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Hitachi CM 823 Etplus

Hitachi CM 823 Etplus
alaScore 84

8 reviews

Jan, 2019

alaTest has collected and analyzed 8 reviews of Hitachi CM 823 Etplus. The average rating for this product is 4.4/5, compared to an average rating of 4.3/5 for other products in the same category for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Hitachi CM 823 Etplus is awarded an overall alaScore™ of 84/100 = Very good quality.

Review analysis

(Based on 8 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 8 of 8 Show Reviews: in English

Consumer review ( review summary for Hitachi CM 823 Etplus


alaTest has collected and analyzed 2 user reviews of Hitachi CM 823 Etplus from The average user rating for this product is 5.0/5, compared to an average user rating of 4.2/5 for other products in the same category on

100% of the reviews on give this product a positive rating.

This summary is based on the products: 21IN/20V Crt 21MM 2048X1536 75HZ CM823F21IN/20V Crt 21MM 2048X1536 75HZ CM823F

Jan, 2019

Expert review by (

21IN/19.9V 21mm 1856x1392 72hz Cm827u-511


WHAT'S HOT: The five-year warranty that Hitachi offers matches the longest on our current chart--all the other vendors except Cornerstone offer three years. Part of Hitachi's Super Space Saving line, the CM827 has an 18.5-inch depth, the shortest we've...

Jun, 2002

Expert review by (

21IN/19.9V 22mm 1600x1200 @75hz Cm810u-511 Flat


WHAT'S HOT: The CM810 rendered sharp, easily legible text, particularly on a test screen with multiple font sizes. Compared to some of the other displays, reading small text at 1600 by 1200 resolution on this model was quite easy. Colors also looked...

Jul, 2001

Consumer review (

Hitachi CM823F - Make your friends drool for cheap.


Lowest weight and depth.Longest warranty.Fastest refresh rate.FLAT screen.Easy controls.

Hard to find unless you buy online.

Jan, 2003

Consumer review (

Hitachi CM823F not so hot


I have a 19'' ViewSonic PS790 that I have always been very happy with. However, I've been thinking about moving up to a 21'' flatscreen, and recently I took the plunge. I tried to order the NEC/Mitsubishi 2060u, but when I found out that it was...

Easy and plentiful controls, nice size, sharp text

Not bright enough, unacceptable halo-like effect (see review for explanation)

Nov, 2002

Consumer review (

Hitachi CM823 delivers...almost.


The flat design and Invar Shadow Mask technology of the Hitachi CM823 provide excellent color contrast resulting in vibrant images in any application. The 1200 x 1600 DPI/85 Hz setting allows for optimum image quality and flicker-free computing. The...

Sharp color contrast. Has a wide array of resolutions and refresh rates

Text clarity is below average

Apr, 2002

Consumer review (

Hitachi CM823F - Make your friends drool for cheap.


I also have a Hitachi CM814, a Sony G520, and a Nokia 445Pro. This is my personal opinion.

Lowest weight and depth. Longest warranty. Fastest refresh rate. FLAT screen. Easy controls

Hard to find unless you buy online

Jan, 2002

Product Specifications

Hitachi's new 21" flat-faced monitor utilizes Hitachi's Editors' Choice award-winning ErgoFlat technology. The CM823F features a flat-faced screen for significantly reduced glare and more realistic, vibrant images. Hitachi's ErgoFlat technology is 10% brighter than most competitive products and has significantly better convergence than competitive aperture grill models. The CM823F features high resolutions and refresh rates to satisfy even the most demanding Imaging, CAD/CAM and business professional.

Audio Output

Type: None

Dimensions & Weight


Display (Projector)

Diagonal Size:21in
Diagonal Size (metric):53.3cm
Dot Pitch / Pixel Pitch:0.21mm
Form Factor:Desktop
Interface:VGA (HD-15)
Max Resolution:2046 x 1536


Packaged Quantity:1
Product Line:Hitachi

Input Device

Type: None


Compliant Standards:CE / cUL / DHHS / EN 60950 / EN55022 / EPA Energy Star / FCC Class B certified / ISO 9241 / NEMKO / TCO '99 / TUV / UL / ZH1 618 / TCO 99/cUL / DHHS / EN 60950 / EN 61000-3-2 / EN55022 / EPA Energy Star / FCC Class B certified / ISO 9241 / NEMKO / TCO '99 / UL 1950 / VESA DPMS / ZH1 618 / TCO 99

Service & Support

Type:3 years warranty

System Requirements

OS Required: None

Video Input

Digital Video Standard: None
TV Tuner Presence: No