Methods and devices for monitoring machine fluids

A device mounted to a machine, the device being configured to monitor one or more fluid parameters of the machine, wherein the device comprises:

• (a) a printed circuit board assembly (PCBA);
• (b) a spacer that includes a power connector having a first end configured to be connected to an external power source, and a second end, and one or more sensor connectors, wherein the spacer has an inner cavity, a first end connected to the cover, and a second end connected to a manifold, wherein the second end has an inner, annular surface, and the inner, annular surface compresses an O-ring on the manifold to create a seal configured to keep particles and moisture out of the inner cavity of the spacer and out of an interior of the manifold, wherein the manifold further comprises a first fluid intake port, a second fluid intake port, a first fluid exit port, a second fluid exit port, a first fluid pathway between the first fluid intake port and the first fluid exit port, a second fluid pathway between the second fluid intake port and the second fluid exit port and connected to the first fluid pathway, and a manifold block comprising a block fluid exit port, a block fluid exit pathway, and a block exit connector port that aligns with and communicates with the first fluid exit port, whereby fluid exiting the manifold passes through the first fluid pathway and out of the manifold block;
• (c) a wire having a first end connected to the second end of the power connector and a second end connected to the PCBA;
• and
• (d) one or more sensors, wherein each of the one or more sensors is connected to one of the one or more sensor connectors and each of the one or more sensor connectors that is connected to one of the one or more sensors is also connected to the PCBA by a wired connection.