TM-288 Heat Stroke Index Meter Indoor / Outdoor Temperature Measurement WBGT Black-Globe Temp Humidity with Real-time Alarm, Heat Hazard Indicator

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This HEAT STROKE INDEX METER features quick-response with accurate measurement of the effects of high temperature and humidity in human body.

This instrument is ideal for the athletic trainers, military, occupational (Industrial) hygienists, outdoor workers, the sports medicine specialists, and for all individual that is concerned with their health when doing some outdoor activities or even in close indoor instances. It's designed according to the regulations standard.


  • Measure the WBGT, black-globe temp. (TG), Air temp. (TA), humidity (%RH)
  • Three Applications: Arm band (wearable), Tripod, and Hanging
  • High-sensitive capacitive humidity sensor and bandgap temperature sensor
  • Low battery indicator
  • With real-time alarm
  • Heat hazard level indicator
  • Selectable °C/°F temperature unit
  • Selectable outdoor or indoor measurement mode
  • Compliance: JIS B 7922 Level 2


  • Wet Bulb Globe Temperature (WBGT)
    • Measuring Range: 0~50°C/32~122°F
    • Resolution: 0.1
    • Tolerance range (15~40°C): ±2.0°C/ ±3.6°F
  • Air Temperature (TA)
    • Measuring Range: 0~50°C/32~122°F
    • Resolution: 0.1
    • Tolerance range (15~40°C): ±0.8°C/±1.5°F
  • Black-globe Temperature (TG)
    • Measuring Rnge: 0~80°C/32~176°F
    • Resolution: 0.1
    • Tolerance range (15~40°C): ±0.6°C/±1.1°F
  • Humidity (%RH)
    • Measuring Range: 20~80%RH
    • Resolution: 0.1
    • Tolerance @25°C: ±5.0%RH (20%RH~80%RH), ±7.0%RH(<20%RH, >80%RH)
  • Plastic black-globe diameter: Ø40mm
  • Three-stage WBGT selectable alarm: loudness → quiet → mute (buzzer not displayed)
  • Sampling interval: 20 per seconds
  • Dimension: 116 x 60 x 50mm (L x W x H)
  • Weight: 80gms
  • Power: 3V CR2032 x 1
  • Battery life up to about 500 hours (alarm not provided)
  • Operating wind speed: 0.3m/s or above
  • Operating Environment: 0~50°C (32~122°F), <80%RH (No Condensation)
  • Storage Environment: 0~60°C (32~140°F), <70%RH (No Condensation)
  • Display dimension: 41 x 38mm (W x L)

Set Includes:

  • 1 x Heat Stroke Index Meter
  • 1 x CR2032 3V Battery
  • 1 x Fastener for armband with screws
  • 1 x Flexible armband
  • 1 x Carabiner
  • 1 x Key Ring
  • 1 x Silicone Elbow for anti-skid
  • 1 x Screw for silicone elbow
  • English Instruction Manual

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