Certification : CE,FCCWorking Frequency : 2.4GHzModel Number : MS88SF3Port Number : 48Type : BLEBluetooth version : 5.1Chipset : Nordic nRF52840 (Optional nRF52833)GPIO : 48Flash : 1MBRAM : 256KBTransmission power : Max. +8dBmAntenna : PCBOperation Voltage : 1.8-5.5VFrequency2400-2483MHzMax Output Power+8dBmSingle Power Supply1.8-5.5VGPIO Quantity48Module Size18.5*12.5*2mmOperating Temperature Range-40 to 80 degree CesiusFlash Memory/RAM1M/256 KBMCU32-bit ARM CortexTM M4 CPUAntenna TypePCBRange1Mbps: up to 250 meters in open space125kbps: up to 300 meters in open spaceReceiver Sensitivity-96 dBmTX power+8dBm to -20dBmCertificationEPL/QDID,FCC,CE,IC,TELEC/MIC,RCM,WPC,RoHS, REACH