An OBD2 scanner reads the engine fault codes before you even reach a workshop — Ancel and OBDeleven models either connect to a phone over Bluetooth or work with a screen of their own. The second large group is battery testers, which measure the voltage and cranking current of a 12 V system; the BST600 prints the result out on the spot. There are also combined 2-in-1 devices, inspection cameras and a digital oscilloscope.
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An OBD2 scanner reads the engine fault codes before you even reach a workshop — Ancel and OBDeleven models either connect to a phone over Bluetooth or work with a screen of their own. The second large group is battery testers, which measure the voltage and cranking current of a 12 V system; the BST600 prints the result out on the spot. There are also combined 2-in-1 devices, inspection cameras and a digital oscilloscope.