Review on 🧪 Dr Meter 4 Digital Multifunctional Laboratory Switch by Sri Mims

Connected to my DMM to test performance and accuracy. Both voltage (30V) and current (10A) are as advertised and match my DMM to within 1 or 2 counts of the last digit. It's a switching power supply, so it's pretty light. Note that the negative comes with a shorting bar connected to ground - flip that out before you forget and blow up something that has a different ground. CC (Current Control) point until it's already supplying power - it may be too late if you forget to set it before turning it on. still too rough. But if you really need that last 10mV or 10mA, you should still look for a power supply for a few hundred bucks. Definitely better than my old 30 year old hand built linear source for the price!