The Extech HW30 fits easily in your palm yet handles much more than time. It measures live temperature and humidity so you know how the day really feels.
Reliable timing when every second counts
First, the Extech HW30 starts, stops and stores up to 30 lap or split results for later study. Then it recalls fastest, slowest and average numbers, helping coaches track gains.
Stay safe in hot conditions
Next, the Extech HW30 reads the air every few seconds and calculates the heat index, an all-important feel-like value. When your preset limit is met it sounds an alarm, so teams pause before risk grows.
Because of these safety and timing tools, the Extech HW30 suits sport, site work and science lessons alike. Its bright back-light, simple four-button face and supplied lanyard keep work flowing even after the sun sets.
Key Features
- Lightweight ABS housing resists knocks
- Back-light enables night viewing
- Simple four-button interface speeds set-up
- User set heat index alarm shields health
- 30 lap memory with fastest and average recall
- Ten hour countdown for warm-ups or rests
- Switchable 12 or 24 hour time display
- Temperature and humidity refresh every five seconds
- Supplied lanyard keeps Extech HW30 within reach
- Battery installed for instant operation

