Smart Programmable Thermostat with Timer This programmable thermostat automatically controls the switching of cooling and heating devices, featuring intelligent temperature control and synchronization. Temperature Range: -40 ~ 120 °C Intelligent Temperature Sensor: Precisely monitor and control room temperature with the included 1.8m cable temperature sensor for real-time readings. High-Resolution LCD Display: Clearly monitor all data with the high-resolution LCD screen for precise, real-time temperature control. Accuracy: +/- 1%, Synchronization Accuracy: Max 10 minutes. F01: Cycle Break Function: Cycle method for cycle F01, functioning as a start time (open)/departure time (closed) for the work cycle. F02: Synchronization Enabled Mode: With F02 synchronization mode enabled, currently in a delayed state (delay) activated. F03: Synchronization Stop Mode: With F03 synchronization stop mode enabled, the current is activated, the delay (stop time) is disabled, the stop count is complete, the output is disabled, and the output is out of service. F04: Timer Run/Stop: Timer F04 run/stop, the current state is disabled, the time limit (start time) is enabled, and the time (stop time) is disabled after activation. When the countdown of the stop time is complete, turn off the output and exit the operation. In time mode, at start time/stop time.