[Compliant with the 2025 mandatory heatstroke prevention measures] In response to the mandatory heatstroke prevention measures that will come into effect on June 1, 2025, risk assessment will be mandatory in work environments with a WBGT of 28 or higher or a temperature of 31°C or higher. This product's ability to directly measure and display WBGT values makes it the ideal choice for smoothly implementing mandatory measures in companies, schools, facilities, and more.
[JIS B 7922:2023 Compliant, Class 2 Accuracy] This product complies with JIS (Japanese Industrial Standards) and has a measurement accuracy equivalent to Class 2. It can be used safely in places where precision is required, such as public facilities and construction sites.
Multifunctional Heatstroke Monitoring: This product comprehensively measures temperature, humidity, and radiant heat through a black ball sensor, and calculates the WBGT value in real time to accurately assess the risk of heatstroke. It is suitable for a variety of environments, including indoors, outdoors, and at work or sports facilities.
[High-precision measurement and reliability] While ordinary thermometers can only measure air temperature, the black globe sensor can also measure radiant heat from sunlight and ground glare. This allows you to accurately grasp the actual heat felt by humans (sensible temperature), enabling reliable heatstroke prevention even outdoors or in places with strong glare.
Flexible Installation and Usage: In addition to the band and carabiner that can be attached to your arm, belt, or bag, it can also be mounted on a tripod or wall. It can be used both indoors and outdoors, both fixed and portable, and can flexibly meet the needs of the field.
[Warning and Safety Notification Function] This product is equipped with an adjustable warning system (loud/quiet/off) that will sound an alarm when there is a high risk of heatstroke and notify workers to take preventive measures. This is an important function to ensure safety.
[Long-life] One CR2032 button battery provides approximately 8 months of operation if used 4 hours a day. It can be used safely for long periods of time, even outdoors or in places without access to a power source.
[Wide range of applications] Can be used in a variety of places, including construction sites, factories, schools, sports facilities, and nursing homes. Effectively supports the prevention of heatstroke during outdoor activities, work sites, and everyday life.
[Ready to use right out of the box with a full set of accessories] In addition to the device itself, the set includes a carabiner, short band, long band, and test battery, so you can set it up and use it right out of the box. There's no need to purchase additional items.
[Product specifications]
●Product name: Black ball heatstroke index meter
●Model number: KO392 ●Body dimensions: Approx. W 60 x H 112 x D 33 mm
Weight: Approx. 79g (including batteries)
●Standard: JIS B 7922: 2023 compliant / Precision classification: Glass 2
WBGT measurement range: 0.0 to 50.0°C (in 0.1°C increments)
●WBGT accuracy: 15.0 to 40.0℃: ±2.0℃
0.0 to 14.9°C / 40.1 to 50.0°C: ±3.0°C
Temperature (air temperature) measurement range: -9.9 to 60.0°C (in 0.1°C increments)
●Temperature accuracy: 20.0 to 50.0℃: ±0.6℃
-9.9 to 19.9℃ / 50.1 to 60.0℃: ±1.0℃
Temperature measurement range: -9.9 to 60.0°C (in 0.1°C increments)
●Temperature accuracy: 20.0 to 50.0℃: ±0.6℃
-9.9 to 19.9℃ / 50.1 to 60.0℃: ±1.0℃
Humidity measurement range: 0.1 to 99.9% (in 0.1% increments)
Humidity accuracy: 30.0 to 90.0%: ±5.0%
10.0 to 29.9% / 90.1 to 99.9%: ±10.0%
●Usage environment Temperature: 5.0 to 60.0℃
Humidity: 20.0 to 80.0% (no condensation)
●Storage environment Temperature: -10.0 to 60.0℃
Humidity: 0.0 to 100.0% (no condensation)
Wind speed: 0.3~3m/s
Measurement interval: Approximately 20 seconds
Warning alarm: 3 volume levels (high/low/none)
Measurement interval: Approximately 20 seconds
Power supply: 1 x CR2032 coin-type lithium battery (DC 3V)
Battery life: Approximately 8 months (when used for 4 hours per day)
●Accessories: Carabiner, band (1 long and 1 short), instruction manual, trial battery (CR2032 x 1)
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