RV Alarms and Tire Monitoring Systems

I am looking for both of these items and finding that they can run from the excessively cheap to the over the mountain expensive. Alarms running for 8.95 to 949.00. So anybody using one now, what brand, and was the price worth it?

Same on TPS I found the Accupressure which one could just look at in passing for less than 100.00 up to the 22 tire monitoring systems runing in the 600-700 dollar range.
Again any one using one now, what brand, and was the cost worth it.

Thanks for any feedback

I've been using the Doran Pressure Pro TPMS for almost 5 years. It's saved me (warned me) a few times of pending flats or blowouts. I have it for 10 tires (6 on motor home and 4 on toad). Yes it is over $600, but it's not the most expensive.

I purchased this after seeing the results of a friend having a toad (towed) with a blow out and they didn't know about it for many miles. Lots of damage!

I'm not sure what you mean by "RV Alarm". A security alarm?