Our take
LG LRMP1270ST is a 1.2-cu.-ft. countertop sensor microwave with 1,200-W output and 120-V/60-Hz supply. Its manual requires a 20-A circuit and states 1,650-W input/13.8 A. TrueCookPlus service, finish, tray size and trim remain unverified; LG does not recommend commercial use.
Consider LRMP1270ST if you want sensor cook/reheat and code-driven TrueCookPlus programs in a 1.2-cu.-ft. countertop microwave and can satisfy the manual's 20-A circuit instruction. Verify the nameplate, ventilation and cookware fit. Treat TrueCookPlus service access, exterior finish and trim compatibility as open questions, and do not use it for commercial duty based on the manual's household-use limitation..
If your circuit cannot meet the 20-A instruction, or you require a verified trim kit, stainless finish or current code service, choose a model with exact documentation for those details. LG says household use only, so select a manufacturer-classified foodservice model for commercial placement.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The exact manual lists a 1.2-cu.-ft. cavity and 1,200-W microwave output.
- Quick Touch Sensor cook/reheat and separate TrueCookPlus code control are documented.
- The manual gives detailed 120-V/60-Hz, 1,650-W/13.8-A requirements and a 20-A circuit instruction.
What to weigh up
- The 20-A circuit requirement can rule out an otherwise convenient outlet location.
- Current access to the external TrueCookPlus code service is unverified.
- Finish, tray diameter and trim fit are unknown, and LG says household use only rather than commercial use.
The key details
| Model covered | LRMP1270ST |
|---|---|
| Capacity | LRMP1270ST exact manual: 1.2 cu. ft.; countertop household model |
| Microwave output | 1,200-W microwave output; separate 1,650-W input and 13.8-A current |
| Cooking approach | 120 V AC/60 Hz; manual requires a dedicated 20-A circuit |
| Installation options | Quick Touch Sensor cook/reheat plus TrueCookPlus code-based automatic control |
| Finish and turntable | No exact finish, tray diameter or trim pairing established; not recommended for commercial use |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
What the features mean for you
Use the 1.2-cu.-ft. cavity and 1,200-W output as size anchors
The exact manual lists a 1.2-cu.-ft. cavity and 1,200-W microwave output. These are useful for comparing size and stated cooking power with compact models, but they do not guarantee a particular heating time or cookware fit. The exact turntable diameter was not established in the reviewed material, so measure the tray and dish rather than inferring its rotating clearance from cavity volume.
Distinguish Quick Touch Sensor from code-based cooking
The manual describes Quick Touch Sensor cooking for named foods and Quick Touch Sensor Reheat for prepared dishes. It separately describes TrueCookPlus, where a food-specific code adjusts time and power. Those are two documented automatic approaches. Follow the exact tables and instructions, and do not assume the code website remains available today merely because the legacy manual points to it.
Plan for the stated 20-A circuit
LG lists a 120-V AC/60-Hz supply, 1,650-W rated consumption and 13.8-A current; microwave output is 1,200 W. The installation section requires a 20-A circuit with no other appliances or lighting circuits on that line. This specific circuit instruction can rule out a convenient outlet location, so check the wiring and nameplate before choosing the oven or built-in arrangement.
Do not assume stainless or a cabinet kit
The source title says steel, but the exact-model documents inspected do not establish the full exterior finish or identify a trim-kit pairing. Keep those claims off the verified profile and check the unit label and physical item if finish matters. LG's manual describes countertop placement with four inches of clearance at the top, sides and back; that instruction does not authorize installing this model inside cabinetry.
Respect its household-use limit
The exact manual says the microwave is designed for household use only and is not recommended for commercial use. That is a stated boundary, not a guess from its size or consumer features. Keep commercialDuty false and select a manufacturer-classified commercial model when the installation needs foodservice duty. The manual's electrical circuit requirement remains relevant even for ordinary household countertop placement.
What else to compare
Before you buy
What capacity and output does LRMP1270ST have?
LG's exact manual lists 1.2 cu. ft. capacity and 1,200-W microwave output.
What electrical supply and circuit does it need?
The manual lists 120 V/60 Hz, 1,650-W input and 13.8 A, with a 20-A circuit requirement.
Does it have sensor cooking?
Yes. The manual documents Quick Touch Sensor cooking and separate sensor-reheat controls.
What is TrueCookPlus?
It accepts food-specific codes that manage cook time and power; current external code availability is unverified.
Is it for commercial use?
No. LG's manual says household use only and not recommended for commercial use.
Is the stainless finish or trim kit verified?
Neither an exact finish nor a compatible trim kit was established from the reviewed model documents.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- LG exact-model support record and LRMP1270ST owner's manual ↗ — checked October 5, 2026.
- LG exact-model support record identifies LRMP1270ST and lists its owner's manual under manuals/software; page fetch returned an internal error during this inspection. ↗ — checked October 5, 2026.
- LG-issued LRMP1270ST owner's manual copy: p. 5 lists 120-V/60-Hz, 1,650-W input, 1,200-W output, 13.8 A and 1.2 cu. ft.; it requires a 20-A circuit and countertop placement, says household use only/not recommended for commercial use, and describes Quick Touch Sensor/reheat and TrueCookPlus codes. ↗ — checked October 5, 2026.
- Historical exact-ASIN request returned an internal error; current exact offer is unverified. ↗Paid link · We may earn a commission. — checked October 5, 2026.
The decision
LG LRMP1270ST is a 1.2-cu.-ft. countertop sensor microwave with 1,200-W output and 120-V/60-Hz supply. Its manual requires a 20-A circuit and states 1,650-W input/13.8 A. TrueCookPlus service, finish, tray size and trim remain unverified; LG does not recommend commercial use.
Is it the right fit?
Check the exact model and today’s offers on Amazon.