I don't care about 24 hour clocks. For a small bank, Bluetooth is good. The readings are quite accurate and easy to read. I swapped out the factory wires for random ones. The automatic shutdown is sometimes inconvenient. The brochure says that when the alarm is about to turn off the power, you press the "REL" button to bypass it. The power button is on the back, so auto power can be convenient. Pressing any button on the front panel turns it on. attitude helps. The battery life is over 4 hours and charges quickly. The RMS meter is good too. I was impressed with "AC", it has a frequency meter and a VERY nice capacitance meter function. For the price this is a good buy. I ordered one for my home bank and two more for friends. I really like this little gauge.