We may earn a small commission on purchases made through our links.

Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.

x
Sorry, Something went wrong!
OBDResource

OBDResource Automotive 24V Car Power Circuit Probe Tester with LCD Display

✅ In stock
F
Grade
💤 Not a Deal
4/100
Current Price
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply to the purchase of this product.
$49.99
Listed $45.99
Analysis Confidence 73%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 24, 2026 2:44 PM · Prices & availability subject to change

Is This a Good Price on Amazon?

💤 Not a Deal
  • 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
  • 💰The current price is slightly above the going rate for this product — worth watching for a drop.
  • 📉A lower price did appear very recently, suggesting the market may revisit that level before long.
  • ➡️Pricing has held fairly steady, with no strong push in either direction.

How We Scored This Deal

Price Competitiveness 0/28
Recent Value 0/22
Market Standing 0/20
Deal Strength 0/20
Momentum 4/10

📝 Product Overview

🏪 Sold by Link Start
📦 Fulfillment Fulfilled by Amazon
🚚 Shipping Free Shipping

Product Details

✓【Four-in-One Power Circuit Diagnostic Tool】The OBDResource CP20 Circuit Tester integrates a digital multimeter, digital oscilloscope, automotive circuit testing, and component activation functions into one portable smart electrical system testing device. Enhanced protection mechanisms guard against reverse polarity on input signal lines, excessive input voltage, and overloaded current, ensuring safer and more convenient operation.
✓【Simple and Intuitive Interface】The CP20 automotive power circuit probe tester supports full-vehicle electrical system testing from 0–80V. After powering on, it cycles between two advanced modes: ① Multimeter and oscilloscope combination mode, ② Component activation mode. Equipped with a 2.4-inch high-definition color screen, LED indicators, a buzzer, and high-sensitivity probes, test processes and results are displayed in real-time on the TFT screen for clear and intuitive visualization.
✓【Multimeter + Oscilloscope Mode】In multimeter mode, this tester supports six functions: voltage, resistance, diode, continuity (ON/OFF), polarity (P-N), and frequency testing. It can read maximum/minimum voltage, frequency, and duty cycle. Oscilloscope mode provides five signal monitoring functions: camshaft, crankshaft, injector, throttle signal, and CAN bus polarity detection.
✓【Component Activation + Dual Protection】The ECT300 tester activates automotive components via probes to verify operation of lights, motors, wipers, cooling fans, relays, injectors, and more. Its dual protection system guards against overcurrent and overheating with millisecond response times, effectively preventing short-circuit damage.
✓【Multi-Language · Long Cable · After-Sales Support】This tool supports 12 languages (including English, German, French, Japanese, etc.), features a 16-foot cable with LED illumination and audible alarm, and is compatible with 0–80V vehicle electrical systems. Suitable for cars, trucks, boats, excavators, motorcycles, and more, it's widely used in repair shops, education, home, and industrial settings. The product comes with a 1-year warranty and a 30-day no-questions-asked return policy.

⚙️ Specifications

Brand
OBDResource
Power Source
Corded Electric
Style
CP20
Color
CP03
Compatible Devices
Vehicles (Cars, Trucks, Boats, Excavators, Motorcycles) with 0-80V electrical systems
Measurement Type
Multimeter
Style Name
CP20
Brand Name
OBDResource
Model
CP20
Unit Count
1 Count
UPC
679070384121
F
$49.99
Check Deal →