The AEMC MR series AC/DC Probes are professional AC/DC current probes designed to extend current measuring capabilities of DMMs, oscilloscopes and other instruments. They are built to the latest safety and performance standards, including the CE Mark and UL approval. Two different hook-shaped jaws are offered, both permitting the user to "pry" or "hook" onto cables (will accept 2 x 500MCM) or even onto small bus bars. The MR series probes use hall effect technology and measure AC and DC current. The electronics and batteries are self-contained in the handles. The output of the AC/DC probes is 1mV/A and 10mV/A. The model MR561 measures to 1000AAC/1500AAC. The model MR461 has two ranges and an auto-zero push button (patent pending) for quick DC zeroing. There is no output filtering - true RMS with DC component measure- ments are possible. Phase shift is excellent, making the MR series of current probes well suited for power and power quality applications. The model MR561 is designed for oscilloscopes, waveform displaying instruments and other frequency sensitive displaying instruments with BNC inputs. Measurement range of 400AAC/600ADC. Measurement range of 1000AAC/1500ADC. Double Insulation. CE mark. Applications: DC motors, batteries, automobile engine testing, power measuring quality analysis, power load monitoring. 40AAC/60ADC and 400AAC/600ADC Nominal range. 0.2 to 600A Measurement range. 40A-10mV/A, 400A-1mV/A Output signal. 1000AAC and 2000ADC continuous up to 1kHz Overload DC to 10kHz at -3dB Frequency range. 600Vrms Working/Common mode voltage. 9V Alkaline battery (approx. 50 hours life). 6' BNC output termination. Operating temperature: 14 degree to 131 degree F. Storage temperature: -40 degree to 176 degree F. 1.2" Jaw opening. Dimensions: 8-51/64" width by 3-11/16" height by 1-93/128" depth. Weight 15oz.