Features
Klein Tools CL490 Dual Display Clamp Meter delivers accurate measurements with secondary display for easier readability in tight spaces. From AC/DC current, voltage, resistance, continuity, frequency,and capacitance, all with True RMS precision. It features diode testing and temperature is taken via thermocouple. Features NCV detection with escalating audio-visual alert. The backlit, hi-viz display and lighted dial ensure visibility in any lighting.
Klein Tools CL490 400A AC/DC Dual-Display Auto-Ranging Digital Clamp Meter
Auto Ranging: Yes
TRMS: Yes
DC Polarity Indicator: Yes
DC Micro-Amp: 200µA
Accuracy: ± (% of Reading + # of Least Significant Digits) Refer to Manual for Accuracy Depending on Active Function Selection Values Stated at 65° to 83°F (18° to 28°C)

Klein Tools is the result of one of those “happy accidents” that turn out to be revolutionary. Klein Tools famously got their start in 1857 when a linesman came to founder Matthias Klein to repair his broken pliers. Klein replaced the broken half and when the old half of the tool broke too, Klein forged a replacement for that, thus making the first Klein Linesman pliers. Since these humble beginnings, Klein Tools has grown and become one of the largest American made toolmakers and they’re a brand used by tradesmen, linesman and electricians all across America.