The classic ELECTRO-LUBER™ was developed in 1982. The ELECTRO-LUBER™ uses an electro-chemical reactor cell which converts electrical energy into safe, inert nitrogen gas. The gas is trapped in a hermetically sealed bellows type gas chamber. ATS Electro-Lube was the first company to use this self-contained automatic lubrication technology; as the gas is produced an internal pressure builds up in the bellows and is applied against the orange piston. The piston then forces the lubricant out of the cylinder and into the point of lubrication. The unit can empty between 15 days to 1 year depending on the setting of the simple user-programmable DIP switch. The selection can be changed or turned off at any time.