You can set delay turn on or delay off. It for protection against power reversal for protection diode, better for protection module. Relay Load Capacity 1× 12V Delay Relay Turn on/ Turn off Module.
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4pcs DC 12V Relay Module 1 Channel Relay Board with Optocoupler Isolation Support High or Low Level. Jumper Design: The Relay Module has a Jumper That You Can Set Rather the Unit State Changes with High or Low Signal.
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5.18mm DIN rail installation. Go out scene (turn off lights, water heater, TV, air conditioner. ). This is the relay type, no short circuit, overload for protection. Does not contain special characters.
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DS3231 RTC module with AT24C32 memory for Arduino and microcontrollers. High precision I2C real time clock with battery backup, automatic leap year, two alarms, square-wave output. Replaces DS1307. 3.3V-5.5V operation, easy I2C interface, compact 38x22 mm. Ships from USA with free USPS Ground Advantage Shipping with Tracking. Battery not included.
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P7: Signal hold function: The signal is maintained, the timing is cleared, and the relay conduction; when the signal disappears, the relay disconnects after the timing OP; during the timing, there is another signal and the timing is cleared;.
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It starts counting and accumulating as soon as it is powered on. Made of materials, sturdy and. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
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