Key benefits Simple, clear control of start and stop temperature or humidity setpoints. Reduces manual monitoring by letting you program automatic on/off thresholds. Fast setup with tactile buttons — no menus or complex programming. Helps protect sensitive environments or equipment from temperature/humidity excursions. What this control does Lets you set a starting (activation) temperature or humidity and a stopping (deactivation) temperature or humidity. Uses three front-panel buttons: Up, Down, and ON for quick adjustments and confirmation. Visual confirmation during programming: the selected value flashes when ready to edit. How to set it (concise, step-by-step) Set starting temperature/humidity: Press the Up button once to display the starting temperature (humidity). Press and hold the ON button for about 3 seconds until the value is ready to edit. Use the Up and Down buttons to adjust to the desired starting temperature (humidity). Set stop temperature/humidity: Press the Down button once to display the stop temperature (humidity). Press and hold the same button for about 3 seconds; the stop temperature (humidity) value will flash. Use the Up and Down buttons to set the desired stop temperature (humidity). Important attributes Function: Programs both start (activation) and stop (deactivation) temperature or humidity setpoints. Controls: Dedicated Up, Down, and ON buttons for straightforward adjustment and confirmation. Feedback: Display shows the active value and flashes during entry so you know when changes are being made. Operation: Press-and-hold (about 3 seconds) to enter set mode, then adjust with Up/Down. Typical applications Small greenhouses: Automatically start ventilation or humidification at the programmed setpoints to protect plants. Storage rooms and archives: Prevent conditions that could damage inventory or documents by switching climate control at the set thresholds. Incubators and lab equipment: Maintain controlled conditions by defining precise start/stop setpoints for heating or humidifying systems. User tips Always confirm the displayed value before leaving the unit to ensure the correct setpoint is saved. Use single-button presses to view current start or stop values; press-and-hold to edit. If a displayed value is flashing, it is in edit mode — adjust with Up/Down and then wait or press ON (if applicable) to confirm. This description reflects the device’s operation and button functions as provided: setting starting and stopping temperature/humidity using the Up, Down, and ON buttons with a roughly 3-second press-and-hold to enter edit mode.