Skip to content
TrackPin
Check a price
Menu
Developers

Theme

Chihiros Dosing Pump System - 4-Channel Automatic Aquarium Doser with Smart App Operation for Precision Nutrient Delivery, 4 Dosing Containers, Holder & Tubing for Reef Tank & Freshwater Setups

Show full title
Rated4.0(122 ratings)In stock

Good price

$199.99 is 9% below the $219.99 it normally sells for, and the lowest we've seen in 139 days.

Now
$199.99
Normally
$219.99
Lowest in 139 days
$199.99(Nov 8)
Highest
$219.99
Evidence: Strong139 days tracked1 price change

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 $199.99. No account, no newsletter.

The listing's crossed-out price

Holds up

The listing shows

crossed out: Typical $219.99 −9%

Against its normal price

−9% vs $219.99

Typical $219.99 (−9%) holds up: today's price is 9% below normal.

The crossed-out price is the reference shown on the listing. We don't know how it was set; we only compare it with prices we've observed. How we check →

Price history

Tracked since Jun 24 · 139 days · 1 price change

Loading the price chart.

  • Price
  • Normal $219.99
  • 5% or more below normal

How often does it drop below normal?

In the 139 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 3 days so far.

A count of what happened, not a prediction.

More real deals in Tools & Home Improvement

See all
Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B0C38D437T
Request
curl https://trackpin.co/api/v1/product/B0C38D437T \
  -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 21:51 UTC
{
  "asin": "B0C38D437T",
  "title": "Chihiros Dosing Pump System - 4-Channel Automatic Aquarium Doser with Smart App Operation for Precision Nutrient Delivery, 4 Dosing Containers, Holder & Tubing for Reef Tank & Freshwater Setups",
  "image": "https://m.media-amazon.com/images/I/7178Az44jqL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Home Improvement",
  "category_label": "Tools & Home Improvement",
  "in_stock": true,
  "price": {
    "current_cents": 19999,
    "reference_cents": 21999,
    "discount_pct": 9.09,
    "is_deal": true,
    "observed_at": 1794422417880,
    "changed_at": 1794180907674,
    "checked_at": 1794422417880,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 9.09,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $199.99 is 9% below the $219.99 it normally sells for, and the lowest we've seen in 139 days."
  },
  "listing_claim": {
    "label": "Typical:",
    "listing_reference_cents": 21999,
    "claimed_pct": 9,
    "real_pct": 9.09,
    "class": "holds_up",
    "observed_at": 1794355881429
  },
  "stats": {
    "min_cents": 19999,
    "max_cents": 21999,
    "avg_cents": 21929,
    "history_days": 139,
    "price_levels": 131,
    "price_changes": 1,
    "distinct_prices": 2,
    "lowest_at": 1794180907674
  },
  "history": [
    {
      "price_cents": 21999,
      "from": 1784007541736,
      "to": 1784007541736
    },
    {
      "price_cents": 21999,
      "from": 1784012401173,
      "to": 1784012401173
    },
    {
      "price_cents": 21999,
      "from": 1784022886393,
      "to": 1784022886393
    },
    {
      "price_cents": 21999,
      "from": 1788562451723,
      "to": 1794166850376
    },
    {
      "price_cents": 19999,
      "from": 1794180907674,
      "to": 1794422417880
    }
  ],
  "last_seen": 1794422417880
}
// … 126 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.