Blue and Good

Looking for an easy to acting voltmeter I came across this super cool part. Small housing, supply voltage is obtained from the measured voltage which the display but hardly falsified - safe for high-precision measurements that's probably nothing, but for the knowledge of the level of the applied voltage, it is just great. The Mini voltmeter comes in three versions: 3-10V, 3-17V and 3-30V it reported at least one product sticker on the packaging bag. The shipment is delayed somewhat because the parts are shipped directly from China - this one is but with something really good on the road more than a week delivery time.
All in all it's a great part for so little - like going to produce one wonders there.
Clear purchase and use recommendation.
The Reinhold