NodeMCU Baseboard ESP8266 Serial Port Baseboard Lua WIFI Development Board F2M Jumper Wires (20cm) 40pcs Features both analog and digital

Features both analog and digital outputs for seamless integration with Arduino

Alcohol Vapors Operating Voltage 5V DC Output Type Analog (AO) + Digital (DO) with adjustable threshold Onboard Comparator LM393 with potentiometer for sensitivity adjustment Detection Range 25-500 ppm (varies by target gas) Preheat Time ~20 seconds for stable readings Digital Output Indicator LED indicator for threshold trigger Power Indicator Onboard power LED Mounting 4 mounting holes for easy installation Interface Pins VCC

3V regulated supply

synchronize with NTP servers over WiFi at least weekly

Device Connectivity - Compatible with cameras

NodeMCU Baseboard ESP8266 Serial Port Baseboard Lua WIFI Development Board F2M Jumper Wires (20cm) 40pcs Features both analog and digitalNodeMCU Baseboard ESP8266 Serial Port Baseboard Lua WIFI Development Board