High-Accuracy Digital Contact SensorGT2 series


Sensor head: Short-range pencil type


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Detection system

Differential transformer

Measuring range

1 mm*2

Operating range

2 mm*2


0.1 µm

Indicated accuracy

1 µm (P-P)*3*4

Measuring force

Downward mounting

1.12 N*5

Side mounting

1.1 N*5

Upward mounting

1.08 N*5

Sampling cycle

1 ms

Mechanical response

40 Hz*4

Operation indicator light

2-colour LED (red, green)


Enclosure rating

IP67G(JIS)*6 IP67(IEC)

Ambient temperature

-10 to +55°C (No freezing)

Relative humidity

10 to 85% RH (No condensation)


10 to 55 Hz Double amplitude 1.5 mm in the X, Y, Z axis directions respectively, 2 hours

Impact resistance

1000 m/s2(IEC60068-2-27)


Main body

Main body case: SUS440C,
Sensor head-relay connector cable: PUR,
Relay amplifier: PPSU

Dust boot



SUS304, cemented tungsten carbide*7

Sensor head cable

Optional (connect to relay connector)


Approx. 30 g (not including cable)*8

*1 Note: You may not be able to connect the sensor head to the amplifier unit depending on when the amplifier unit was purchased. For details, contact your local sales office.
*2 The measuring range represents the range at which measured values can be displayed. The operating range is the actual movable range of the spindle.
*3 Within ±0.15 mm from the centre of the measuring range, the width for any 0.1 mm is 1 µm. The entire area is 2 µm.
The linearity for the entire measuring range is ±0.15% of F.S. (F.S.: 1 mm)
*4 Value when the ambient temperature is 20°C.
*5 Representative value at the centre of the measuring range. Please note that the measuring force varies depending on the installation orientation of the dust boot.
*6 When an M8 oil-resistant cable (GT2-CHP2M/CHP5M/CHP10M) is used for the sensor head cable.
*7 Contacts are available as options sold separately.
*8 Including the relay connector.

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