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mobile backup power supplies
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Quad Tri-state Buffer IC - 74HC125
Electronic alarm
the HM-10 bluetooth module is widely used with the Arduino and is available in two versions: HM-10C and HM-10S
12V 8-Channel Relay board Digital Multimeter mobile backup power supplies12V 8 Channel Relay board This 12V 8 Channel Relay board meets the safety standard as control areas and load areas have the isolation groove. Optical coupling isolation module. The triggering of the 8 Channel Relay Module is reliable and more stable. The double FR4 circuit board design is a high end SMT process. It has power and relay operation instructions. Relays terminals (C, NC, NO) are accessible through screw terminals which makes wiring up the
US$ 50.00
US$ 18.00
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US$ 448.80