Share:


CUSTOM Black ball heat index meter HI-302BB

Specifications

SKU: CUSTOM Black ball heat index meter HI-302BB

Product overview

[Measurement item] Heatstroke index
[Measurement items] Temperature, semiconductor sensor
[Measurement items] Temperature, thermistorblack bulb temperature
[Measurement item] Humidity
[Function] Heatstroke danger level alarm
[Features] Hook hole

A black ball heat index meter that complies with JIS B 7922 (2017 Class 2).

  • 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.
  • The volume and timing of the WBGT danger level alarm can be set as desired.

Part names

HI-302BB parts names
  • ①Black ball club
  • ②Display section
  • ③Power button
  • ④▲ button
  • ⑤▼ button
  • ⑥Alarm lamp
  • ⑦Ventilation hole
  • 8. Hook hole for wall hanging (pull up when in use)
  • ⑨Belt hook hole
  • ⑩ Battery compartment cover
  • ⑪Tripod mounting hole

360° rotating image

Clicking on the image will open a new window.

HI-302BB 360-degree rotating image
▲Back to top of page

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℃
▲Back to top of page

specification

Electrical Performance

JIS B 7922 accuracy classification Class 2
  temperature Relative humidity black bulb temperature
sensor semiconductor sensor semiconductor sensor
  • thermistor
  Measurement range resolution Measurement accuracy
WBGT index 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 20 seconds
WBGT mode IN (indoor)/OUT (outdoor)
Alarm volume Three-level adjustment: Hi=70 dB, Lo=60 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 Approx. W 59 x H 117 x D 45 mm
weight Approximately 95 g (including batteries)
power supply 2 x AAA batteries
accessories Instruction manual (with warranty), belt, 2 AAA batteries
proofreading Possible (temperature, relative humidity)
JAN 4983621300307
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.


 Inquiry - CUSTOM Black ball heat index meter HI-302BB