Atago PAL-Urea Digital Handheld Refractometer – AdBlue/DEF Urea Concentration Meter

The Atago PAL-Urea is a digital handheld refractometer designed to rapidly and accurately measure urea concentration in AdBlue/DEF (Diesel Exhaust Fluid) used in diesel vehicles. For selective catalytic reduction (SCR) systems to function properly, AdBlue must maintain the standard urea ratio; this instrument measures between 0.0–55.0% urea concentration using only 2–3 sample drops in approximately 3 seconds.

The device displays urea concentration on its LCD screen with 0.1% resolution and ±0.2% accuracy. Thanks to its IP65 protection rating, it withstands water and dust exposure in field and workshop environments. Its compact and lightweight body (approximately 100 g main unit) operates on 2 AAA alkaline batteries, enabling portable field use. Note that the device lacks temperature compensation; measurements should be conducted within the specified operating temperature range.

It provides a practical, rapid, and sample-efficient solution for vehicle service centers, fleet maintenance operations, fuel/AdBlue dispensing stations, and quality control laboratories.

Technical Specifications

Applications

• Urea concentration control at AdBlue/DEF dispensing stations
• SCR system maintenance fluid quality verification at vehicle service centers
• Field-based rapid AdBlue testing in fleet management operations
• Quality control in urea solution manufacturing facilities