Weewooday 15 Pieces 5V Relay Module 1- Channel Relay Control Boards with Optocoupler Isolation High and Low Level Trigger Expansion Board
Relay module: this relay board supports high and low level trigger and can be controlled by any 5V digital output of the microcontroller.
Parameter details: maximum load of normally open interface: AC 250v/ 10A, DC 30v/ 10A, trigger current is 5mA.
The 5v relay control board adopts SMD optocoupler isolation, which has strong driving ability and stable performance.
Practical design: with fault-tolerant design, the relay module will not operate even if the control line is disconnected.
All interfaces can be provided through directly connected terminal s since the humanized interface design, it is very convenient to use.
High compatibility: the relay module can be directly controlled by the 5V logic signal provided by the microcontroller, suitable for 8051, Raspberry Pi, PIC, DSP, ARM, AVR, MSP430, TTL logic, etc..
Wide application: this 5V relay board can be applied with Raspberry/ CNC machine/ ARM/ PIC/ AVR/ MCU/ PS4 and more.
Keenso Relay Race Baton, 3 Pcs Aluminum Alloy Track and Field Relay Baton Sports Relay Race Baton Track and Field Sprint Match Batons(Blue)
【Premium Quality】: This 100% brand new running relay baton is amde of high quality aluminum alloy material, which is non‑toxic, harmless, wear‑resistant and durable. It is not easy to break, has reliable quality and can be used repeatedly..
【Comfortable to Grip】: The aluminum relay batons with reasonable size, which is comfortable to grip, suitable for the hand shapes of people of all ages..
【Hollow Design】: The relay batons adopt hollow design, which can effectively reduce weight and reduce resistance..
【Bright Color】: The running relay baton with bright color, and it can be used indoors and outdoors, which is eye‑catching and easy to distinguish..
【3Pcs / Set】: 3pcs of relay baton are available for use, the track relay baton is an important accessory for sports occasion, suitable for track and field sprinting..
Retevis RT97 Portable Radio Relay Kit, Custom Frequency Full Duplex Radio Base Station(1 Pack) and Out of Box Retevis RT29 Long Range Walkie Talkies(2 Pack),16 Channel Rugged Radio Relay with Antenna
we can customize the corresponding frequency according to your needs.
Equipped with out of the box RT29 long range handheld walkie talkie.
4 channels are relay frequencies that can be directly connected to RT97.
the remaining 12 channels are RT29 walkie talkie frequencies.
install the relay antenna at a certain height such as the roof.
it can greatly expand the communication range of the handheld walkie talkie.
break through the communication limit of the walkie talkies.
you just need to plug the antenna through the coaxial cable or directly to the radio relay.
then you can use the handheld walkie talkie to connect the radio relay.
you only need one antenna to operate the base station.
GRV8-03 Monitoring Relay, 176V-552V Ultrasmall Three Phase Voltage Relay Voltage Monitoring Relay Adjust for Mobile Device Connection Control(M265)
Small Size: 2021 Improved Version, This 3-Phase Monitoring Relay has a smaller compact size for easier and convenient use and install, and the size of the Monitoring Relay is 8.1 x 6.7 x 1.75 cm/3.1 x 2.6 x 0.6 inch, you can install it on any places around the room, saving a lot of place.
Multi-functioanl: This DPA51CM44 3-Phase Monitoring Relay has a widely use on the electric filed, and it can be applied to motor protection, elevator, air conditioning system, power system and other industries, very helpful tool during daily life.
Work Well: DPA51CM44 3-Phase Monitoring Relay features with strong anti-interference performance, so it helps maintain a constant and efficient work of the motor, it will provide an excellent performance during the working process.
3-Phase Design: This Current Monitoring Relay is designed with 3-Phase Monitoring Relay to provide a correct phase sequence, without neutral, phase Loss and Incorrect phase sequence, so it can detect when all phases are present and have the correct sequence.
LED Indication: This DPA51CM44 Monitoring Relay features an LED indication for easier installation and trouble shooting, which permits a maximum degree of protection to be achieved for machines, plants and systems, and avoid far more significant....
