HC-SR501 is based on infrared technology, automatic control module, using Germany imported LHI778 probe design, high sensitivity, highreliability, ultra-low-voltage operating
HM-R series FSK receiver moduleFEATURESHighly integrated, small sizeHigh sensitivity, low power consumptionFSK technology, suitable for replacing ASK modulesLess interference, longer
HM-R series FSK receiver moduleFEATURESHighly integrated, small sizeHigh sensitivity, low power consumptionFSK technology, suitable for replacing ASK modulesLess interference, longer
HM-R series FSK receiver moduleFEATURESHighly integrated, small sizeHigh sensitivity, low power consumptionFSK technology, suitable for replacing ASK modulesLess interference, longer
HM-T series FSK transmission moduleFEATURESHIGHLY INTEGRATED, SMALL SIZEHIGH SENSITIVITY, LOW POWER CONSUMPTIONFSK TECHNOLOGY, SUITABLE FOR REPLACING ASK MODULESLESS INTERFRENCE, LONGER
HM-T series FSK transmission moduleFEATURESHIGHLY INTEGRATED, SMALL SIZEHIGH SENSITIVITY, LOW POWER CONSUMPTIONFSK TECHNOLOGY, SUITABLE FOR REPLACING ASK MODULESLESS INTERFRENCE, LONGER
HM-T series FSK transmission moduleFEATURESHIGHLY INTEGRATED, SMALL SIZEHIGH SENSITIVITY, LOW POWER CONSUMPTIONFSK TECHNOLOGY, SUITABLE FOR REPLACING ASK MODULESLESS INTERFRENCE, LONGER