Accurately measures the strength of urea concentration in DEF (Diesel Exhaust Fluid)/AdBlue® solution. Easy to use AdBlue® tester, simply squeeze the bulb of the syphon tube and insert the tube into the DEF / AdBlue® solution. Then slowly release the bulb and draw off enough liquid to reach the line marked on the tube. The number of floating discs indicate the urea concentration. Once used wash and flush the tester with water. For testing, at hot or cold temperatures the 740mm extra long hose is designed for tanks with filler necks.

We aim to deliver all in stock orders within the displayed time frame above.

If you'd like to check in on the status of your order or need some assistance regarding a future order, please get in touch. Click here to see our full Delivery Information.

We have a 60 day returns policy if you change your mind.

Simply send your order back to us in its original packaging within 60 days of delivery if you wish to return an item for a full refund. *T&C Apply

Click here to read our full Cancellation & Returns Policy

Opening Times

Monday - Friday:  8.30am - 4pm

Saturday - 9am - 3pm

Sunday - 9am - 3pm 

25 Rothersthorpe Crescent

Rothersthorpe Avenue Industrial Estate

Northampton

NN4 8JD

Email : Sales@ukb4c.com