The Thexton Mfg Co | Urea DEF Fluid CHEK Professional Tester | 108 is a professional-grade tester designed to test the urea concentration of Diesel Exhaust Fluid (DEF). The DEF-CHEK is accurate at all temperatures and features easy-to-read discs that are magnified by the convex design of the clear SAN plastic barrel. The tester also features a one-piece bulb and neoprene dip tube.

If the DEF concentrate is not correct, injectors may become clogged and the DEF will not work properly. The DEF-CHEK is a cost-effective tool to test DEF and help prevent costly repairs.

Key Features:

• Tests Urea Concentrate of Diesel Exhaust Fluid
• Temperature compensating discs test DEF hot or cold
• Easy-to-read discs are magnified by convex design of the clear SAN plastic barrel
• One-piece bulb and neoprene dip tube

Applications:

• Diesel Exhaust Fluid

Benefits:

• Prevents costly repairs
• Cost-effective
• Accurate at all temperatures
• Easy-to-use