Extech HT30 Wet Bulb Globe Temperature Meter

  • WBGT, wet bulb, dry bulb and globe temp – full heat stress check
  • Indoor/outdoor readings – works anywhere
  • Audible alarm – alerts when limits exceed
  • Backlit LCD – clear in any light
  • Data hold/min-max – quick review of results
  • Tripod mount – easy hands-free use
  • Auto power-off – saves battery
£196.50 £163.75

Availability: In stock

Product Code
EXTHT30

Free Delivery

90-day Returns

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Extech HT30 Wet Bulb Globe Temperature Meter

What is the Extech HT30 Heat Stress WBGT Meter?

The HT30 Heat Stress WBGT Meter is a professional wet bulb globe temperature (WBGT) meter designed for UK HVAC engineers, occupational safety officers and environmental technicians who monitor and manage heat stress in workplaces, factories and outdoor environments.
It measures wet bulb, dry bulb, globe temperature and relative humidity to calculate WBGT values, helping ensure safe working conditions and compliance with heat stress regulations.

 

How does the HT30 stand out in everyday use?

The HT30 combines accurate temperature and humidity sensing with an intuitive display that instantly shows WBGT readings for indoor and outdoor conditions.
Lightweight and portable, it’s ideal for field checks, HVAC commissioning or workplace assessments. With data hold, min/max tracking and audible alerts, technicians can identify heat stress risks quickly and confidently.

 

Order today to enjoy free delivery, expert support and our 90-day satisfaction guarantee. Need advice? Our team is here to assist you.

 

More Information
ManufacturerExtech
Manufacturer Part NumberHT30
GTIN0793950110300
document Datasheet HT30 (263.60 kB)
document Manual HT30 (119.34 kB)
  • WBGT range (outdoors): 0 to 50 °C
  • WBGT range (indoors): 0 to 50 °C
  • Temperature range: 0 to 50 °C
  • Humidity range: 0 to 100 %RH
  • Globe thermometer: 50 mm black ball sensor
  • Accuracy (temperature): ±1 °C
  • Accuracy (humidity): ±5 %RH
  • Resolution: 0.1 °C / 0.1 %RH
  • Display: Dual backlit LCD
  • Alarm: Audible, user-adjustable
  • Power supply: 4 × AAA batteries
  • Dimensions: 280 × 50 × 35 mm
  • Weight: 260 g
  • FLIR HT30 Heat Stress WBGT Meter
  • Globe temperature sensor
  • 4 × AAA batteries
  • Protective carry case
  • User manual

Why choose Instrotech for your electrical test equipment?

With over 40 years’ experience supporting UK electricians, technicians and engineers, Instrotech is your trusted partner for quality tools and expert service. When you purchase from us, you benefit from:

  • Free UK shipping on all orders
  • Access to our knowledgeable technical support team
  • Available calibration services to maintain safety compliance
  • A 90-day money-back guarantee for complete peace of mind

We’re committed to helping you work safely and efficiently with industry-leading products and ongoing support.