Extech Instruments RHT30 User Manual page 2

Introduction
Thank you for selecting the Extech multi‐function, easy‐to‐use, portable USB
datalogger. The RHT30 offers temperature and humidity logging and the TH30 offers
internal (air) and external (probe) temperature logging.
These USB dataloggers can be configured and customized by the user by plugging them
into a PC USB port, following the on‐screen prompts, and making selections on the
supplied 'PDF Logger Configuration Tool'.
These devices are shipped fully tested and calibrated and, with proper use, will provide
years of reliable service.
Features
 Plug‐and‐play datalogger with USB connector. No USB driver required
 User configurable datalogging settings via supplied PC software tool
 Advanced Datalogger functions including delayed start, high/low alarms,
bookmarking, and password protection
 Automatically generate PDF and Microsoft
 High accuracy thermistor temperature sensor on both models with capacitive
humidity sensor on the RHT30
 Compact light‐weight design
 Large LCD for easy viewing
 Dual color (red and green) LED status indicator for datalogger progress, PC
connection status, and high/low alarms
 Large memory capacity: 48,000 readings
Descriptions
Datalogger Description
1. External temperature sensor (TH30 only)
2. External temperature sensor connection
to datalogger (TH30 only)
3. Protective cover and swivel stand
(remove to expose USB plug). Rotate the
cover for best desktop viewing angle.
4. LCD display. Refer to the Display Description later in this section.
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