These
Fully Waterproof connectors are available in 2 and 3 wire types

2 way grease filled splicing terminals widely used in the Telecom industry. Resistant to moisture and other environmental agents, once crimped a grease compound encapsulates the wires for complete protection. Wires do not need to be stripped as the crimping action causes insulation displacement connecting them automatically.
These are perfect for joins in small 26-19 AWG multi core cables such as wind vanes, sounder transducers, and instruments.Simply push the wires into the housing (no need to strip the wires first) and squeeze with tight with pliers.
Approvals: LN363.