Relative humidity range from 0% to 100%. Temperature range from -10°C to 60°C (14°F to 140°F)</br>Min/Max, Hold for easy data analysis.</br>Backlit displays of temperature and humidity.</br>Auto power off (APO). APO can be disabled for continuous monitoring purpose.</br>Battery Low Indicator. Batteries Included.</br></br>Product Description</br></br><b>Overview</b><br> Lightweight and easy to hold, RockyMars® RT36 is a handy mini temperature and humidity meter widely used in facility maintenance, environmental monitoring, HVAC-service, health care, etc. It takes accurate temperature and humidity readings quickly and conveniently.<br> <br> <b>Specification</b><br> Relative Humidity Range: 0% ~ 100%, Resolution: 0.1% RH, Accuracy: +/-5% RH<br> Temperature Range: -10°C ~ 60°C (14°F ~ 140°F), Resolution: 0.1°C or 0.2°F, Accuracy: +/-1.0° C or +/-2.0°F. <br> Min/Max, Hold for Easy Data Analysis. <br> Fahrenheit or Celsius <br> Auto Power Off. APO could be disabled for continuous monitoring purpose. <br> Battery Low Indicator <br> Backlit Displays <br> <br> <b>Unpacking</b><br> This package contains：<br> RockyMars® RT36 Temperature and Humidity Meter x1<br> 1.5v AAA Battery (already installed) x3 <br> Owner's Manual x1<br></br><br/>http://www.amazon.com/gp/product/B01M3Q2T21