Davis Instruments Weather Envoy Cabled. When used along with a WeatherLink data logger and software package Weather Envoy will collect and store data from the outdoor sensors. Compatible with Vantage Pro2 only; not compatible with original Vantage Pro. Specifications for Davis Instruments Cabled Weather Envoy: Manufacturer: Davis Instruments Color: Black Package Contents: Davis Instruments Cabled Weather Envoy Davis Instruments 6316C: Weather Envoy Cabled