Specifications
Temperature range
ST20 Pro™ -32 to 400°C (-25 to 750°F)
ST30 Pro™ -32 to 545°C (-25 to 950°F)
D : S 12 : 1 (ST30 has 90% encircled energy at the focal point)
Display resolution 0.2°C (0.5°F)
Accuracy For targets:
(assumes ambient Above 23°C (73°F): ±1% of reading or ±1°C (±2°F),
operating temperature whichever is greater
of 23–25°C/73–77°F) -18 to 23°C (0 to 73°F): ±2°C (±3°F)
@ calibration geometry* -26 to -18°C (-15 to 0°F): ±2.5°C (±4°F)
-32 to -26°C (-25 to -15°F): ±3°C (±5°F)
Repeatability ±1°C (±2°F), or ±0.5% of reading, whichever is greater
Response time 500 mSec
Spectral response 8–14 µm
Emissivity pre-set 0.95
Ambient operating range 0 to 50°C (32 to 120°F)
Laser max Laser turns off above 40°C (104°F) ambient temperature
Relative humidity 10–90% RH noncondensing, at < 30°C (86°F) ambient
Storage temperature -20 to 60°C (-13 to 158°F) without battery
Weight/Dimensions 320g (11oz); 200 x 160 x 55 mm (8 x 6 x 2 in)
Power 9V Alkaline or NiCd battery
Typical battery life 10 hours with laser and backlight on
(Alkaline) 40 hours with laser and backlight off
Tripod mount 1/4in 20 UNC threading
*Unit calibrator is 279.4mm (11 in) from the 140mm (5.5 in) 0.95 emissivity backbody.
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