MQ-135 Gas Sensor

Product Description

✅ General Specification: ➡️ Sensor Type: Air Quality / Gas Sensor ➡️ Model: MQ-135 ➡️ Target Gases: NH₃ (Ammonia), NOx, Alcohol, Benzene, Smoke, CO₂ (approximate) ➡️ Operating Voltage: 5V DC ➡️ Heater Voltage: 5V ➡️ Analog Output: Yes ➡️ Digital Output: Yes (with onboard comparator module) ➡️ Sensitivity Range: 10 – 1,000 ppm (approx.) ➡️ Warm-up Time: ≥ 20 seconds (initial stabilization recommended; 24 hrs for best accuracy) ➡️ Operating Temperature: -10°C to +50°C ➡️ Operating Humidity: ≤ 95% RH ➡️ Module Interface: VCC, GND, AO, DO ➡️ Compatible With: Arduino, Raspberry Pi, ESP8266, ESP32, STM32 ➡️ Applications: Air quality monitoring, pollution detection, CO₂ estimation, smart home systems, environmental monitoring, DIY electronics projects