CUSTOM Heat Index Meter HI-302

A compact heatstroke index meter that can be used indoors.

• You can check the WBGT index, temperature, and humidity at once.
• The heatstroke risk level will be notified by icons and alarms.
• Four installation methods (hook hole, belt loop, tripod mounting hole, tabletop placement)
• *A tripod is not included with the product.
• Comes with a "MAX/MIN memory function" that stores the maximum and minimum measurement values.

Part names

• Display section
• Power button
• ۡ button
• % button
• Alarm lamp
• Ventilation hole
• Hook hole for wall hanging (pull up when in use)
• Belt hook hole
• Battery compartment cover
• Tripod mounting hole

360° rotating image

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What is the heatstroke (WBGT) index?

Heatstroke can occur not only during sports activities but also in everyday life and at work. To prevent heatstroke, WBGT (Wet Bulb Globe Temperature) is used as the "temperature standard," and temperature levels are divided into four levels: "Danger" (over 31°C), "High Alert" (28-31°C), "Caution" (25-28°C), and "Caution" (below 25°C). A black bulb thermometer is typically used to calculate WBGT.

Temperature reference (WBGT)	Guidelines for daily activities to be careful of	Precautions
Danger (above 31°C)	Risks that occur in all daily activities	Elderly people are at high risk of developing the disease even when at rest. Avoid going outside as much as possible and move to a cool room.
High alert (28-31°C)		When going out, avoid the hot sun, and when indoors, be careful of rising room temperatures.
Caution (25-28)	Risks of moderate or higher activity	Take regular, adequate rest breaks when exercising or doing strenuous work.
Caution (below 25°C)	Risks of vigorous daily activities	Generally, the risk is low, but there is a risk of it developing during strenuous exercise or heavy work.

 

• The WBGT here is estimated from the maximum temperature and humidity of the day.
• 28-31 means above 28 and below 31

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specification

Electrical Performance

	Measurement range	resolution	Measurement accuracy
WBGT index (indoor)	0.0 to +50.0°C	0.1	±2.0
Temperature (TA)	0.0 to +50.0°C	0.1	±0.6 (+20.0 to +50.0) ±1.0 (other than above)
Relative humidity	20.0 to 90.0% RH	0.1%RH	±5%RH (+30.0 to +90.0%RH) ±10%RH (other than above)

[WBGT equation] Indoors (no sunlight): WGBT = 0.7WB + 0.3TG, Outdoors (with sunlight): WGBT = 0.7WB + 0.2TG + 0.1TA

General specifications

Measurement interval	Approximately every 15 seconds
Alarm volume	70 dB, OFF
Operating temperature and humidity	0 to +50°C, 10 to 90% RH (no condensation)
Storage temperature and humidity	-10 to +55°C, 10 to 90% RH (no condensation)
size	Body: Approx. W 59× H 78 × D 23 mm
weight	Approximately 80 g (including batteries)
power supply	2 x AAA batteries
accessories	Instruction manual (with warranty), belt, 2 AAA batteries
proofreading	Possible (temperature, relative humidity)
JAN	4983621300314

For safe useThis device is not a product that can completely prevent the onset of heatstroke or colds. The onset of colds and heatstroke is influenced by various factors, such as the temperature, humidity, and radiant heat of the surrounding environment, as well as the individual's age, gender, health condition, and current activity level (exercise, work status, etc.). Please use this product only as a guideline, with a full understanding of these characteristics.
To fully utilize the product's capabilities, use it indoors or outdoors, away from direct sunlight.