Sealey(SEAQF) VSE953 Catalytic Converter Back Pressure Test Kit, Multicoloured

Gauge works as it should but gauge doesn't rest on zero. Works fine for me because I don't need precise measurement. Other thing I found odd is pressure is measured in psi but vacuum is measured in centimeters not inches. An easy conversion so no big deal but would be easier for me if vacuum was measured in inHg.

Great

i bought this product 15th Feb and opened it and had a quick look to see if everything was in the set and all looked ok, i did not actually look at setting on gauge. I opened again today 15th April to use it and observed the gauge was not reading zero obviously it is imperative that a pressure gauge is calibrated correctly. I can only assume that this gauge must have been in a room or environment that was about 1.5 psi above atmospheric pressure when it was calibrated.

If you suspect your Cat is clogged up, get yourself one of these, It saved me time and hundreds of pounds, in my case the silencer was at fault not the Cat, very good tool to have.

Great value! It does exactly what it’s supposed to and saved removing the whole back (of a mid engined car) just to test if the cat was blocked. Very useful tool that seems well built, clear instructions too.

Gauge doesn’t even start at zero. Shocking second item was the same

A good quality basic tester, does exactly what it says on the tin