Klein / Measuring and Testing / Electrical Testers / ET310
Klein ET310 Circuit Breaker Finder
Price tracked since Apr 2019
$44.97
- At its usual price
Usually $44.97 over the past 90 days
Fair
Right at its usual price of $44.97. Lowest price in 5 months. It has dropped to $44.97 or less 269 times in the past year.
Price checked Oct 3 2026, 12:12 AM ET. Prices change. Confirm the live price on Amazon before buying. ToolBuck earns a commission on qualifying purchases.
View on Amazon Specs
| Brand | Klein |
|---|---|
| Model | ET310 |
| Type | Circuit Breaker Finder |
| Weight | 0.4 lb |
| In the box | Digital Circuit Breaker Finder, GFCI Outlet Tester |
Price History
The gray band is the usual range: where the price sat for the middle half of the 90 days shown.
Klein ET310 price over 90 days. Current price $44.97. Usual range $44.97. Low $44.97, high $49.97.
The gray band is the usual range: where the price sat for the middle half of the 1 year shown.
Klein ET310 price over 1 year. Current price $44.97. Usual range $44.97 to $44.98. Low $44.92, high $49.97.
The gray band is the usual range: where the price sat for the middle half of the tracked history shown. The all-time line shows the lowest price of each week.
Klein ET310 price over all time. Current price $44.97. Usual range $41.63 to $49.97. Low $34.79, high $59.49.
Line: Amazon price. Red dot: current price. Gaps mean no offer at that time.
- Current $44.97 Checked Oct 3 2026, 12:12 AM ET
- Usual range $44.97 Over the past 90 days. At its usual price
- Lowest ever $34.79 Nov 25 2020
- 90-day high $49.97
- Drops in 90 days 54
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Prices checked between Oct 2 2026, 11:17 PM ET and Oct 3 2026, 12:37 AM ET.
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Prices checked between Oct 2 2026, 11:52 PM ET and Oct 3 2026, 12:27 AM ET.
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Prices checked between Oct 3 2026, 12:12 AM ET and Oct 3 2026, 12:47 AM ET.
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Klein CL120 Digital clamp meter, auto-ranging, 400A AC$63.89 Fair, 1% below -
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Klein MM325 Digital multimeter, manual-ranging, 600V$29.98 Fair, at usual
-
Klein NCVT7 Non-contact voltage tester with LCD, 12 to 1000V AC$24.98 Fair, at usual
Prices checked between Oct 2 2026, 11:37 PM ET and Oct 3 2026, 12:32 AM ET.
Prices are the Amazon.com price for a new item. "Usual" is this tool's own price over the past 90 days or the past year, whichever is closer to today's price: the usual range is where it sat for the middle half of that time, and percentages are measured against its median price over 90 days or over the past year, whichever is closer to the current price. Out-of-stock time is left out. ToolBuck has price history for this listing going back 2,725 days. Prices and availability are accurate as of the time shown and can change. The price on Amazon at the time of purchase is the one that applies. How ToolBuck works.