

Extech RHT30 USB Humidity/Temperature Data Logger
The Extech RHT30 is a compact, plug-and-play USB datalogger designed to monitor and record relative humidity and air temperature. It features a large LCD display for real-time readings, stores up to 48,000 data points, and allows for easy data transfer to a PC in PDF or Excel format. Ideal for applications in HVAC, indoor air quality assessment, and environmental monitoring, it offers programmable sampling intervals, high/low alarms, and a user-friendly interface.
Description
The Extech RHT30 is engineered for professionals requiring accurate and reliable environmental monitoring. This USB datalogger simultaneously measures relative humidity and air temperature, displaying the data on a clear, five-digit LCD screen. It offers a wide measurement range for both parameters, ensuring versatility across various applications. The device features a memory capacity of up to 48,000 readings, with 24,000 data points allocated to each parameter. Users can configure the sampling interval between 30 seconds and 2 hours, allowing for tailored data logging to suit specific needs. The RHT30 is equipped with a dual-color LED indicator (red/green) to provide visual status updates, including data logging progress and alarm conditions. Data can be easily transferred to a PC via the USB interface, and reports can be generated in PDF or Excel formats for analysis and record-keeping. Additional features include programmable high/low alarms, an 8-location logger bookmark function, and password protection for enhanced security. Its compact design and user-friendly operation make the RHT30 an excellent choice for continuous environmental monitoring.
Features
- Dual Measurement Channels – Simultaneously records relative humidity and air temperature.
- High Data Capacity – Stores up to 48,000 readings (24,000 for each parameter).
- Wide Measurement Ranges:
- Humidity: 0.1% to 99.9% RH
- Temperature: –30°C to 70°C (–22°F to 158°F)
- Sampling Interval – Configurable from 30 seconds to 2 hours.
- Data Transfer – Easy connection to PC via USB for data export in PDF or Excel formats.
- Visual Indicators – Dual-color LED status indicators for data logging and alarm conditions.
- Alarm Functionality – Programmable high/low alarms for both temperature and humidity.
- Bookmarking Capability – Supports up to 8 location bookmarks for data segmentation.
- Security Features – Password protection to secure data and settings.
- Compact Design – Lightweight and portable, suitable for various monitoring environments.
Includes
- Extech RHT30 USB Humidity/Temperature Datalogger
- 2 x CR2032 batteries
- USB cover/stand
- Wall mounting screw
- Built-in hanger
- Instructions for Extech RHT30