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High-Accuracy Digital Contact SensorGT2 series

Sensor Head, Air Cylinder Model



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Detection system

Quartz glass scale, CMOS image sensor projection system, Absolute type (without tracking error)

Measuring range

32 mm 1.26"


0.5 μm 0.02 Mil

Indicated accuracy

3 µm 0.12 Mil (p-p)*1

Measuring force

Downward mounting

2.1 N*2

Side mounting

1.8 N*2

Upward mounting

1.5 N*2

Sampling cycle

1 ms

Operation indicator light

2-color LED (red, green)

Environmental resistance

Enclosure rating


Pressure resistance

1 MPa

Applied pressure range

0.25 to 0.5 MPa

Ambient temperature

0 to +55 °C 32 to 131 °F (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z directions*4


Main body

Main body case: Zinc die-casting; Cylinder part: Aluminium alloy;
Air joint resin part: Polyacetal; Air joint metal part: Brass nickel plating; Indicator: Polyarylate

Dust boot



TYPE304, 440C Stainless steel*5

Sensor head cable

Optional (connect to the M8 connector)


Approx. 340 g (excluding cable)

*1 Value when the ambient temperature is 20 °C 68 °F.
*2 Value at center of measuring range. Please note that the measurement force changes depending on the installation state of the dust boots.
*3 Make sure the air tube is connected to the air exhaust joint and that no foreign materials enter inside from the joint.
*4 In the case where a mounting bracket D is used with GT2-A32 and GT2-A50, the double amplitude becomes 0.75 mm 0.03".
*5 The contact is included with the sensor.

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Measurement Sensors