3units! 2 Channel DC 5V Relay Switch Board Module, for Arduino Rberry Pi PIC ARM Sensors This 15” workstation starts at

This 15” workstation starts at 5

3 in diagonal LED backlit HD+ SVA anti-glare (1600 x 900)

Intel Core i5-6300U 2

runs perfectly on programming software

This model is an upgrade from the lower precision HC-SR04

3units! 2 Channel DC 5V Relay Switch Board Module, for Arduino Rberry Pi PIC ARM Sensors This 15” workstation starts at3 units! 5V Relay Module with Optocoupler Low Level Trigger Expansion Board for Arduino 2 channels These relays work great, genuine work horses, with SMD optocoupler isolation, and very stable performance. It can be used as a microcontroller development board module, or as home appliance control. Normally open interface and can be set to high or low triggered by jumper. Maximum load: AC 250V 10A, DC 30V 10A. Trigger current: 5mA Fail safe design, even