Hioki FT3701-20 IR Thermometer 12:1 (Made in China)

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The FT3700 and FT3701 are non-contact thermometers using infrared rays, accurately pinpointing the spot with a two-beam laser marker. The infrared temperature guns identify the surface temperature of an object by measuring the energy level of the infrared rays emitted from the object without physically coming in contact with it.

Key Features

• Pistol design with easy-to-see display
• A full menu of basic measuring functions
• Easily test in difficult locations, moving objects or where there is danger of electric shock

Measurement temperature range

-60.0˚C to 760.0˚C (-76˚F to 1400˚F), 0.1 ˚C resolution


-35.0˚C to -0.1˚C (-31.0˚F to 31.9˚F) : ±10 %rdg. ±2˚C
0.0˚C to 100.0˚C (-32.0˚F to 212.0˚F) : ±2˚C
100.1˚C to 500.0˚C (212.1˚F to 932.0˚F) : ±2% rdg.
Note: -60.0˚C to -35.1˚C (-76.0˚F to -31.1˚F), and over 500.1˚C (932.0˚F), Accuracy not specified

Response time

1 sec (90%)

Measurement wavelength

8 to 14 µm

Thermal emissivity compensation

ε=0.10 to 1.00 (0.01 step)

Measurement field diameter

φ 100 mm at 3000 mm (3.94 in at 9.84 ft)
(Distance : Spot = 30 : 1)


Two-beam laser marker Max 1 mW (class 2), Red


Continuous measurement mode, MAX/ MIN/ DIF (MAX – MIN)/ AVG measurement, Alarm, Backlight, Auto power-off

Power supply

LR03 (AAA) alkaline battery ×2, 150 mVA, Continuous use of 140 hours (With laser marker, backlight and buzzer are OFF)

Dimensions and mass

48 mm (1.89 in) W × 172 mm (6.77 in) H × 119 mm (4.69 in) D, 256 g (9.0 oz), (including batteries)

Included accessories

Instruction manual ×1, LR03 alkaline battery ×2, Carrying case ×1

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