Can the allowable ranges of tire pressure be programmed for each wheel separately?

No, the high and low pressure alarm is unique for all tires.

I have the SRT670 fitted to my CanAm Spyder and it works great. Can the valves be connected to your Sykik App

No, SRTP670 uses radio signals for more stable connection. The APP is on a Bluetooth connection.

What kind of battery does the monitor use

Display is equipped with a built-in rechargeable battery. Every 8-12 months, you will need to charge the battery using the provided USB cord

Are other views available of the monitor? How does it mount?

On one side you have 2 buttons to control the functions. On the back, there is a 1/4" nut hole for mount. The unit comes with handlebar mount for request round bars. Flat mount is also available for flat surfaces such as , gas tank, flat handle bars, faring, dash board Ana such

Can the temperature be displayed in Fahrenheit? Is the battery in the monitor rechargeable? If so, how long does a charge last before one need to recharge?

The temperature can be changed to Fahrenheit and pressure to PSI. The monitore includes a rechargeable battery that power the display for about 9 months.

Are the receivers waterproof?

Yes, all parts are waterproof