Accessory for Ecowitt WS90 Weather Station — Shelly PbS Extension Cable and DC 12V 1A Power Adapter

The Shelly PbS accessory bundle for the Ecowitt WS90 weather station includes a 20 m extension cable and a DC 12V 1A power adapter designed to provide extended sensor placement and a stable low-voltage supply. This combination allows the WS90 outdoor sensors to be positioned further from the base unit while maintaining continuous operation via a dedicated 12V DC source, suitable for home and small-site weather monitoring setups.

Advantages

The extension cable increases placement flexibility for outdoor sensors, allowing measurements from locations up to 20 meters away from the main unit without relying solely on the station's original cabling. The DC 12V 1A adapter supplies a consistent, low-voltage power source optimized for uninterrupted sensor performance and reduced risk of power-related data gaps. Together they simplify installation, reduce the need for intermediate power solutions, and are compatible with standard low-voltage outdoor sensor requirements.

Suitable for

• Home weather monitoring where sensors must be located away from the base unit
• Small gardens, patios or residential roofs requiring extended cable length
• Setups that need a dedicated 12V DC power source to ensure stable sensor operation

When it may not be suitable

This accessory bundle is intended for systems that accept an external 12V DC supply and a wired sensor connection. It may not be suitable for setups that rely exclusively on battery-powered or fully wireless sensors, or for installations where longer cable runs beyond the provided 20 m are required. Environments with extreme mechanical strain, frequent water exposure without additional protection, or incompatible connector types will also limit usability.

Key specifications

• Extension cable length: 20 meters
• Power adapter output: DC 12V, 1A
• Power adapter input: designed for standard mains voltage (region dependent)
• Cable type: outdoor-rated extension for sensor connection (shielding and conductor details per manufacturer)
• Intended use: external sensor extension and low-voltage power supply for weather station sensors

How to use

Connect the extension cable between the WS90 sensor housing and the base unit or existing cable run following the station's wiring conventions and connector orientation. Plug the DC 12V 1A adapter into a protected mains outlet and attach its DC output to the weather station or sensor power input marked for 12V DC. After connections are secured, verify power presence and sensor communication with the WS90 base unit or its software interface. Route the cable to avoid sharp bends, excessive tension, and direct exposure to standing water; use cable clips or conduit as needed for protection.

What to consider before purchase

• Confirm that your WS90 setup accepts an external 12V DC power input and the connector type matches
• Measure the required cable run to ensure 20 m is sufficient for desired sensor placement
• Check local mains voltage compatibility for the power adapter or need for a plug adapter
• Plan for weatherproofing and secure cable routing in outdoor installations

Recommendations

For reliable measurements, mount sensors at recommended heights and avoid running the extension cable near large sources of electromagnetic interference. Use a weatherproof junction or conduit at the connection points and verify the adapter polarity before finalizing connections.