The device works well (very handy for detecting drain devices) and if I read here and there comments on the difficulty of reading the information, I have not encountered this problem ... except on the mode Employment (of the same type as those you find in a box of aspirin) whose characters are barely 1mm (yes, I measured). The setup is quick (there is also not much to set), but do not forget to open the small cover on the back to remove the protective plastic between two of the three batteries. For the rest: Selecting the double tariff 8 displayed values: current, real power, power factor, line power, line voltage, frequency, total cost, length of service Adjustable overload indication Reset functions ("Clear" and "Master Clear") Input and output via a plug and socket with child protection