Module de relais 4 canaux (avec couplage de lumière) 12 V Radio It is an integrated pulse

It is an integrated pulse oximetry and heart rate monitor sensor solution

3V à 5V DC (il y a un selecteur sous la forme d'un Jumper à positionner en position 5V ou 3

NRF24L01+PA+LNA with Antenna 1100 Meters

AM2302 output calibrated digital signal

BLK – Backlight Control

Module de relais 4 canaux (avec couplage de lumière) 12 V Radio It is an integrated pulse4 Road Channel Relay Module (with light coupling) 12V Product Description: 100% brand new and high quality This is a 12V 4 Channel Relay interface board Be able to control various appliances, and other equipments with large current It can be controlled directly by Micro controller (FOR UNO , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) 12V 4 Channel Relay interface board, and each one needs 50 60mA Driver Current Equiped with high current relay,