I bought this product because its inputs 10A and mA are protected, for its bright keying when measuring connections son in the wrong place for his choice of the right caliber automatically on demand for its display resolution (4000 max) for its large number of calibers and types of possible measures. All this has been found convenient to use. CAUTION male plugs to test leads (special). They do not provide good contact with the metal cylinders into the holes of the meter if you do not take precautions. At the plugs commitment, you have a FIRST POINT DRIVE where the polarizing lights stay on. The contact is random that can be checked on the gauge ohm by contacting the test lead tips. Continue to push STRONGLY to the hilt: LAMPS MUST TURN OFF keying. This is not said in the instructions, so that I almost return the unit.
