Elenco Logic Probe Solder Kit [ SOLDERING REQUIRED ]Handy device for inspecting and measuring logic circuits Displays logic levels (high or low); pulses and voltage transients down to 25 nanoseconds Maximum input of 20MHz Large PC board and detailed manual for fast and easy construction SOLDERING REQUIRED ASSEMBLY REQUIRED The LP 525K Logic Probe kit is a convenient and precise instrument for use in the measurement of logic circuits. It displays logic levels (high or low), and voltage transients down