Product Application
This product can turn on and off the power of various electrical equipment according to user settings. The controlled objects may include street lamps, neon lights, advertising signs, production equipment, motors, pumps, and all other electrical equipment and household appliances. In addition, this product supports customized services. Please contact customer service if needed!
Product Parameters
| Product branding | PUFFINS |
| Product model | HK-FKGD40 |
| Ambient temperature | -40°C~70°C |
| Relative humidity | <95% |
| Operating voltage | 12V, 24V, 220V, 380V |
| Emission frequency | 433MHz (420~450MHz) |
| Output mode | Passive always open / Normally closed output |
| Host size | 88*72*59mm |
| Remote control channel | 1, 2, 3, 4 |
| Mounting mode | Rail mounting, screw, mounting |
Product Function

Working Mode
Version introduction
- One: The transmitter controls the receiver
- One shot and more receiving: One transmitter controls multiple receivers
- Mutual sending and receiving each other: Transmitter control receiver; The receiver can also control the transmitter
Four shots and one receive - Four transmitters control one receiver
Remote Control Learning and Code Clearing
Learning method: After turning on the device, press the learning button for 3 seconds. At this time, the learning light will turn on (the same as the sending and receiving status), and then press any learning button on the transmitter (receiver). The learning light will flash continuously three times, and then the receiver (transmitter) will flash continuously three times to complete the learning. Turn off the device and then turn it back on to use.
How to clear code: After booting up, long press the learning button until the learning light goes out to complete the clearing!
Attention: The device has been paired before leaving the factory, and you can learn to use it without pairing!
Precautions
- Do not use this timer switch for equipment that may cause life-threatening accidents or seriously affect the experiment due to timing switch errors (such as medical equipment, large equipment, etc.).
- For equipment that suffers significant property damage due to timing switch failure (such as large heating or refrigeration equipment, etc.), sufficient margin must be reserved for the characteristics and performance parameters when using the timing switch, and safety measures such as dual circuits must be taken.
- Please do not repair, disassemble or modify on your own. If maintenance, inspection, etc. are required, please entrust the dealer or the unit responsible for construction to handle them.
- The switch should operate in an environment free of moisture, corrosive gases, and high metal content gases. Please stay away from high-voltage lines, large transformers, and other equipment that may interfere with remote control signals.
- Do not touch the terminal part after power on.
- Do not allow the switch to come into contact with oil or water.
Wiring Diagram





