STP A/C Pro™ R-134a Professional Digital Gauge & Hose

Seems good, bought this to check and fill a/c but with a car scanner found my high pressure sensor failed so no chance of using, but might need in the near future.

Make sure you follow the steps carefully. When refilling, occasionally shaking and inverting the bottle is essential. I’ve a few cars so being able to use it multiple times is really good value.

I connected to the top up freon(the 20 pounds one ) the freon is not going to the system is not coming out when i pull the trigger unfortunately Waste of money

Purchased as it had a digital readout. Included leaflet provides clear instructions on how to use. Easy to connect and disconnect. Unfortunately if you have a non normal reading (potentially indicated as an excessive pressure reading) the problem can't be diagnosed with just the low pressure side gauge on its own, you need the high pressure reading as well. Also the compressor needs to be running (compressor clutch engaged) to provide proper readings so before purchase check this component is functioning.

This is a really good tool for filling up your air con very accurate readings don't get a cheap one use this one its digital read out and it can be kept for everything you need it to give a nice cool air con

Seems to be letting the gas escape from the trigger. No way of contacting to get a replacement. Ended up wasting a bottle worth £69

Easy to use and great item

Unfortunately it wouldn't pierce the cans I bought with it going to see if I can have a refund sad thing is it looks so easy to use too