this one has option 1 the ultra stable accurate timebase which is a must if youre not going to use an external reference. the stock ones are not very stableI also have one without the opt 1 for 300$ less if you already have an external rubidium source. This unit is fully calibrated and comes with a calibration certificate and sticker
eFiberTools Product ID: Item may require 7 to 14 days lead time. Includes DLS 350, DLS 355 dual laser light sources and RP460-02 optical power meter. Splicer, cleaver, cooling tray, indoor stripper, protector, battery, cooling tray, power cable, AC adapter, electrodes, CD, working table, carrying cas
I. Introduction ETCR3000 Digital Earth Resistance Tester is specially designed and manufactured for field measurement, adopting the latest digital and micro-processing technology, 3-pole or 2-pole method for earth resistance measurement, with a unique function of wir
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