Review on 🏠 UCTRONICS DC 12V Programmable Time Delay Relay Module with LED Display for Smart Home Automation by Tracy Smith

Read the setup procedure below to understand how to program this timer. on and 2 seconds off. It worked beautifully and never missed a beat. I connected it to the relay control board so the relays would turn on for 2 seconds, then turn off for 2 seconds, then turn on again for 2 seconds and so on. Over 100,000 cycles without failure. Not bad, especially considering the price. The instructions it contains are limited. Here is another explanation of how to program this timer. 1. To set the timer. Press and hold the SET button. This puts it in programming mode. To select a function, a short press on the "Set" button jumps to four functions. The selected function is indicated by a small blue LED to the right of the measured values. These functions are: MO. When this indicator is lit, you can select a mode. You dial 1-18 (See the instructions attached to the T1 timer. When this indicator is on, you can set the time for T1 T2. When this indicator is on, you can set the time for T2 NX. When this indicator is on, you can set the Set Multiplier for T1 and T2MO - TIMER MODE Set from 1 to 18 depending on how you want the timer to work See the manual that came with the timer for a limited explanation of the modes, it's best to experiment with a few before choosing of final T1 mode - FIRST PERIOD DELAY Depending on the mode selected, this is the delay from the first receipt of the input trigger pulse to the second T2 action See the timing diagrams for further explanation, make sure you understand what is happening when you turn on the power vs. what happens when a trigger pulse is given. Delay and in some mods Trigger Reapplying. T2 determines the delay until the next th action. NX - NUMERIC MULTIPLIER. Used to set T1 and T2 values greater than 9999 seconds. The default value of NX is 0101. To determine the actual time delay, T1 is multiplied by the left two digits of NX. The resulting value is the delay in seconds used by the timer. Likewise, the right two digits of NX are the multiplier for T2. For example, imagine T1 = 2000, T2 = 4000 and NX = 0105. Then the actual delay would be 2000 seconds (2000 x 01) for T1 and 20000 (4000 x 05) for T2. Setting NX to zero doesn't seem to do anything.