WBGT SD Card Logger

Wet Bulb Globe Heat Stress Meter SD Card Logger

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Records data onto removable SD Cards 

Reads relative humidity (RH),air temperature (TA),dew point, wet bulb globe temperature (WBGT) and black globe temperature (TG). Also captures sample time and date. Records data onto standard SD memory cards (like a digital camera). When full, simply exchange SD cards for unlimited data storage. The removable SD card is easy to transport and insert into a computer’s memory card slot or SD card reader. Uploads preformatted data to Excel, without the need for additional software and cables. Additional SD cards are readily available in a variety of memory sizes. Features an adjustable WBGT audible alarm, min/max, auto power off, low battery indicator and hold function. This well-made unit is extremely accurate with fast response times, and includes a fold-out tripod and large, easy-to-read backlit LCD. Comes ready to use in a soft carrying case with 6 AA batteries, instruction manual and a SD card. N.I.S.T. traceable certificate of compliance available (for RH & Air Temperature only). 

Globe diameter: 2¾" (70 mm)

Dimensions: 10¾" × 2½" × 1¾" (273 × 64 × 44 mm)

Weight: 14.9 oz (422 g)

WBGTIndoor / Outdoor:
@95%RH -10 to 52°C
(@0% RH -10 to 34°C)

@95% RH 14 to 126°F
(0% RH 14 to 93°F)
±1°C (15 to 59°C) ±1.5°C (Others)
±1.8°F (59 to 138°F) ±2.7°F (Others)
±1.5°C (15 to 56°C) ±2°C (Others)
±2.7°F (59 to 132°F) ±3.6°F (Others)
Air Temperature-0 to 50ºC
32 to 122ºF
(@15 to 40°C) 
± 1.5°F
Globe Temperature-10 to 65°C
14 to 149°F
(@15 to 40°C) 
± 1.1°F
RH5 to 95% RH≥ 70% RH: ± 3% rdg + 1% RH,
<70% RH: ± 3% RH
Dew Point °C-25.3 to 48.9°CThe dew point and wet bulb temperature values are calculated automatically using the humidity/air temperature measurement.
Dew Point °F-13.5 to 120.1°F
Wet Bulb °C@95% RH -10 to 58°C
(@0% RH -10 to 25°C)
Wet Bulb °F@95% RH 14 to 136°F
(@0% RH 14 to 77°F)