You know when something is made compact and strong and just seems durable? Well, that's such a scale. I charge AC for myself and friends and if you are charging AC the best way to do it is to add the gas by weight not psi. I was really pleasantly surprised at how beautiful the 300L scale is. It's not as big as I imagined, but still big enough to do whatever I need it for. The build quality is excellent and feels very solid, the case is beautifully designed and is very compact and easy to carry. The controls are very good, they are intuitive and easy to use. The main thing is that they are very accurate, I tested them on a medical scale with some known scales and they almost exactly matched the scales. empty, so now I know how much gas is left. The scale is accurate enough to weigh mixtures of chemicals and I have found it very useful. Overall, this is a must-have tool when working with HVAC, but it's also a pretty good scale for any purpose.
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