
Mueller-Kueps 727 090 DEF/AD-Blue 4-in-1 Refractometer | Multi-Functional Tester for AdBlue, Coolant, Washer Fluid & Battery Acid
The Mueller-Kueps 727 090 is a versatile 4-in-1 refractometer designed for automotive professionals and enthusiasts. This handy tool quickly and accurately tests the quality of AdBlue (DEF), radiator coolant (G12/G13), windshield washer fluid, and battery acid. With its four scales, this refractometer simplifies maintenance tasks and ensures optimal vehicle performance.
Key Features:
- 4-in-1 Functionality: Tests AdBlue, coolant, washer fluid, and battery acid with a single device.
- Easy to Use: Simple operation with clear scales and included accessories.
- Accurate Measurements: Provides precise readings for optimal maintenance and troubleshooting.
- Durable Construction: Built to withstand regular use in automotive environments.
- Compact and Portable: Easily fits in a toolbox or glove compartment.
Product Specifications:
- Model Number: 727 090
- Scales: AdBlue, G12/G13 coolant, windshield washer fluid, battery acid
- Measurement Range: Varies per scale (see manufacturer's website)
- Accuracy: +/- 1%
- Material: Metal and plastic
- Includes: Refractometer, soft cloth, long-neck dropper, screwdriver, pointer
Kit Includes:
- Refractometer
- Soft cloth for cleaning
- Long-neck dropper for sample collection
- Screwdriver for calibration adjustment
- Pointer for easy reading
Ideal for:
- Automotive professionals (mechanics, technicians)
- Vehicle owners and DIY enthusiasts
- Fleet maintenance personnel
- Anyone who wants to monitor the condition of their vehicle fluids
Simplify your vehicle maintenance routine with the Mueller-Kueps 727 090 4-in-1 Refractometer. Ensure optimal performance and longevity of your vehicle's critical fluids.

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