These are high quality sealed Double Pole - Double Through (DPDT) relays. This relay's coil is rated for 5V. The nominal operating current is 80.6mA so it will need additional circuity to close the relay with a microcontroller like an Arduino or SBC such as a Raspberry Pi or BeagleBone Black.
These are high quality sealed Single Pole - Double Through (SPDT) relays. This relay's coil is rated for 5V.
TF02 highly optimizes the energy system, product structure, fusion algorithm, and shell material so as to achieve a 22-meter-long range and a more stable ranging performance.
This is a small tracked robot equipped with 42mm motors, a motor controller, and Spektrum remote control. This is a customized prebuilt version of TP-230-042 with added track brackets.