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Oakton WD-35634-15 Series Premium 50 Waterproof Pocket pH Tester

Rated3.0(1 rating)In stock

Good price

$287.06 is 17% below the $348.05 it normally sells for.

Now
$287.06
Normally
$348.05
Lowest in 140 days
$273.13(Nov 11)
Highest
$429.02
Evidence: Strong140 days tracked644 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 $287.06. No account, no newsletter.

Amazon price jumps and real deals, posted on X: @trackpindeals (opens in a new tab)

Price history

Tracked since Jun 24 · 140 days · 644 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 17% below its normal price of $348.05. Oakton WD-35634-15 Series Premium 50 Waterproof Pocket pH Tester price history, checked Nov 12, 2026: current price $287.06, normal (typical) price $348.05, average $323.36 over 140 days, lowest $273.13 (Nov 11, 2026), highest $429.02 (Nov 9, 2026).

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $348.05
  • 5% or more below normal

How often does it drop below normal?

In the 140 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 36 times, typically lasting about 1 day. It's below normal right now.

A count of what happened, not a prediction.

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B07BS9J64W
Request
curl https://trackpin.co/api/v1/product/B07BS9J64W \
  -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 06:50 UTC
{
  "asin": "B07BS9J64W",
  "title": "Oakton WD-35634-15 Series Premium 50 Waterproof Pocket pH Tester",
  "image": "https://m.media-amazon.com/images/I/517rlvAuNjL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "BISS Basic",
  "category_label": "Industrial & Scientific",
  "in_stock": true,
  "price": {
    "current_cents": 28706,
    "reference_cents": 34805,
    "discount_pct": 17.52,
    "is_deal": true,
    "observed_at": 1794464431672,
    "changed_at": 1794463014524,
    "checked_at": 1794464431672,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 17.52,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $287.06 is 17% below the $348.05 it normally sells for."
  },
  "listing_claim": null,
  "stats": {
    "min_cents": 27313,
    "max_cents": 42902,
    "avg_cents": 32336,
    "history_days": 140,
    "price_levels": 842,
    "price_changes": 644,
    "distinct_prices": 39,
    "lowest_at": 1794440436177
  },
  "history": [
    {
      "price_cents": 42892,
      "from": 1794426891007,
      "to": 1794427151997
    },
    {
      "price_cents": 27313,
      "from": 1794440436177,
      "to": 1794445768733
    },
    {
      "price_cents": 27862,
      "from": 1794447906181,
      "to": 1794449785664
    },
    {
      "price_cents": 28141,
      "from": 1794451947533,
      "to": 1794456012220
    },
    {
      "price_cents": 28706,
      "from": 1794463014524,
      "to": 1794464431672
    }
  ],
  "last_seen": 1794464431771
}
// … 837 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.