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Mrisata Hot Stirling Engine Model Electricity Generator, Stirling Engine Aircraft Experiment Model Science Toy Physics Learning Education, Stirling Engine Aircraft Hot Air Stirling Engine Model

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Rated5.0(2 ratings)In stock

Good price

$81.89 is 10% below the $90.99 it normally sells for, and the lowest we've seen in 136 days.

Now
$81.89
Normally
$90.99
Lowest in 136 days
$81.89(Nov 9)
Highest
$90.99
Evidence: Strong136 days tracked2 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

Prices change. Confirm the price on Amazon before you buy. TrackPin may earn a commission if you buy, at no cost to you; it never changes a verdict.

Get an email when the price drops

Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $81.89. No account, no newsletter.

Price history

Tracked since Jun 28 · 136 days · 2 price changes

Loading the price chart.

  • Price
  • Normal $90.99
  • 5% or more below normal

How often does it drop below normal?

In the 136 days we've tracked it, this is the first time it has stayed 5% or more below today's normal price for an hour or more. It has been below normal for about 5 days so far.

A count of what happened, not a prediction.

Other ways to buy

  • New from

    $81.89

    XiaongSeller rating 49% of 125

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B0C9ZLZGY9
Request
curl https://trackpin.co/api/v1/product/B0C9ZLZGY9 \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 19:26 UTC
{
  "asin": "B0C9ZLZGY9",
  "title": "Mrisata Hot Stirling Engine Model Electricity Generator, Stirling Engine Aircraft Experiment Model Science Toy Physics Learning Education, Stirling Engine Aircraft Hot Air Stirling Engine Model",
  "image": "https://m.media-amazon.com/images/I/51y3BrQkjrL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Office Product",
  "category_label": "Office",
  "in_stock": true,
  "price": {
    "current_cents": 8189,
    "reference_cents": 9099,
    "discount_pct": 10,
    "is_deal": true,
    "observed_at": 1794412549634,
    "changed_at": 1794216376304,
    "checked_at": 1794412549634,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 10,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $81.89 is 10% below the $90.99 it normally sells for, and the lowest we've seen in 136 days."
  },
  "listing_claim": null,
  "stats": {
    "min_cents": 8189,
    "max_cents": 9099,
    "avg_cents": 9059,
    "history_days": 136,
    "price_levels": 191,
    "price_changes": 2,
    "distinct_prices": 3,
    "lowest_at": 1794216376304
  },
  "history": [
    {
      "price_cents": 9099,
      "from": 1785310032325,
      "to": 1785321328724
    },
    {
      "price_cents": 9099,
      "from": 1785322567543,
      "to": 1785323794682
    },
    {
      "price_cents": 9099,
      "from": 1785325089653,
      "to": 1793961047318
    },
    {
      "price_cents": 8619,
      "from": 1793962989144,
      "to": 1794207365306
    },
    {
      "price_cents": 8189,
      "from": 1794216376304,
      "to": 1794412549634
    }
  ],
  "last_seen": 1794412549634
}
// … 186 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.