Heat Stress WBGT Meter

Part Number: HT30
Price: $197.99
in stock


• Heat Stress Index measures how hot it feels when humidity is combined with temperature, air movement, and radiant heat
• Black Globe Temperature (TG) monitors the effects of direct solar radiation on an exposed surface
• Air Temperature (TA) plus Relative Humidity (RH)
• Selectable units of °F and °C
• In/Out Function displays the WGBT value with or without direct sun exposure
• User Adjustable alarm once threshold is reached
• Auto Power Off with override
• Built-in RS-232 interface with optional Windows® compatible software
• Complete with two AAA batteries

For data-logging and record keeping consider the PC software option above (407752)


Know These Heat Disorder Symptoms
Heat Disorder: Sunburn
Symptoms: Redness and pain. In severe cases, swelling of skin, blisters, fever, headaches.
First Aid: Ointment for mild cases if blisters appear. If breaking occurs, apply dry sterile dressing. Serious, extensive cases should be seen by a physician.

Heat Disorder: Heat Cramps
Symptoms: Painful spasms usually in muscles of legs and abdomen possible. Heavy sweating.
First Aid: Firm pressure on cramping muscles, or gentle massage to relieve spasm. Give sips of water. If nausea occurs,
discontinue use.

Heat Disorder:
Heat Exhaustion
Symptoms: Heavy sweating, weakness, skin cold, pale and clammy. Pulse thready. Normal temperature possible. Fainting and
First Aid: Get victim out of sun. Lay down and loosen clothing. Apply cool wet cloths. Fan or move victim to air conditioned room. Sips of water. If nausea occurs, discontinue use. If vomiting continues, seek immediate medical attention.

Heat Disorder: Heat Stroke (or sunstroke)
Symptoms: High body temperature (106°F, or higher). Hot dry skin. Rapid and strong pulse. Possible unconsciousness.
First Aid: Heat stroke is a severe medical emergency. Summon medical assistance or get the victim to a hospital
immediately. Delay can be fatal. Move the victim to a cooler environment. Reduce body temperature with cold bath or sponging. Use extreme caution. Remove clothing, use fans and air conditioners. If temperature rises again, repeat process. Do not give fluids.

WARNING: Sudden temperature and humidity changes (e.g. going indoors to outdoors) may cause inaccurate Temperature, Humidity and Heat Index readings for up to 45 minutes. Until readings stabilize (e.g. stop steadily increasing or decreasing), users should NOT rely on the Temperature, Humidity or Heat Index readings of this meter, or on the meter’s alarm function in regards to such readings. This meter is NOT a medical device and users should NEVER rely on readings for medical purposes.

Heat Index

Heat Index Risk Level Protective Measures
Less than 91°F Lower (Caution) Basic heat safety and planning
91°F to 103°F Moderate Implement precautions and
heighten awareness
103°F to 115°F High Additional precautions to protect workers
Greater than 115°F Very High to Extreme Triggers even more aggressive protective measures

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