Free Delivery
On all orders over £150

We wont be beaten on price
We don't want that to be the reason you shop somewhere else, simply let us know the price, and we'll match it

Money back guarantee
Every product on Mendip Weather is backed with a 14 day money back guarantee

We accept all major payments
Paypal, Visa, Mastercard, Maestro and American Express

Davis WeatherLink for Alarm Output (with Connector Block, serial port)

Davis WeatherLink for Alarm Output (with Connector Block, serial port) - 6544
Now you can turn heaters, fans, and other devices on or off using the Davis Weather 6544 WeatherLink for Alarm Output and your Vantage Pro2. The software walks you through the choices quickly and easily yet the possibilities are almost unlimited! For each of four outputs, you can enter up to eight different weather parameters. Enter threshold values for each, select from nine different test conditions, and link the entries together as you choose. The connector block provides the interface between your weather station and an electrical device. For high-power devices, you may also need to add electrical relays (not supplied by Davis).

Write a review

Please login or register to review

Are you looking for a manual?


Head over to our Knowlege Base section of the site where you will find manuals and Help Guides


Weather Station Guides

Hand Held Guides

Gifts and Clocks Guides

We deliver to UK, Northern Ireland, Europe and to worldwide.  

How much will delivery cost me?



Express Shipping


Standard UK Shipping usually 2 to 4 days

 £4.25, above £150.00: Free

Saturday Delivery


Pre 12 Next Working Day Delivery




World Wide Zone 1


World Wide Zone 2


  • Views: 7705
  • Brand: Davis
  • Product Code: 6544
  • Availability:
  • £192.86
  • Ex Tax: £160.72

Davis Spring offer


3 Year Warranty all Davis Vantage Vue and VP2 weather stations purchased between the 1st March 2018 and the 31st March 2018.*

Why buy from us

  • 14 Day Money Back Guarantee
  • Family Run Business since 2001
  • Most items supplied from Stock

Tags:6544 0116988209 Davis Davis, WeatherLink, for, Alarm, Output, (with, Connector, Block, , serial, port), Davis WeatherLink for Alarm Output (with Connector Block, serial port) 6544