What is low Z on multimeter?

What is low Z on multimeter? Dual impedance digital multimeters have feature to control the input impedance of the multimeter. LoZ stands for Low Impedance (Z). This feature presents a low impedance input to the circuit under test. A typical digital multimeter has typically around 10 megaohms input impedance, which loads the circuit being measured

MUSTOOL MT007 Pro-EN True RMS multimeter review

I have wanted for some time multimeter display to be as close as possible to the measurement point. MUSTOOL MT007 Pro-EN True RMS Digital Multimeter + Voltage Test Pen +Phase Sequences Meter 3 In 1 Color Screen Voice Broadcast is a nice and comfortable tester tool solves that! I find this multimeter very useful to

Biltema 6-in-1 multimeter review

Introduction My trusty MS8209 multimeter failed. It was the second same type multimeter that failed for me. Annoying, but not that bad that both of those multimeters had both lasted around 10 years or more for me. I needed to get a new multimeter. I wanted a multimeter with the same environmental measurement ranges as

MS8209 failed

I accidentially killed my favorite multimeter that had served me well for a long time. I was verifying another multimeter by comparing it’s reading to measurement made by this meter (that was checked to be accurate with a calibrator in 2020). My meter just went dead. New battery did not help. Any repair tips or

Tektronix TDS 220 Oscilloscope

The Tektronix TDS220 is a portable two-channel digital scope with 1 GS/s sampling rate and 100 MHz bandwidth. This is part of TDS200 oscilloscope series, that was released in 1997. Sister models include TDS210 (60 MHz dual-channel) and TDS224 (100 MHz quad-channel). Tektronix TDS 210 and TDS 220 Digital Real-Time oscilloscopes offered at them time

HP 54645D 100-MHz Mixed Signal Oscilloscope

I got an old HP mixed signal oscilloscope HP54645D. This is over 20 years old test instrument with 7″ CRT display. The 54645D is a 100 MHz, 2+16 channel Mixed Signal Oscilloscope from Agilent. Measure voltage or current signals over time in an electronic circuit or component to display amplitude, frequency, rise time, etc. Applications

Oscilloscope History and Milestones

Oscilloscope History and Milestones Oscilloscopes have been invented in the 1920s. Up to now this instrument encountered many innovations. Today the main players are Keysight, Tektronix and Teledyne LeCroy. Read more at:

Tektronix 2235 oscilloscope

The Tektronix 2235 is a 100 MHz dual-trace, dual-timebase portable scope. Tektronix 2235 has two channels and delayed sweep. This is still a pretty decent analogue oscilloscope (if you are looking for an analogue oscilloscope) with Large, Bright CRT screen. This oscilloscope has the U shaped handle that has detents which allow it to double


GeoGebra (a portmanteau of geometry and algebra) is an interactive geometry, algebra, statistics and calculus application, intended for learning and teaching mathematics and science from primary school to university level. It is nice that it works on your browser without installation using multiple languages including Finnish. That’s the way I tested it by going to

Wire strippers

A wire stripper is used in removing insulation from around a wire or cable. Sure, you can do this with a pair of scissors, wire cutters or even a utility knife, but using a tool specifically designed for this purpose makes life easier if you work with wires often. Here are three wire strippers I