PX4Flow - Where and when to buy?

When will the PX4Flow be available again? Does anyone know where or when I can buy one please?

Thanks

There seems to be a bit of a supply issue with these but we are having another batch made and should have more in stock in about 2 weeks.

http://www.unmannedtechshop.co.uk/px4flow-cam-optical-flow-sensor.html

Best to sign up to receive a notification to know when its back in stock