Just happened to be in Radio Shack today. I wanted a current measuring digital volt meter dedicated to the boat--and the "True RMS clamp on AC/DC mulitmeter is on sale for $35. (Normally about $70)--and this seems to be a fairly good unit, measures temp (with the included probe from -4F to +1400F. HZ 4-10-40-400 ranges; Ohms 400 to 40M, Volts AC/DC 400 mv to 600 V, Current: ranges 40 400 and 800 amps, capacitance 100uF to 4nF.