GEYA Delay Off Single Function Time Relay 2 Outputs 16A Electronic Power Off Timer Delay Relay(GRT8-B2,AC/DC12V-240V)

Works perfectly

Relay works as described except for the input voltage. It requires a neutral on one leg of the input or it will fry the timing circuit. The description says it will use up to 240vac but should read 230v for the European voltage levels with a neutral.

I know these are likely clones of some other brand, but they are very good quality. I have one in a dog doorbell going on 8 years. I am currently working on mechanizing a double hung window. I worked out how I wanted the logic to flow and got it done in (4) relays rather than getting into a microcontroller-- which would still require output relays. The "S" input is handy as a cancel function. For instance, in my setup, holding a momentary pushbutton for "up" jogs the motor for a short press, but electrically latches after 2 seconds (output feeds the input). Tapping the opposing button ("down"), cancels the call for "up" and jogs the motor "down". And, if held in for 2 seconds, maintains call for down. Of course, there are reversing relays and limit switches involved. Normally closed limit switches break the negative to their respective relays. Delay-off relays provide Cole Hersee style direction control while also functioning as a safety to limit max time the motor can stay on if a limit switch fails. My only complaint with these is that the terminal screws come screwed down snd must be loosened, first, and that sometimes they are overly tight from factory. Never had a terminal fail, though. All connections are solid.

Works great and easy to adjust.

This is a useful little smart relay. But, one gotcha that I didn't catch - the relay fires a cycle on power-up. I thought it was only on assertion of the S signal, but it does happen at power up also. And one other minor complaint - there's a high-pitched tone from this when operating off of 12V. Sounds like a switching power supply.

Works perfectly for my application. Needed a few seconds of a delay for my project to function properly.

I used this to replace the timer on a coin operated dryer. The coin slide activates a micro-switch to start the timer. Easy to adjust using the percentage of time - 50% of an hour is 30 minutes.

I used these on my A/C indoor fan after installing ICM Soft Start on the Units. ICM has a 4 min. timer that causes the compressor to wait for 4 min. when the thermostat calls for cooling. The indoor fan will blow hot/warm during this time. After installing these start delays, my indoor fans now turn on when the compressor does. The timers versatility allows for many different applications and I will be using them for other projects.

This is technology that does what it says. It is not a simple device and requires either brains or tenacity to get installed and working. I have some brains but more tenacity. For me, It controls a hot water recirculation system in my home. It does that by allowing me to use a low voltage button to temporarily run the pump for a specifically set duration. Just what I needed!

Excelente. Conectar, ajustar tiempo y funcionar. Muy facil y eficaz. El led verde indica que se ha alimentador el módulo. El led rojo parpadea indicando el transcurso del tiempo, hasta que se alcanza el valor seleccionado con los selectores. En mi caso lo alimento a 18Vdc, y escogi el modelo que admite voltajes ac y dc comprendidos entre 12 y 240V. Veremos su duración, pero por el momento un acierto

Works well for a timer

Funciona bién

good