ITEM NAME:T2310 DC 24V Programmable Time Delay Relay Control Module Normally Open A#S Product Description Description: T2310 Programmable Digital Time Delay Switch Relay DC 12V 24V AC 110-220V Normally Open Timer Control Module 0-999 Second Min Hour Specification: Temperature control range: -55℃~+120℃/-67℉~ +248℉ Temperature control accuracy: 0.1℃/0.1℉ Display color: red + blue Power supply: DC 12V, DC 24V, AC 110V~220V (Optional) Sensor: NTC 10K 1 meter (including probe) Product size: 79.2mmx41.9mmx26.3mm/3.13x1.65x1.04" Hole size: 72.1mmx39.2mm/2.84x1.54" Product weight: 52g (12V/24V), 59g (110V~220V) Operation guide 1. Short press the "SET" small digital tube flashes, press "up" or "down" to set the target temperature, press the "standby" button or no operation within 3 seconds to save the setting. 2. Long press "SET" to enter the code setting mode, press "up" or "down" to switch the code, short press "SET" to enter the code setting after selection, press the "standby" button after setting or save the setting without operation within 3 seconds . 3. The last parameter setting is saved by default after shutdown. 4. Restore factory settings: press and hold "SET" to power on. 5. The module starts directly when the module is.The module starts directly when the module is powered on. Blue The blue light is flashing, the cooling mode is delaying start; the blue light is always on and the cooling mode is running. Red red light is flashing, heating mode is starting delay; red light is always on and heating mode is running.