RF Remote Control Blog

Electromagnetic lock is a locking device that consists of an electromagnet and an armature plate. The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. Essentially it consists of an electromagnet attracting a conductor with a force large enough to prevent the door from being opened. That is to say, if only we could cut off power supply and make electromagnet force between electromagnet and armature plate to disappear, the door would be opened. Furthermore, we just try to use a direct dc output momentary remote and one button transmitter to cut off electric power to open the door. The following demonstration will show. At first, we prepare material. The wiring When we supply power to electromagnetic lock, electromagnet will attract armature plate through magnetic force. The door is locked. When we press button, the power supply will be cut off. The door is open as soon as electromagnetic lock unlock instantly. What’s more, t...

I am searching for a motion detector controls a solenoid valve which works in a tank for hand-washing. Answer from supplier: We recommend this Infrared PIR Motion Sensor Model of 0040101. The module can accurately detect any moving objects within the detective range and commonly be used to detect human body movement. It has higher sensitivity and broader detective range than others. The motion sensor detector will work with the solenoid valve. Wire the solenoid valve to the detector according to the wiring diagram. When someone puts his hands under the tap, the PIR motion sensor detector will detect and indicate the solenoid valve installed on the tap to open. The water will trickle out from tap for hand washing. It lasts about 20 seconds. The water will stop trickling out after 20 seconds. Online shop:  http://www.carymart.com/

Question from customer: I want to control 4 devices with one remote. The devices will require receivers individually and also they will be pretty far apart. Will the Model: 0021018 (CV-4) remote works with four 0020040 (S1T-DC12) receivers? Answer : Yes, you can use one remote CV-4 to work with four S1T-DC12. However, we would like to suggest that you can order four long-ranging remote control models of 0020267 (S1T-DC12-ANT2) receivers. 4 external extended antennas 0020909 are respectively installed to each receiver for longer remote distance and one long range remote transmitter CV-4. Working distance can reach 500m (1500FT). They are very favorable for your pretty far apart transmitter and devices. There are four buttons on the transmitter and each button controls a receiver. Wiring diagram is as follow: Each device is connected to the normally open B&C terminals and supplied dc 12V power supply. And each receiver is connected to the dc 12 power supply. Press but...

Question: I have a hot water circulating pump: 115V AC 0.4A. I want to be able to turn it on from 3 different locations within the house and have it turn itself off after 2 to 3 minutes. Do you have any equipment which will do this? Answer: We think this product may be you want – Time Delay module (S1DA-AC220-ANT2 & CB-2). The receiver is relay output (normally open and normally closed). Power supply for the receiver and the water pump are different. That means it will not cause electromagnetic interference during water pump operation. With the external extend antenna, the RF signal can pass through walls and doors as well as floors. The wiring diagram is shown below. The water pump will be connected to normally open terminals “B&C”. After wiring, press buttons of “＋” and “－” on the timer, adjust delay time from 0 second to 99 hours. “H” is Hour, “M” is Minute, and “S” is Second. As you said, we set 3 minutes. So we set “M 0 3”, it means the delay time is 3 minutes....

Do you want to use one existing device to control another device remotely? Maybe that will be more convenient to you on some special ccasion. In fact, we have a completely new product low voltage triggered great range transmitter of CB-2V which is applied for one device controlling another device. This transmitting module will be triggered by DC power 5~28V input. We really hope this kind of remote can satisfy customers’ needs. We think our product can meet his need. According to his requirement, that transmitter can work   with dc 12V 1 channel latched long range receiver model of 0020522 S1L-DC12-ANT2. He said that the relay, which is activated by receiver, needs low voltage and current. Working voltage range of relay can be DC 0~28V.  So this receiver is more favorable for him.     Let’s study the wiring diagram. That is fairly simple. Existing device is connected to the positive and negative terminals of the transmitter. The device being contr...

A man needs a remote switch that will operate 3 12V DC light circuits or outlets. He wants to control traffic lights, Circuit 1 Red Light, Circuit 2 Green Light, Circuit 3 Yellow light. When green is on, red and yellow are off; when red is on, yellow and green are off; when yellow is on, green and red are off. We would like to recommend a  4-channel remote control kit . Remote distance is about 100 meters. Let’s do a demonstration of this remote control. First, we should prepare some material for this demonstration. 1×transmitter 1×receiver 1×solderless breadboard 1×red led indication light 1×yellow led indication light 1×green led indication light some lines DC 12V power supply Step 1: Connect three led indication lights to the solderless breadboard and connect them to the receiver. Step 2: Connect to 12 V power supply. Step 3: Operation Press button 1, switch on red light and turn off other lights. Press button 2, switch on green light and ...

Remote control kit was purchased by someone recently. He said that he was so happy with the items because of its good performance. What’s more, he also satisfied with our fast delivery and product tracking service. He said that it is more importantly for remote control kit is to work well even in his steel shed garage. For installation of a device controlled by remote controller in his garage, that customer also has tried other brands’ RF products but none of them can work as well as this supplier’s The receiver is high power with maximum working current of 30A. It has three working modes which are toggle mode, momentary mode and latched mode. The RF signal can pass through walls, doors, floors, trees and so on. With the external mount antenna, the receiver pairs with long range transmitter-CB-2. Remote control distance of transmitter & receiver set is up to 2000m in open field.Thanks to this external extend antenna design, it enhances RF signal’s trans...

One man has 4 small lighted exterior signs around a pharmacy building and would like to control all four signs to go on and off by a simple RF system switch. He is wondering whether this is possible or not? He can order 4 receivers for light control model of S1X-AC220-ANT2 and one long range remote transmitter CB-4. All lights are respectively installed to each receiver for longer remote distance. The theoretical transmitting distance is 2000m (6000FT) in the open field. Even though in actual operation, it is hindered by trees, walls or other obstacles, or interfered by other signals. It is still enough for the exterior signs around the building. 4 lighted signs should be wired to 4 receivers’ L&N terminals individually. Wiring diagram as shown below: Press button “A”, switch sign 1 on and off. … Press button “D”, switch sign 4 on and off. Online shop:  http://www.carymart.com/