Feb 01, 2026 As an Amazon Associate I earn from qualifying purchases.
AirHot TM400
This ultra-thin (4.6 inches) portable treadmill features a quiet 2.5HP motor supporting up to 265 lbs, a 40"x16" turf-textured, non-slip running belt with a 14-point shock absorption system for knee protection, and a digital monitor with remote to track fitness data across speeds of 0.6-3.7MPH.
Warranty
Default coverage: 1 year·Provider: manufacturer·Notes: Manual promises one-year coverage on the whole machine from purchase.
The TM400 manual (PDF) states “warranty period for the whole machine is one year (starting from the date of purchase).”
Motor
Motor type: Brushed
The product page only touts a "2.5 HP motor" with no brushless claim, so the drive is treated as brushed.
Price
Airhot store listed $105.99 (compare-at $299.98) on 2025-04-18.
No mention of "brushless" anywhere in Amazon listing, brand page, or comparison table
Amazon "Input Power" field: "2.5 Horsepower" (no qualifier)
The motor is brushed; no evidence of brushless appears in any source.
Source: Amazon listing + brand product page
Continuous horsepower (CHP)
Amazon "Maximum Horsepower": 2.5 HP
Amazon comparison table: explicitly labeled "Peak HP Motor: 2.5 HP"
Amazon "Input Power": 2.5 Horsepower
No wattage, no amps, no continuous rating published anywhere
Brand page only says "2.5 horsepower motor" without qualifying continuous vs peak
Amazon explicitly using "Peak HP Motor" in the comparison table is strong evidence this is peak-only
The 2.5 HP figure is peak. No continuous rating is derivable - no electrical specs (watts or amps) are published.
Source: Amazon listing comparison table
Warranty: 12 months
Amazon "Warranty Description": "1" (i.e., 1 year)
Brand warranty page (https://airhot.com/pages/warranty): "Up to 1 year limited warranty... The warranty period for all coverage begins from the date of purchase and will remain in place for a period of 1 year."