This Keysight Agilent HP 3467A Logging Multimeter has all the ability of a standard multimeter and it logs your information on a great little printer.
Set it up to measure what you want, turn everything on and let it present you with a detailed report when you like. It has FOUR channels to do this with. It has a thermometer, math functions and a timer. The timer records on your printer so you'll know exactly when a problem happened. It records the information that you want in the way that you choose.
It prints in Centigrade, Fahrenheit, decibels, Resistance, DC Volts, AC Volts (true RMS). You can float the grounds (all four) if you want to.