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Used Working EXTECH Instruments The Oyster Economy pH Meter Analytics Testing$48.80
Used Working EXTECH Instruments PHOTO/CONTACT TACHOMETER$268.80
Extech Programmable DC Power Supply Model 382280 - Used - Working$250.00
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GENUINE Extech 31 EasyView Light Meter w/ case TESTED ... WORKING$60.00
Extech LT300 Digital Light Meter Lux Fc Tester Manual Case TESTED Working$60.00
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TESTED WORKING EXTECH PSYCHROMETER RH300 - $39.99As an eBay Partner, userbars.org may earn a commission from qualifying purchases.