I bought this because I thought I lost my first Empire level. It turned out to be under the seat of my jeep. My first realm level was transferred to me. The thing went through hell and never lost a beat or lost magnetism. These spirit levels are extremely durable and are ideal for Mitsubishi indoor unit base plates. I used my old level every day for 3 years. When I found my old one, I gave it to another inexperienced technician again. Their beauty is that they are accurate, elegant, cheap and offer years of reliability. I don't carry any layers other than these in my tool bag. Get it from a Licensed Electrician, HVAC/R Project Manager/Maintainer from Maine Limited, the quality of this tool will not disappoint.
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