Southwire 21550T clamp meter built-in non-contact voltage detector 400A AC/DC current range CAT III 600V safety rating true RMS accuracy third-hand test probe holder. The Southwire Tools & Equipment 21550T 400A AC/DC Clamp Meter with True RMS offers the features needed for the professional electrician including True RMS accuracy the ability to measure both AC and DC current and a built-in non-contact AC voltage detector. Other features included are REL and max/min functions in addition to standard multimeter functions such as resistance capacitance continuity temperature and diode. This clamp meter also has a third-hand test probe holder and a bright LED worklight. The 21550T is built-to-last and is guaranteed to survive a 6-foot drop. This product ships in approximately 1 days