• 1994

DONG-DO ELECTRONICS. is founded.

Release ML-8P, 8 channel electronic micrometer.

Launch computer interface electronic micrometer ( Parallel ISA CARD Type )

New soft for statistical electronic micrometer, Runout, Verticality inspecter.

X-Y Robot is developed and released.

• 1995

Flatness and perpendicularity system for VTR Deck is developed and released.

Audio and VTR inspector with vision system is developed.

( review arm perpendicularity inspecting and hole check.)

Intelligent OP BOX ( OPT-01H ) is developed.

• 1996

LVDT / HBT sensor developing is started.

RTGAP, DRUMBASE, HDD inspecting systems are developed.

• 1997

LVDT / HBT sensor is released. (DP-S4, DP-S4V)

RRO inspecting system is developed.

CDROM, CD-RW Deck inspecting system is developed.

Intelligent Graphical OP BOX is developed.( OPG-02H,-03H )

• 1998

Long Stroke LVDT/HBT sensors are developed( DP-10, DP-10V, DP-20 )

CDROM, CR-RW, DVD Skew adjusting system is developed.

• 1999

Air unit with HBT sensor is developed. ( DD-AE )

Air Type LVDT(HBT) sensor is developed ( DP-10A )

LED Column type electronic micrometers are developed.(ML-2PCG, etc.)

Leak checking machine is developed.

• 2000

CD-ROM, CD-RW Mech Skew auto adjusting system is developed.

DTV, disk for automobile inspecting system, is developed.

To be DONG-DO ELECTRONICS. CO., LTD.

Non-contact type eddy current sensor is developed.

• 2001

6.4” TFT Color LCD electronic micrometer is developed.

DVD-ROM Mech Skew auto adjusting machine is developed.

An auto skew adjusting machine by Jitter value of the Audio CDP.

PCI Interface CARD for PC type electronic micrometer and Windows98 software are developed.

Digimatic Processor is developed.

Digiforce system with a wide black&white LCD

• 2002

Non-contact type laser displacement measuring sensor is developed

Auto skew adjusting for DVD-ROM with vision system is developed.

A light skew adjusting machine with probe sensor is developed.

Color Type digiforce is developed.

• 2003

96x96mm panel type electronic micrometer is developed.(ML-1P)

6 pi HBT sensor is developed.( DP-3M, DP-3MV )

• 2004

7” Wide TFT LCD electronic micrometer is developed.

1~4 channels compact Type Column electronic micrometer is developed.

Mini Air Unit is developed ( A/E Unit )

STN , TFT Color LCD panel type electronic micrometer is developed.

4.5 pi, 6 pi HBT sensors are developed ( DP-2M, DP-2MV, DP-3M )

2005 – 2 axis digital electronic inclinometer is developed( IM-2DA, LV-2M )

• 2006

Portable size electronic micrometer is developed. (ML-1M)

3.9” STN LCD electronic micrometer is developed. (ML-4PW)

Sensor type 2-axis digital electronic inclinometer is developed.(IM-S43)

To obtain the CE certification SMPS free voltage power is used.

• 2007

Laser medical machine is developed. (for skin and scarp)

Laser distance measuring machine is developed.

Electronic micrometer for linear gauge(Scaler) is developed.

Obtain CE certifications ( ML-4P Series, ML-16P Series )

• 2010

Profi-Bus Type electronic micrometer is developed.

USB Memory function is added for ML-16PT

Tone wheel measuring electronic micrometer is developed.

15mm HBT is developed.(DP-15)

• 2011

3.5” TFT Color panel type(96×96) electronic micrometer is developed.(ML-CP)

Linear Gauge is developed.( 30mm, 50mm )

CC-Link Type electronic micrometer is developed.

Concentricity measuring electronic micrometer is developed.

• 2012

2.8” TFT Color Touch Type inclinometer is developed. ( IM-2DT )

3.5” TFT Color Touch & panel type(96×96) electronic micrometer is developed.(ML-CP)

96×48 2.8” Color Touch & panel type mini electronic micrometer is developed.(ML-SP)

7″ TFT Color Touch & panel type mini electronic micrometer is developed.(ML-LP)

• 2013

Wireless(bluetooth) bore gauge is developed. (B-100)

Micro SD card save function is added on the micrometer.(For ML-LP)

Separated type HBT sensor is developed.(DP-SC2)

• 2014

2mm short type HBT sensor is developed.(DP-S2, DP-S2V)

Digiforce, run-out

3.5” TFT Color Touch & panel type(96×96) electronic micrometer is developed.(ML-CP)

96×48 2.8” Color Touch & panel type mini electronic micrometer is developed.(ML-SP)

Micro SD card save function is added on the micrometer

• 2015

4.2” TFT Color Touch & panel type electronic micrometer is developed.(ML-MP)

Pneumatic type probes, DP-S2A, DP-S4A, DP-10A, are developed.

• 2016

Absolute type digital gauge is developed.(DL-15)

• 2020

8mm diameter pencil type absolute digital gauge is developed.(DL-15S)

• 2021

Company name change : DONG-DO ELECTRONICS CO., LTD to DONGDO EI CO., LTD