48VFL13
Extech 48VFL13: Controller, PID, 1/16 Din, 4-20Ma Output
Spraying WD-40 Lubricant on a rusty chain helps break it apart for replacement.
Extech 48VFL13: Controller, PID, 1/16 Din, 4-20Ma Output
You can use Super Lube Multi-Purpose Synthetic Grease on pulley systems for less friction.