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RFID Reader/Writer RC522 SPI S50 with RFID Card and TagFeatures-Highly integrated analog circuitry to demodulate and decode responses.Supports ISO/IEC 14443 A/MIFARE.Typical operating distance in reading/Write mode up to 50 mm.Supports ISO/IEC 14443 A higher transfer speed communication up to 848 kB..

Digital Temperature Module For Arduino AVR PIC DIY MakerFeatures-Using the NTC thermistor sensor,Good sensitivitythe comparator output signal clean waveform is good, driving ability than 15mA.the output format: Digital switching output (0 and 1)Power supply: 3 – 5V..

Reed Switch 2 x 14 mm Magnetic Control Switch -Normally Open Contact-Pack of 10 Pcs.Features-Small Module.Very easy to use.Direct connection in the circuit...

DHT-11 Digital Temperature And Humidity SensorFeatures-Low power consumption.Relative humidity and temperature measurementAll calibration, digital outputExcellent long-term stabilityNo additional componentsLong distance signal transmissionUltra-low power4-pin packageCompletely interchangeable..

XH-W3001 DC 24V 240W Digital Temperature Controller Microcomputer Thermostat SwitchFeatures-Easy to installOutput type: Direct outputOutput capacity: max. 10 AUp key: Press once to display the start temperature. Long press to set start temperature.Down key: Press once to display the stop temperature..

Tplink 840N wireless N Router/ Tplink 850N wireless N Router with power adaptor ..