Not useful in bright sunlight. A neon voltage scale that is bright at low voltage and becomes less bright at higher voltage. It is not possible to read the number directly. In general, this unit is no more functional than a single indicator light, but costs a lot more. Added comments:. The more I use this device, the less I like it. The information does not match. It is difficult to read the maximum voltage. Unusable in bright sunlight. Trouble is, I can't recommend anything better.
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