Your search for the 337 returned the following results:
AC/DC Clamp Meter with backlight (TRMS, 1000AAC/DC, 1000VAC, Continuity, Frequency, MIN/MAX, mV DC) and up to 2500A AC with the included 18" iFlex flexible current probe.
Discontinued!
                This product has been discontinued and is no longer available.
                
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True RMS, 999A AC/DC, 600V AC/DC, Continuity, Frequency, MIN/MAX.
Discontinued!
                This product has been discontinued and is no longer available.
                
                    Click here for the direct replacement.