I have a few Fobo tire pressure monitors to sell. Some are new and never used. Some are used but in perfect working order. All have new batteries and ready to install and link to the Fobo app. I will sell them for $25 each plus $10 shipping no matter how many you want. No shipping cost if you are local and want to stop by and get them. Bike, Trike, trailer etc. One for each tire, you can add one on the rear air shock port of Spyder F3T and L to monitor air in that too. Let me know how many you want, I can take paypal for payment and will furnish tracking information on shipment.