Extech HT30 Heat Stress WBGT Meter
The Extech HT30 Heat Stress WBGT Meter helps safety teams measure heat stress in demanding work areas. It combines wet bulb globe temperature readings with air temperature, globe temperature and humidity data. As a result, users can make quick decisions to protect staff working in hot conditions.
This instrument is suitable for factories, foundries, warehouses and sports facilities. The large display shows all key values at the same time, so there is less need to move between menus. In addition, the in/out function adjusts calculations for direct sunlight and indoor environments.
Designed for Accurate Monitoring
Because the Extech HT30 Heat Stress WBGT Meter uses a black globe sensor, it can account for radiant heat that ordinary thermometers do not detect. Readings update quickly and provide dependable information when conditions change. The lightweight design also makes it easier to carry during inspections.
Data can be transferred through the built-in RS-232 interface for recording and reporting. Supervisors can keep a record of measurements and use the information to support workplace safety programmes. Auto power off helps save battery life during periods of inactivity.
Made for Daily Use
The Extech HT30 Heat Stress WBGT Meter has a durable ABS housing that protects the sensors during routine use. Its long 254 mm body helps users reach above equipment and machinery when taking measurements. Two different set types are available, allowing buyers to choose the package that best suits their application.
Backed by CE marking and a two-year warranty, the Extech HT30 Heat Stress WBGT Meter is built for reliable service in professional environments. The instrument offers simple operation and clear results while helping organisations maintain safe working conditions. It is an effective solution for monitoring heat exposure in both indoor and outdoor areas.
Key Features
- Measures wet bulb globe temperature for heat stress assessment
- Displays air temperature, globe temperature and relative humidity together
- Selectable indoor and outdoor WBGT calculations
- Large digital display for quick viewing of readings
- Black globe sensor measures radiant heat effects
- In/out function compensates for direct sunlight exposure
- Selectable temperature units in °C and °F
- Built-in RS-232 interface for data transfer
- Auto power off function can be overridden during long logging sessions
- Lightweight handheld design improves user comfort
- ABS housing protects the instrument during site use
- Suitable for industrial plants, warehouses and sports facilities
- Supplied ready to use with pre-installed batteries
- Available in two different set configurations
- Covered by a two-year manufacturer warranty
Technical Specifications
| Manufacturer | Extech |
| Product name | HT30 Heat Stress WBGT Meter |
| Manufacturer part code | HT30 |
| Wet Bulb Globe Temperature range | 32 to 122°F (0 to 50°C) |
| Wet Bulb Globe Temperature accuracy | ±4°F / ±2°C |
| Black globe temperature range | 32 to 176°F (0 to 80°C) |
| Black globe temperature accuracy | ±4°F / ±2°C |
| Air temperature range | 32 to 122°F (0 to 50°C) |
| Air temperature accuracy | ±1.8°F / ±1°C |
| Humidity range | 0 to 100% RH |
| Humidity accuracy | ±3% RH |
| Temperature units | °C and °F selectable |
| Interface | RS-232 serial output |
| Power supply | Two AAA batteries |
| Dimensions | 10 x 1.9 x 1.1 in (254 x 48.7 x 29.4 mm) |
| Ball diameter | 1.6 in (40 mm) |
| Ball height | 1.4 in (35 mm) |
| Weight | 4.8 oz (136 g) |
| Certification | CE marked |
| Warranty | Two-year warranty |
Document Downloads
What’s Included
- Extech HT30 Heat Stress WBGT Meter
- Two AAA batteries pre-installed