The 3-in-1 Temp/Humid/Light sensor is an accessory for the Hydro-X system, designed to provide accurate monitoring of temperature, humidity, and light levels in horticultural environments. It serves as a replacement or spare part for the main controller, which already includes a sensor.

Key features of the sensor include:

1. Built-in Photocell: Detects day/night mode based on light levels, allowing for automated adjustments in lighting schedules.
2. Plug & Play: Easy installation and integration with the Hydro-X system.
3. Output Voltage: Provides a voltage output ranging from 0 to 11.5V, enabling compatibility with various control systems.
4. Maximum Current: Supports a maximum current of 0.2A, ensuring reliable performance under load.
5. Working Environment: Suitable for operation in temperatures ranging from 32 to 122°F, with humidity levels up to 90%.

It's important to note that the sensor should be kept dry and clean to prevent premature failure. Avoid spraying foreign substances or allowing water/condensation to come into contact with the sensors to maintain their functionality and longevity.