Instructions for operation: 1. Set startup temperature/humidity:Press the "up" button once to display the starting temperature(humidity). Long press the "up" button for about 3 seconds,The required temperature(humidity) can be set by the up and down keys 2. Set the stop temperature/humidity:Press the "down"button once to display the stop temperature(humidity). Long press the button for about 3 seconds and the stop temperature(humidity) number flashes. The required temperature(humidity) can be set by the up and down keys 3. Temperature/hunidity correction:Press "up" and "down" button at the same time. Colour:Photo Color Material:plastic The accessories on the side of the product are red and orange and can be sent randomly. No specification is accepted. Package Contents: 2 x thermostat