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BenQ T420 42" Interactive Flat Panel- Refurbished

SKU-T420-002 Refurbished

Model Highlights

BenQ T420 combines the power of touch technology and multimedia connectivity to maximize the learning experience of all types of learners.

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Interactive displays have become one of the most powerful teaching tools today, replacing traditional classroom instructions with a new style of learning that's research-proven to enhance academic performances, collaborative learning and team building. A perfect solution for e-classrooms, the BenQ Interactive Flat Panel T420 combines the power of touch technology and multimedia connectivity to maximize the learning experience of all types of learners. Designed with safety and flexibility in mind, the T420 is easy and simple to install in any classroom setting using a VESA wall mount.

Optical Sensing Touch Technology


Built with the Optical Sensing Touch technology, the T420 allows you to control your computer directly by touching the screen. It's faster, easier and far more precise when all you need to do is point and touch with the tip of your finger. Connect your computer to the T420 with a USB cable to get started!

Optical Dual Touch Technology


Pair the T420 with Windows 7 and watch the Optical Dual Touch Technology works its magic turning the displayed image into a multi-touch screen. Teachers can invite two students to come up to the board for a quick one-on-one contest.

Ambient Light Sensor


The T420 is built with an ambient light sensor to detect the amount of ambient lighting in its surrounding and adjust the display setting accordingly without user intervention. This means teachers and students can always enjoy optimal picture quality in class.

Integrated Speaker


To help teachers enrich their class with multimedia learning resources, BenQ has built 12W speakers into the T420. The use of videos, music and sound effects make every lesson more engaging and effective.


Light Source CCFL
LCD Size 42”
Resolution FHD 1920 x 1080 (pixels)
Brightness (typ.)/(min) 440 nits (typ.)
Contrast Ratio (typ.) 1500:1 (typ.)
Response Time (ms) 5ms (typ.)
Frame Rate 60Hz
Viewing Angle 178 degree (H) / 178 degree (V)
Panel Bit (8 or 10) 8 bits + FRC
Aspect Ratio 16:09
Color Gamut (x% NTSC) 72%
Voltage 100 V ~ 240 V, 50/60Hz
Maximun (Watt) <210W
Standby (Watt) <0.5W
Technology Optical Dual Touches (for Win7 only)
Resolution (points area function) 32767 x 32767
Capacity 2 simultaneous touch
Touch Output USB 2.0
OS Supported Single touch for Windows XP, Vista, Mac
Dual touch for Windows 7
Accuracy +/- 5mm over 95% touchable area
Audio W (Amp) 12W x 2
Internal Speaker 12W x 2
I/O Connection
Line in (3.5mm) O
Power (AC) Input/Output O / O
VGA Input/Output O / O
DVI Input/Output O / X
HDMI Input/Output O / X
Composite Video In/Out (BNC) O / O
Component In (YPbPr, RCA) O (YPbPr, RCA)
Audio Output (L/R, RCA) VGA+DVI+Composite+SV+Component: RCA
External Speaker Out (L/R) O
Audio Input (L/R) VGA+DVI: 3.5mm
Composite+SV+Component: RCA
RS232 Input/Output O / O
S-Video In/Out O
DisplayPort Input x
RJ45 Port x
Weight (without packing / with packing) 30.5 / 32.5 kg
Dimension (WxHxD) 992 x 585 x 128.9 mm
Bezel Width (T/B/L/R) 29.3 x 29.3 x 29.3 x 29.3 mm
Wall Mounting 4 Holes (400 x 200mm)
Sharpness Enhancement O
Proof of Image Retention O
Diming Control (DCR) O
Picture in Picture (PIP) O
De-Interlacing / Comb Filter O
10 Bit Color processing O
Build-in Video Wall Support O
Scheduling O
Ambient Light Sensor O
Total turn-on time O
Diagnostic DC voltage (12v/5v) O
Internal Temperature Sensor O