RS485 Connector for SEN0642
ratsept 2026-01-30 19:17:05 543 Views4 Replies What is the weatherproof connector used on this product series?
I see that the sensors do come with an adapter cable but if I want to install this far away from my Arduino I need the cabling to be weatherproof all the way down into my IP rated enclosure so I can't just solder a longer cable onto the adapter. I would like to find the exact connector that is used on the adapter and put that onto my own (longer) cable so it would be a nice and clean installation.
Or is it possible to open the sensor and just wire a longer cable directly through the cable gland on the sensor itself?
Hi, sorry for the delayed response.
The public documentation does not currently list the exact model or thread specification of the waterproof connector used with the SEN0642, so we need to confirm this with our product team.
We do not recommend opening the sensor or replacing the cable through the cable gland, as this may damage the sensor and compromise its IP67 sealing.
For an outdoor installation, a safe alternative is to place the supplied connector inside a small IP-rated junction box and extend the four wires using suitable outdoor cable. Please use a twisted pair for RS485 A and B.
We will update you once the exact mating connector specification is confirmed.
Hinar.Joestar Hi, you can search with keyword: M12 4 Pin Straight Panel Mount Aviation Connector
Do you have the exact sensor model or a clear photo of the connector? Weatherproof connectors can look similar while using different pin layouts, thread sizes and seals.
I would avoid opening the sensor, as replacing the internal cable may compromise its IP rating and warranty. The safer approach is to use the matching male/female connector or place the supplied adapter connection inside a small IP-rated junction box, then run a suitable outdoor cable to the main enclosure. Also check the interface type, if it uses I2C, a long cable may cause communication problems even when the wiring is weatherproof. You should check these connector types: https://www.pcbway.com/blog/Engineering_Technical/Which_PCB_Connectors_Are_Best_.html
ahsrab.rifat I’ve run into a similar issue when working with outdoor sensor installations. Finding the exact mating connector is often harder than expected, especially when the connection needs to remain weatherproof over a longer cable run. It may also be worth comparing different electrical plug connector types to find a compatible sealed option without modifying the sensor itself.
Malinn22.wilson 
