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DHT22 Module Moisture Sensor

 750
  • Weight: 6 g
  • Working voltage: 3 V - 5.5 V
  • Signal output form: digital signal
  • Temperature measurement range: - 40°c to 80°c
  • Measuring accuracy: 0.5°c
  • The humidity measuring range: 0-100% RH
  • Measuring accuracy: 2% RH
  • Resolution: 16

MQ135 Gas Sensor

 320
  • Its size is 32mm x 22mm x 27mm.
  • It contains an MQ-135 chip.
  • Its operating voltages are 5V DC.
  • It is an analog and digital type sensor.
  • It is sensitive to Ammonia, Sulphide, and Benzene steam.
  • Its detecting range is 100- 1000 ppm.
  • It gives signal output instructions.

RFID Card 125kHz

 120
  • EM4001 ISO based RFID IC
  • 125kHz Carrier
  • 2kbps ASK
  • Manchester encoding
  • 32-bit unique ID
  • 64-bit data stream [Header+ID+Data+Parity]
  • Dimensions: 2.13 x 3.35 x 0.03″ (54 x 85.5 x 0.8mm)