Product works but seems expensive to you for what you get. The device is made entirely of plastic and the probes are too short for comfortable use. Also, the meter does not have its own power supply, but uses the stray energy of the battery under test to power itself. This means that if the battery you're testing is too weak, you can't see exactly how bad it is because the meter itself won't turn on. All in all, while it does what it says on the tin, the feature set is poor for the price I paid ($30), so I'm returning it. I would rate it around a $15 tool.
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