Automotive RepairDiagnostics & Troubleshooting2MildCar Owner$ implied

User cannot trust their antifreeze tester giving inaccurate readings for premixed coolant.

The $5 floating tester is inaccurate and cannot be trusted for precise coolant mixture verification.

Opp. Score

Severity

2Mild

Willingness to Pay

implied

Added

Apr 27, 2026

App Concept

CoolCheck Pro

CoolCheck Pro is a digital refractometer that gives instant, accurate antifreeze concentration readings. Unlike cheap floating testers, it provides precise measurements for ethylene glycol and propylene glycol mixtures. Simply place a drop on the prism and read the digital display.

Key Features

Digital readout with 0.1% accuracy
Auto-calibration with distilled water
Measures both ethylene and propylene glycol
Temperature compensation

Target Users: DIY car owners and auto mechanics who need reliable coolant testing

Revenue Model: $49.99 one-time purchase

Existing Solutions Mentioned

$5 floating arrow type tester

Part of App Idea

CoolantIQ

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