KEM WBGT – 302 Wet Bulb Globe Temperature Meter

Product Overview

The KEM WBGT-302 is a more advanced WBGT meter engineered for occupational health, industrial sites, and robust heat stress management. Like the WBGT-301, it conforms to JIS B 7922 Class 1.5, but includes an external sensor probe for flexible placement, making it better suited to challenging work environments.

The external sensor element allows you to place measurement points closer to workers,machinery, or zones of interest, offering more accurate site-specific readings. This meter is ideal for factories, construction sites, workshops, and areas where radiant heat or airflow patterns may interfere with integrated sensors.

Key Features

Can measure Wet Bulb Globe Temperature (WBGT), perfect for preventing heat stress - related illness at work/industrial settings
Can measure Globe Temperatures up to 80 ° C, suitable for extremely hot industrial environments
The light and portable instrument can be battery - operated, letting you measure WBGT anytime, anywhere
Has a built - in temperature alarm and can save up to 30,000 measurements worth of data
The device is dustproof and water - resistant for peace of mind, rated to the equivalent of IP65
The device has a USB Type - C port for data transfer and for providing external power from a PC or portable battery charger* (as an alternative to using AA batteries)

*only use a portable charger that has compatibility with a low power consumption mode.

WBGT & Safe Work Intensity

Acceptable physical work intensity by WBGT

Specifications

Model Name	WBGT-302
Intended Use	For use in the workplace/industrial sites
Precision Rating	JIS Class 1.5(*1)
Ingress Protection	Equivalent to IP65 (*2) (dustproof and water resistant)
Display	2.8-inch LCD screen (56mm x 42mm)
Measurement capabilities	WBGT, ambient temperature, relative humidity, globe temperature
Measurement range & (display resolution)	WBGT: 0.0°C-50.0°C (displayed to nearest 0.1°C) Ambient Temperature: 0.0°C-50.0°C (displayed to nearest 0.1°C) Relative Humidity: 10.0%-90.0%RH (displayed to nearest 0.1%RH) Globe Temperature: 0.0°C-80.0°C (displayed to nearest 0.1°C)
Accuracy *under a natural draft (0.3 to3 m/sec)	WBGT: ±1.5°C (15°C-40°C) Ambient Temperature: ±0.6°C (20°C-50°C) Relative Humidity: ±3.0% (30%-90%RH) Globe Temperature: ±0.6°C (20°C-60°C)
Memory capability	Stores the data of up to 30,000 measurements (most recent data saved)
External interface	USB Type C
Communication specification(*3)	USB connection (USB communication/RS communication) UART connection
Power source	AA alkaline batteries USB
Battery life	Approximately 6 months (*4)
Dimensions	69 (W) x 36 (D) x 272 (L) mm 2.7 (W) x 1.4 (D) x 10.7 (L) inches
Weight	Approximately 230 g/8.1 oz (battery weight included)

(1) Sensor accuracy is based on the JIS B 7922 stipulation (Japanese Industrial Standards).

(2) Devices confirmed to have IPX5-equivalent water resistance at time of shipment. Use as recommended in the user manual. Damage due to liquids is not covered by warranty.

(3) Please use the specified cable for connection to the device.

(4) Depending on utilized settings, period of active use, usage environments, etc.

Applications

Why Choose Pro - Tec Geosystems for the WBGT - 302?

Contact Us

Equip your workforce with the KEM WBGT-302 Heat Stress Meter for accurate, real-time monitoring and compliance with Singapore’s heat stress standards.