Review on Calibrated ITEQ Brake Fluid Tester Pen With 5 LED Indicators For Accurate Testing Of DOT3 And DOT4 Brake Fluids by Larry Cothran

Use this thing every day at work (I am a mechanic) and this thing makes testing brake fluid so easy and it's very accurate. Sometimes I look at fluid and see that it's very dark and assume it's already bad but the tester will come back with only 2% moisture in the fluid meaning the customer can ride out the fluid they have a little longer. Sometimes it's the complete opposite fluid looks great, customer just had it done at a jiffy lube but guess what fluid is at 4% or more moisture due to the fluid most likely being left in a bottle that wasn't fully sealed saving the customers brake system from corroding from the inside out. Literally take 2 seconds to test with this thing to get super accurate readings. I would definitely suggest this to any mechanic or anyone who does their own brake jobs at home