To say it straight away: Of course, can be achieved with this device no exact measurements - that makes the rough indication but already suggests. I have this unit concerned only for domestic use to test batteries lying around out can if you do not have enough voltage or can be disposed of. And this is the purpose of this device wholeheartedly. Also watch batteries (button cells) can be measured with it (this the lower display can be read). It is also interesting to test newly acquired Cheap batteries with it. In most cases, it is found that they are not even invited to the half and why it is worthwhile to spend a little more money on batteries. I have had this experience with a 10er Blister button cells, then the seller Must, who has refunded me then the purchase price. Nevertheless, the batteries I could use as clocks require very little power and also run with an almost empty battery for some time - you have so often just change the battery. So my Fatit: Highly recommended for the simple testing batteries thoroughly, so five stars. However, if you want to achieve more accurate readings, should establish a digital meter or a voltmeter prefer.
