Home / Products / Advanced Panel Meters / Voltage, Frequency & Current Meters Voltage, Frequency & Current Meters Application Current Flow Frequency Power Temperature Voltage Input 0 - 10,000A via CT 0 - 10,000KA via CT 0 - 10V DC 0 - 1V DC 0 - 200uA 0 - 400Hz 0 - 50mA 0 - 50mA DC 0 - 5A Direct 0 - 600V DC/AC (+/-) 2 - 400Hz 50 - 60Hz 0 - 300V AC (L-N) 0 - 600V AC (L-L) 0.001 – 60KHz (NPN, PNP or Push-Pull) Volt Meter A digital volt meter for measuring mains voltage CT Meter A CT amp meter for measuring AC current with an external CT Shunt Meter An shunt amp meter for measuring DC current with an external shunt M2 Meter An all-in-one meter for measuring voltage, current or frequency; 100-240V AC power M1 Meter An all-in-one meter for measuring voltage, current or frequency; 12-24V AC/DC power Frequency Meter A specialized frequency meter for measuring frequency and speed Micro Meter A specialized micro amp meter for measuring DC current in microamps MAX Meter M21 An all-in-one meter for measuring amps, voltage, frequency or power Amp Meter A digital amp meter for measuring direct AC & DC current up to 5A