The Extech RHT3 is a versatile and feature-rich digital hygro thermometer designed for accurate measurement of temperature, relative humidity, and dew point. This handheld instrument combines reliability, convenience, and essential features to provide comprehensive environmental monitoring capabilities for professionals in industries such as HVAC, agriculture, and indoor air quality assessment. The Extech RHT3 features built-in sensors for measuring temperature and relative humidity. It offers a wide measurement range for both parameters, ensuring accurate readings in various environments. Additionally, it calculates the dew point, which is the temperature at which condensation occurs, providing valuable information about moisture levels in the air. Equipped with a large, backlit LCD display, the RHT3 shows real-time temperature, relative humidity, and dew point readings simultaneously, enabling easy monitoring and analysis of environmental conditions. It may also offer additional features such as data logging capabilities for recording and storing measurement data, adjustable sampling rates, and a memory function for storing minimum and maximum readings. The hygro thermometer is typically battery-powered and offers a compact and portable design, allowing for convenient use in different locations. It may also include features like programmable high/low alarms for temperature and humidity, alerting users when specific thresholds are exceeded. The Extech RHT3 is suitable for a wide range of applications, including HVAC system evaluations, building inspections, agricultural monitoring, and indoor air quality assessments. Accurate and reliable measurements of temperature, relative humidity, and dew point are crucial for maintaining optimal conditions, identifying potential issues, and ensuring regulatory compliance.