Feature 1LED SCREEN: Mini thermostat with large and clear LED display for better readability, very convenient 2SAFE ALARM: The thermostat supports switching of cooling and heating modes, and supports alarm function of temperature exceeding limit or sensor error to ensure safety 3OPERATING PRINCIPLE: The thermostat can control the temperature by setting the temperature setting value and the difference value 4SOLID SHELL: Temperature controller adopts ABS flame retardant plastic shell, which possess impact resistance, scratch resistance and is environmentally friendly 5ACCURATE AND SENSITIVE: Temperature controller with NTC sensor, possess high sensitivity, fast response speed. High resolution accuracy, power consumption <3WSpecificationItem Type: Digital Temperature ControllerMeasurement and Control Temperature Range: -50 - 99Resolution: 0.1Accuracy: 1 (-50 - 70)Power Consumption: <3WSensor: NTC sensorAmbient Temperature: 0 - 60Storage Temperature: -30 - 75Relative Humidity: 20% - 85% (no condensation) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Digital Temperature Controller