Skip to content
TrackPin
Check a price
Menu
Developers

Theme

Mitutoyo 178-390, Standard Detector for Surftest SJ-201 and SJ-301 | Dedicated to the standard/retractable drive unit, for SJ-210 and SJ-310 Surface Roughness Testers, 90 degree angle

Show full title
Rated5.0(9 ratings)Only 5 left

Normal price

$349.84 is what it normally sells for.

Now
$349.84
Normally
$349.84
Lowest in 142 days
$286.99(Jul 29)
Highest
$500.89
Evidence: Strong142 days tracked13 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. No account, no newsletter.

The listing's crossed-out price

Not below normal

The listing shows

crossed out: List $783.00 −55%

Against its normal price

≈ 0% vs $349.84

This product has sold at or within 3% of $349.84 for at least about a week of the last 45 days, so today's price isn't below its normal price.

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 22 · 142 days · 13 price changes

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $349.84
  • 5% or more below normal

How often does it drop below normal?

In the 142 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more twice, typically lasting about 13 days. The last time ended Aug 28.

A count of what happened, not a prediction.

Other ways to buy

  • New from

    $348.85

    CRESCENT ELECTRIC SUPPLY COMPANYFulfilled by Amazon · Seller rating 98% of 1,806

11 of 13 offers
The 10 lowest of 11 offers, by price
SellerConditionPriceFBASeller rating
CRESCENT ELECTRIC SUPPLY COMPANYNew$348.85Yes98% of 1,806
Profile FlatwareNew$350.00Yes100% of 101
YuByKa storeNew$397.00Yes98% of 180
Ideal Precision Instrument Service, Inc.New$710.01No94% of 202
MSI VikingNew$710.72No95% of 320
Homestead Supply & More ✅New$762.26No71% of 20,428
DIY Premium SuppliesNew$840.42No64% of 437
VirVenturesNew$855.57No85% of 179,100
UnbeatableSale LocalNew$857.53No66% of 4,265
UnbeatableSale, IncNew$858.23No66% of 264,256

Showing the 10 lowest of 11 offers.

Amazon lists 13 offers. These are from the first page of its offer list, sorted by price plus delivery, so a lower price may be further down.

More real deals in Industrial & Scientific

See all
Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B001OBYZ6O
Request
curl https://trackpin.co/api/v1/product/B001OBYZ6O \
  -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 19:24 UTC
{
  "asin": "B001OBYZ6O",
  "title": "Mitutoyo 178-390, Standard Detector for Surftest SJ-201 and SJ-301 | Dedicated to the standard/retractable drive unit, for SJ-210 and SJ-310 Surface Roughness Testers, 90 degree angle",
  "image": "https://m.media-amazon.com/images/I/5102qGa62AL._AC_SL500_.jpg",
  "currency": "USD",
  "category": "BISS Basic",
  "category_label": "Industrial & Scientific",
  "in_stock": true,
  "price": {
    "current_cents": 34984,
    "reference_cents": 34984,
    "discount_pct": 0,
    "is_deal": false,
    "observed_at": 1794424771609,
    "changed_at": 1793833954871,
    "checked_at": 1794424771609,
    "source": "stored"
  },
  "verdict": {
    "label": "normal",
    "text": "Normal price",
    "pct_vs_normal": 0,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Normal price. $349.84 is what it normally sells for."
  },
  "listing_claim": {
    "label": "List:",
    "listing_reference_cents": 78300,
    "claimed_pct": 55,
    "real_pct": 0,
    "class": "not_below_normal",
    "observed_at": 1794424811561
  },
  "stats": {
    "min_cents": 28699,
    "max_cents": 50089,
    "avg_cents": 35622,
    "history_days": 142,
    "price_levels": 209,
    "price_changes": 13,
    "distinct_prices": 11,
    "lowest_at": 1785321890971
  },
  "history": [
    {
      "price_cents": 36999,
      "from": 1789981655324,
      "to": 1791796608006
    },
    {
      "price_cents": 35999,
      "from": 1791797569319,
      "to": 1792015278065
    },
    {
      "price_cents": 39985,
      "from": 1792032072673,
      "to": 1793613909336
    },
    {
      "price_cents": 39585,
      "from": 1793614741524,
      "to": 1793832421713
    },
    {
      "price_cents": 34984,
      "from": 1793833954871,
      "to": 1794424771609
    }
  ],
  "last_seen": 1794424811561
}
// … 204 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.