FIELDPIECE - SC640 - True RMS Clamp Meter with Swivel AAC Clamp HeadFIELDPIECE SC640 True RMS Clamp Meter with Swivel AAC Clamp Head SC640 The SC640 Swivel Clamp Meter comes packed with HVAC R measurement abilities needed for day to day testing, including a host of safety features like a high voltage LED and beeper, a continuity warning, push button non contact voltage (NCV), a lead holder with detachable leads, and alligator probe tips for easy one handed testing. Having temperature, capacitance, and microamps DC for