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.