Amprobe ACD-16 TRMS Pro 1000A Data-Logging Clamp on Multimeter features are: TRMS and Backlight Screen, Data-logging 5400 points, Optional PC interface capability (RS-232 KIT2. For most applications, the TRMS version of the meter is recommended in order to avoid large measuring errors. If uncertain, always choose TRMS sensing clamp to assure measuring accuracy for all your applications. There are plenty of look-alike clamp multimeters on the market, but professionals choose genuine Amprobe Instruments. It's really all about choices. Amprobe Instruments offers you a full line of Clamp Multimeters (Digital Clamp Meters) for Volts-Amp Resistance, Multimeter, Recording, Power and Power Quality applications. So go with the choice of professionals. Amprobe Instruments famous Red, Rubber, Ribs make it easy to "grab the Amprobe" you need to get the job done right. For most applications, the TRMS version of the meter is recommended in order to avoid large measuring errors. If uncertain, always choose TRMS sensing clamp to assure measuring accuracy for all your applications. The Average Sensing clamps are ONLY accurate for pure, undistorted sine wave signals, and may generate errors over 30% for distorted sine waves. TRMS technology assures accurate measurements, regardless of a distortion of the signal. The distortion of the voltage or current is caused in most cases by "Non-linear" loads for example: Electronics (radios, VCRs, computers, TV sets, etc), Light dimmers, Variable Frequency Drives (VFDs), Adjustable Speed Drives (ASDs), Uninterruptible Power Supplies (UPSs), Fluorescent and energy saving lights and many more. The distorted wave is transmitted across the power lines and it affects all electrical equipment connected to the same system.
Proposition 65 Warning for California Residents: This product can expose you to chemicals including Benzene, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to 
