The Extech RHT510 puts clear climate data in your hand. It measures relative humidity and air temperature in real time, then works out dew point and wet bulb right away. You can trust each value because the sensors are factory-calibrated.
Use the Extech RHT510 in plant rooms, cold stores or labs, and move from one test point to the next without delay. A single press freezes the live reading, and another press recalls the highest and lowest values from the session.
Reliable Readings Indoors and Out
The Extech RHT510 ships with a bead wire Type-K probe that clips in seconds. This probe handles up to 250 °C, while the meter accepts any standard Type-K to 1300 °C, so you can log supply-air or stack flue levels with ease. Because the display shows probe and ambient values side by side, you spot trends before they become faults.
Built for Demanding Field Work
Engineers count on the Extech RHT510 to last the whole shift. The rubber grip housing resists knocks, the backlight makes night checks simple, and the auto-off mode conserves the battery, yet you can disable it for long data runs. With its compact size, this tester fits any toolkit and meets the daily needs of HVAC and quality teams.
Key Features
- Pocket-size design fits surveyor toolkit
- Dual sensor displays humidity and temp together
- Dew point and wet bulb are calculated live
- Replaceable bead wire probe extends life
- 1300 °C range with optional thermocouples
- Data hold freezes reading for easy note-taking
- Auto-power-off can be disabled for long tests
- Rubber grip housing resists workshop knocks
- Large backlit display remains clear in glare
- Min-max memory stores extremes for QC reports
