Features High Durability And Low Power Consumption: Designed for battery-powered equipment, this module ensures reliable performance while minimizing energy usage for longer operational life Advanced Air Quality Monitoring: Features a metal oxide sensor for accurate indoor air quality assessment, utilizing a built-in 8-bit MCU for efficient data processing Quick And Easy Installation: The straightforward design of this arrays module allows for hassle-free setup, eliminating the need for complicated installation procedures Precise Sensor Readings: Integrated 12-bit digital conversion provides accurate sensor readings, enhancing the performance of your electrical applications with reliable data output Confidence In Quality Assurance: Built to high standards, this transistor module guarantees dependable operation, allowing you to use it confidently in various projects Features: 1、The product quality and durability are very good, the power consumption is very low, used in battery‑powered equipment. 2、Metal oxide sensor is used to monitor indoor air quality, built‑in 8‑bit MCU to execute the first level algorithm. 3、Integrated 12‑bit for sensor reading and digital conversion, I2C interface can be directly connected to the host system. 4、Darlington transistor arrays module installation is simple, which not require particularly complicated s. 5、No extral step is required, transistor arrays module's quality is guaranteed, you can use it with confidence. Specification: Item Type: Darlington transistor arrays module Model: ULN2803A Output Voltage: 50V Rated Current Collector: 500mA Color: Purple Package List: 2 x Darlington Transistor Arrays Module Package List 2 x Darlington Transistor Arrays Module