General Tools and Instruments HT50 v.1 - Manual (Page 20)

IR Temperature ±0.2°F (0.1°C)
Measurement Resolution
Distance-to-Spot (D:S) Ratio 2:1
Emissivity 0.95 (fixed)
Internal Storage Capacity 8,000 pairs of RH/Temp
readings or 5000 sets of
ambient temperature,
humidity and IR (surface)
temperature readings
Display 3-1/2-digit LCD with
60 second auto power off
Temperature Response Time 0.5 seconds
Humidity Response Time 5 seconds
Interface USB 1.0/2.0
Length of USB Extension Cable 7.9 in. (200mm)
Dimensions 4.92 x 1.69 x 0.94 in.
(125 x 43 x 24 mm)
Weight <7 oz. (<200g)
Power Source 3.6V non-rechargeable
(1/2 AA) 1200mAh
Lithium-ion battery
Current Consumption 1mA (laser off);
<20mA (laser on)
Battery Life (typical) 1 year
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