380360-NIST / Extech เครื่องวัดความต้านทาน Insulation Tester The Extech 380360 1000V Digital Megohmmeter with Safety Power Lock enables “hands free” operation for 3 minute test.
Extech 380366-NIST Insulation Tester + Datalogger with NIST Certificate, Large dual 4000 count backlit LCD and fast 50 segment analog display, Measure Insulation Resistance to 4000M§Ùwith 1k§Ù resolution and 1mA test ...
Rechargeable battery powered 4-terminal tester with selectable test frequencies, greater measurement sensitivity and attached rod technique and stakeless measurement capability