PEMENOLDelay Relay Module, DC 12V 24V Time Delay Relay Controller Board LCD Display Digital Timer Switch Trigger Cycle Timer Module Power On-Off Controller Support XH2.54-3P Connector

Have purchased several of these previously and all worked great. Note there is a slight discrepancy between the Amazon title page and the instruction sheet. Amazon lists these as 12V to 24V, but the user guide states 6V to 30V. These do seem to work down to 6Vdc and I've been using them at 9Vdc without any problem.There were other brands that were slightly less expensive than the PEMENOL, but since these work good I'm sticking with them. Some have been in use for over 2 years now.

Easy to use compact timer relay. Exactly what I needed to prototype an inexpensive science display I am developing. The timer/relay unit came in a item# and labeled plastic bag, inside its dedicated box with padding inside a standard amazon box. Plenty of protection for something this small and lightweight. Instructions are included within the description of this listing with programming and wiring diagrams. It has options for standalone timer with built in relay, high and low level triggers as well as UART input. I only needed the simple way of wiring it with built in timer and screw terminals. accessible without taking the rear cover off. In the video I included is the relay timer powered a 24v wall rat controlling a 24v/20w electromagnet in a repeating sequence. I used program 6 (P6) with 3.0seconds off and 2.5seconds on. In P6 you can pause/start the on/off cycle without starting from the beginning of the cycle.I used the built-in switch, but it is easy to wire in a contact switch (normally open) and other functions easily.The unit came in a nice box, well packaged and arrived very fast. In addition to the instructions linked in the description section of the listing and If videos make it easier for you to learn, there is a youtube video that demonstrates a lot of the features In this unit. The video is about 9mo old when I wrote this review, I do not know anything about that video creator/youtube user but it helped me learn fast.On YouTube search for-> " Multi Function Time Relay 35874 RL "

It's simple and provides a basic interface for setting up monostable or bistable pulse outputs.But, the instructions Sierra Uniform Charlie Kilo big time. No examples on how to set it up, but after reading the second hand English about 4 times I just started trying different different settings and figured it out.I'd give this a 5 star rating if they had a better instructions, as the value is excellent and the interface is clean.

Very easy to adjust time on it. Came with no instructions but YouTube video and schematics on page when purchasing

This device is much more complex and capable than it would first appear to be.It has a backlit blue LCD screen which shows the timer mode, and the countdown timer, and is also used to set the parameters for the module. The screen automatically powers off if there are no inputs for 5 minutes. It is intended to be panel mountedThe timer can be set from 999.9 minutes down to .01 seconds.It controls one circuit with a built-in relay on board. It will operate on from 6 to 30 VDC, and the relay is marked for a rating of 20A, for both 125VAC and 14VDC. The instruction sheet shows a 220VAC load connected to it, and says it can control up to 5A at 220VAC, so I guess that's OK , too.When the onboard relay is not activated, the idle current is a mere 15mA. If the relay is active, it goes to about 50mA.I cannot verify the actual capacity of the relay, that's just what's marked on it. So if your controlled device falls within that range, you should be all set.This module has 10 different timing modes, and allows high and low voltage triggers, or the front panel switch to control the start time for the timing cycle.The settings are retained after power is turned off, so you don't have to reset them each time you power it up/down.The operating modes are varied from simple to very complex . You can use a "push to start timer" mode with the front panel button, which will then either open or close the relay, depending on the mode you've selected. You have a choice as to whether the module then starts another timing cycle automatically, or waits for another trigger to do so.The other modes can be much more complicated, and if you need them, the instruction file for them will probably make sense to you. I suspect most will use it in one of the simple "Time to start", or "Time to stop" modes. It can be used for one cycle, a specified number of cycles, or an infinite number of repeats (LOP, which I guess stands for Loop.)If you need the more complex hi-low signal triggering modes, you will need to access the inside of the case, which is simple to remove, and connect to a Molex-type connector on the circuit board. But a simple screw-type On/Off Power connector is easily accessible from outside the case.It even has an onboard serial data interface UART, which can be used to upload parameters to set the timers, modes, etc., through a serial connection. But the documentation is a little sparse on that score. If you need more than the info in the instruction sheet, I would contact the manufacturer for more data.But as a simple timer, or complex cycle timer, it is very capable, and seems to work very well. I tested several modes, and everything works as advertised, once I figured out what the different modes were supposed to do.All in all, there's much more than meets the eye here.