PB Motor TECH 220LBS Electronic Refrigerant Charging Scale with Portable Case, Digital Freon Scale, HVAC Refrigerant Scale for All Refrigerant Recovery Tanks

I installed a mini split air conditioner for my office. I had to add 25 ft of tubing, which required adding 5 Oz of refrigerant. I setvthe Tare weight for the whole container and charged the system until the scale read -5 oz. The scale has resolution to 0.1 oz so it was perfect for the job. I left it in its enclosure and set it on top of the outdoor unit, which had a grooved surface. The enclosure is designed to not interfere with the scale if it is left in the enclosure, which is a nice feature. The scale is easy to use. I could cycle through all the different units of measure, so I didn't have to do any units conversion. I had to buy the equipment I needed for the installation, but still saved a lot of $$$. Now I have the ability to recharge the unit, should I ever need to.

Exceeded expectations

Used it serval times. Does it's job. Wish it came with a battery and would like the latches to be a little beefier.

Great value

I have always filled based on pressure readings (not ideal). This is so much better, and this scale seems to be very accurate and easy to use. Even with small 8oz cans on r1234yf, it was nice to know when I got the full 8oz out. Very happy with this purchase.

I have always used a brand name freon scale that has always been my go to for over 15 years. But this scale is a 1/4 of the price and so far it has been the best investment I have ever made for a set of scales. It is a tad bit heavier but construction is much better so there's that. I would rate this particular scale a full 10 star but I have to settle for a 5 star.

easy to use, tested with known weight, zeroed the scale each time and weight stayed true. Don't use it often but is very handy.

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