Black ESP32-DEVKITC Development Board Backboard 4-Channel 5V Relay Board 04 mg/L - 4 mg/L

04 mg/L - 4 mg/L Alcohol Concentration Operating Voltage 5V DC Heater Voltage 5V AC/DC Heater Power Consumption <= 750 mW Output Type Analog (A0) and Digital (D0) Digital Output TTL level with onboard comparator and adjustable potentiometer Preheat Time ~20 seconds (recommended 24-48 hours for first use calibration) Sensitivity Adjustment Onboard trimmer potentiometer for digital threshold tuning Indicator LEDs Power LED and Digital Output Trigger LED Operating Temperature -10 degreesC to 50 degreesC Operating Humidity <= 95% RH (non-condensing) Board Dimensions ~32 mm x 20 mm (compact breakout module) Mounting M3 mounting hole for secure installation Interface Pins VCC

This device combines advanced health monitoring sensors with a sophisticated analog-digital hybrid display

What warranty coverage do I get

Reliable performance in 3-cell series configurations

it is not recommended for diving or high-pressure water sports

Black ESP32-DEVKITC Development Board Backboard 4-Channel 5V Relay Board 04 mg/L - 4 mg/LBlack ESP32 DEVKITC Development Board Backboard