Digital Infrared Temperature Sensor

FT series

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Sensor Head: High temperature model FT-H40K

FT-H40K - Sensor Head: High temperature model

  • CE Marking





High temperature, Mid-range

Rated temperature range

0 to 1350°C 32 to 2462°F*1

Displayable temperature range

-50 to +1400°C -58 to 2552°F

Detecting distance


Measuring distance /
View diameter (example)

100/ø7.5 mm 3.94"/ø0.30"
150/ø6 mm 5.91"/ø0.24"
300/ø11.5 mm 11.81"/ø0.45"


2-point visible laser beam*3

Detecting element


Detecting wavelength

8 to 14 µm


±3°C 5.4°F

Emissivity (ε) correction

0.10 to 1.99 (0.01 step)

Environmental resistance

Ambient temperature

-10 to +55 °C 14 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 axis

Shock resistance

500 m/s2, 10 times in each direction of each of X, Y and Z axis, 60 times in total


Case: Reinforced glass plastic, Infrared collector lens: Germanium, Laser transmitter: Polyarylate
Lens tube: Aluminum, Cable: Vinyl chloride, Mounting bracket: SUS304, Mounting screw: Stainless steel


Mounting bracket


Approx. 150 g

*1 Repeatability is guaranteed within the rated temperature range.
*2 Place at a distance so that object appears 1.5 times larger than the view diameter.
*3 Visible semiconductor laser beam wavelength 655 nm, Class 1 Laser Product (IEC60825-1, FDA (CDRH) Part1040.10). The laser classification for FDA (CDRH) is implemented based on IEC 60825-1 in accordance with the requirements of Laser Notice No.50.

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