HTC Instruments HD-01 WBGT Heat Stress Meter

Model number
HD-01

Wearable heat stress meter showing WBGT (heat stroke index), air temperature and humidity together, with 4-level danger indicator and adjustable buzzer. Indoor and outdoor modes.

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Key features

  • WBGT (heat stroke index), air temperature and humidity on one display
  • Black ball (globe) temperature
  • Worn on the arm with an adjustable strap
  • Indoor and outdoor modes
  • 4-level danger indicator
  • Programmable buzzer and red LED warning
  • Alarm volume 75 dB / 65 dB / mute
  • New reading every 20 seconds
  • WBGT as suggested by ISO 7243
  • Not affected by body temperature when worn

Specifications

Air temperature
Range0 – 50 °C (32 – 122 °F)
Resolution0.1 °C / 0.1 °F
Accuracy20 – 40 °C / 68 – 104 °F: ±0.6 °C / 1.1 °F; elsewhere ±1.0 °C / 1.8 °F
Black ball temperature (TG)
Range0 – 80 °C (32 – 176 °F)
Resolution0.1 °C / 0.1 °F
Accuracy20 – 60 °C / 68 – 140 °F: ±0.6 °C / 1.1 °F; elsewhere ±1.0 °C / 1.8 °F
Relative humidity
Range20 – 90% RH
Resolution0.1% RH
Accuracy30 – 80% RH: ±5% RH; elsewhere ±10.0% RH
Heat stroke index (WBGT)
Range0 – 50 °C (32 – 122 °F)
Resolution0.1 °C / 0.1 °F
ModesIN (indoor), OUT (outdoor)
General
SensorsDigital sensors for temperature and humidity; thermal sensor for black ball temperature
UpdateOnce every 20 seconds
Battery lifeAbout 6 months
PowerAAA 1.5 V × 2
DimensionsH 117 × W 59 × D 45 mm
WeightApprox. 95 g including battery
AccessoriesManual and battery

Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.