RF Remote Control Blog

Question from customer: I am looking for a long range relay to control a water pump. The water pump now is controlled by a float switch (on/off) at the reservoir 800 meters away. I have 120 volts at both locations and a relay to start pump. Answer: We recommend the 2000m rf AC receiver (S1PUA-AC220-ANT2) and the long range transmitter CB-2N. The receiver is soldered with external extended antenna, which can make its transmission distance at 2000m/6000ft theoretically. It works between AC 100~240V voltage. The maximum working current is 30amps. There are 315Mhz or 433Mhz at your option. The transmitter is special designed because its triggered method is connection and disconnection of two wires. When two wires are connected, the transmitter is triggered and then transmits an rf signal “ON”. When two wires are disconnected, the transmitter is triggered and then transmits an rf signal “OFF”. The wiring method of your water pump will be talked next. A, B terminals are normally open...

Question from customer: I want a long range transmitter and customized receiver for alarm in my security office. Do you have a recommendation for which Wireless remotes or RF transmitters may be the best for the task at hand? See the below sample of diagram: All the number need LED light when the remote is “ON” and reset button for “OFF” the buzzer. Answer: Our remote controllers have various functions. Here we recommend a 1000M transmitter (CB-1). Encode: Fixed code by jumpers. Its unit size is 135mm x 42mm x 25mm. Power Supply: 1 x 6F22-9V battery. Its remote control distance is 2000 meters or so with customized long range receiver. We can use it to control alarm in security office. We can prepare 20 transmitters with different codes. When something emergency happened, press button on the transmitter, the corresponding LED light will be lighted and the buzzer will vibrate. Press button again, the corresponding LED light will be off. When the master reset button is pressed, th...