3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation Pixhawk2 PWM Frequency: 16-128KHz

PWM Frequency: 16-128KHz

and their mounting hole measure 4mm across

Scrolling for specs like you're avoiding chores

Even they look almost the same outside

3-Ch Relay Expansion Board Designed For Jetson Nano, Optocoupler Isolation Pixhawk2 PWM Frequency: 16-128KHzThis environment sensors module gives Jetson Nano Developer Kit the ability to collect environment data like temperature & humidity, air pressure, ambient light intensity, VOC, IR ray, UV ray, etc. It can also be used to build a robot that can detect motion and orientation. Features Standard 40PIN GPIO header, directly pluggable onto the Jetson Nano Incorporate quality relay component, max load: 5A 250V AC or 5A 30V DC Optocoupler isolation, prevent