8ch relay module with optocoupler

HM-R series FSK receiver moduleFEATURESHighly integrated, small sizeHigh sensitivity, low power consumptionFSK technology, suitable for replacing ASK modulesLess interference, longer

HM-TRP Series 100mWTransceiver modulesFeatures
 Low cost, high performance , high reliability
 FSK modulation, 2-way half –duplex communication, strong anti-interfere
 433/470/868/915MHz

UNIVERSAL ISM BAND FSK TRANSCEIVER MODULERFM12B is a low costing ISM band transceiver module implemented withunique PLL. It works signal