High-Accuracy Digital Contact Sensor

GT2 series

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Extension Board for GT2-100N GT2-E3N

GT2-E3N - Extension Board for GT2-100N

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.


  • CE Marking




Mounting type

Installed into GT2-100N/100P (up to 3 boards)


NPN output

Main unit/Expansion unit


Power supply voltage

Supplied from the GT2-100N/100P

Power consumption


Eco half: 4,200 mW or less (140.0 mA or less at 30 V), Eco all: 4,000 mW or less (133.3 mA or less at 30 V)*1

Power saving (Eco)

4,000 mW or less (133.3 mA or less at 30 V)

Display range


Display resolution

Control input

reset/bank input

No-voltage input

Control output


NPN open collector, 40 V 50 mA or less*2, residual voltage 1 V or less

Response time

hsp(3)/5/10/100/500/1,000 ms
(When using GT2-Pxxx, hsp(12)/20/40/400/2,000/4,000 ms)

Environmental resistance

Ambient temperature

-10 to +50 °C

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm, 2 hours in each of the X, Y, and Z directions


Main body case/front cover: polycarbonate (PC), Key top: polyacetal (POM), Front sheet: polyethylene terephthalate (PET)

Power supply / I/O cable

I/O: 30-pin connector (MIL standard)


Approx. 80 g

*1 When the maximum number of sensor heads is connected, and all devices are set to power saving settings
*2 When 2 or more sensor heads are connected, 20 mA or less.

Data Sheet (PDF) Other Models