
Samlex PST-2000-12
#34 in 1,100 to 2,000 WFull review
For listed 2,000 W installs in RVs and boats. The NTX-2000-12 is the cheaper Samlex for most buyers.
Amazon $1,096.99$1,096.99
Compare
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