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Bit late to the fray here. These cheap Chinese Arduino based testers; great for what they are - ie. cheap - but accuracy testing passives is not great (one of my 2 tested worse than 20% on R, C and L testing). Might be possible to calibrate, but who knows how? The Peak Atlas testers are nowhere near as cheap but quite accurate and doesn't misidentify 3-lead semis like the Chinese one does. For something cheap ($20) and more useful than you might expect, get a Uni-T UT116C SMD/tweezers meter. Fairly accurate, tests zener diode breakdown voltages, flash LEDs in circuit, single-handed in-circuit voltage measurement.. and great for verifying through-hole and SMD resistor values..
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02-17-2023, 11:53 AM
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