Ohmmeters; Voltmeters; Electronic devices, namely, handhelds for exchanging data in energy meters or submeters; Electronic instruments, namely, logic analyzers; Fiber optic instruments, namely, optical multimeters; Gas testing instruments; Laboratory apparatus and instruments, namely, pre-packed columns for use in separation and purification; Lasers for measuring purposes; Panel meters, namely, an electronic instrument that displays an input signal in either a digital or analog form; Scientif...