Electrical test and measurement equipment reviews.

  Digital Multimeter, Clamp on meter, Oscilloscope, Electronic component testing tools, all measuring equipment for demanding applications of our times:  Switching or Uninterruptible power supply, PV Inverters, VFD motor controllers, industrial electronics repair & HVAC.

Written by Kiriakos A. Triantafillou, Industrial maintenance electrician, Hellas.

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TWINTEX TFG-3620E Review

Twintex Instrument Ltd was established in 1998 as a professional test & measurement instruments manufacturer based in China & Taiwan.

Thanks to Miss Lily Cheung Sales manager, one TFG-3620E arbitrary waveform function generator arrived end of September for a product review.  

The TFG-3600E series are the affordable product range of Twintex, and comes loaded  with most functions, frequency's counter up to 200 MHz & RS-232 communication port


BRYMEN BM189 clamp meter Review

The modern AC/DC True-RMS clamp meters are faster, smarter, compact, practical,

data logging,

VFD filter,

Non-contact voltage detection,

and even more.

The ITTSB will be the first who will evaluate it.

6.000 counts & fast

BM189 Clamp meter
GW Instek GDS-320 Oscilloscope & GDP-040D Review

Oscilloscope & multimeter , touch screen , with option differential probe 600V RMS

In Taitronics 2014 GW Instek walked away with the gold award of innovation due their GDS-200 & GDS-300 series.
Today ITTSB with pride announcing the product review of GDS-320 that is the leading model regarding bandwidth as Oscilloscope, and also regarding counts as multimeter.  

Sexy & Beyond is the marketing logo of this product series which is correlated with the promotion video of GW Instek about the specific advertising campaign.
ITTSB shown significant interest to receive and evaluate one sample of this new pack of innovation, the main question is how GDS-320 measure-up in applications which an industrial electrician gets involved with?
I like to thanks GW Instek for accepting this challenge regarding the product review, and about donating both equipment GDS-320 and GDP-040P, the second is the differential probe option which offer the ability to GDS-200 & 300 Series about single phase, and phase to phase electrical measurements up to 600V RMS in Oscilloscope mode.
GDS-300 Series is not a usual DSO in a small package, there is one significant amount of software applications inside this equipment which using the hardware as multimeter or as Oscilloscope in many ways, and this makes possible even complex electrical measurements.
GW Instek due these software applications for GDS-300 has the flexibility to expand the potentials regarding new software applications even further.
ITTSB suggested to GW Instek R&D team the creation of another one software application which will expand GDS-300 potentials as Watt meter too.
GDS-320 Oscilloscope Review

ITTSB Mini Articles

My personal viewpoints, comments, News.

28 May 2014

Safe 220V & 380V measurements with a bench top Oscilloscope by using one differential probe.

The Bottom line is that you can not avoid paying the price for a true differential probe if what you have in mind is work instead play.


I am now an 45 years old electrician, and today I am able to see the Mains voltage and measure its and every parameter.

Never thought that my first class oscilloscope with the differential probe hooked up, that has so much to offer.  


   Bench-top Tool Reviews:  PCB Soldering - Desoldering, Battery Maintenance, and more…    


                                       First look of fresh products with innovative features.       

Supacell digital alkaline battery cells review and testing at ITTSB Blog

Supacell is one division of Multibrands, and I wish to thank them for the generous supply of cells of my choice so theses to be tested. Some test results will become available sooner and some others will become available in time.

Sponsored samples: By Multibrands International Limited™


20 May 2015

Hands on to newest generation of Alkaline cells distributed in UK & Internationally

LM Technologies Ltd is a manufacturer of wireless cable replacement product lines, with focus in Bluetooth and Wi-Fi wireless technology.

ITTSB Blog will explore the potentials of those products at converting BRYMEN multimeter & clamp meter Data logging KIT in to wireless.

6 June 2015

LM Technologies Ltd  London/UK accepted the invitation of ITTSB Blog

Hands on to newest Long Range 100m BT2.1 Bluetooth Serial Adapter

LM048 & LM058

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DER EE DE-711 AC/DC     DMM current probe 67/600A, scheduled review 2016

DER EE Electrical since 2013 had in their planning to release DE-711 AC/DC clamp current probe, so to work in combination with DE-208A multimeter.

DE-208A multimeter has been reviewed by ITTSB many months back, and the verdict was very positive.

Pictures from it arrival at ITTSB Forum

DER EE DE-5203 DMM scheduled review 2016

DER EE released end of 2014 in Taitronics two New series of multimeter.

DE-5203 is an 22.000 counts aiming clearly industrial electricians and more specifically applications involving latest electrical motors.

Pictures from it arrival at ITTSB Forum

DER EE DE-5004 , scheduled review 2016

DE-5003 & DE5004 are 2015 released products which combining for a first time worldwide, a multimeter and an LCR bridge in the same package.

Definably DER EE Electrical ltd in Taiwan worth the title, of a company which offers innovation even within 2015.

Pictures from it arrival at ITTSB Forum

BRYMEN BM079 AC/DC clamp meter Review

6.000 counts large LCD / Amp Tip Jaws

BRYMEN did it again.
Latest electronics technology married with extreme innovation, and the outcome is clamp meter capable to compete with most high end 6.000 counts multimeter. BM079 is the top of the iceberg, capable of three phase rotation and Temperature measurement.

BRYMEN BM878 DMM &  insulation resistance scheduled Review in 2016

BRYMEN welcomes 2015 with one additional product Series which was missing from their product line. BM870 Series is the combination of a fully featured multimeter with the needed functionality for insulation measurements. ITTSB will review BM878 model which combines most features for an industrial electrician.
Pictures from it arrival at ITTSB Forum
BM079 Clamp meter

Arbitrary waveform generator

My first FLUKE 87V meter mini adventure.

FLUKE 87V GSM issue

Burn in of OLED's is a known problem


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Mini articles archives


ITTSB Blog old stories


22000 counts with industrial profile

Multimeter with LCR capabilities

Four Industrial handheld multimeter's tested above the 1000 ACV mark.

Monday 1 February 2016

ITTSB Blog up to date this performed many individual reviews of handheld multimeter, this latest benchmark has to do with the performance of four full size multimeter's when them get tested out of their measuring specifications’ that is above the 1000 ACV range.

Few months back I started thinking to build for my lab one amplifier which this in combination with a function generator, it will work as adjustable ACV source …….