I have two of these cabled probe therms. Many people are familiar with Trader Joe's which one of the Albrecht brothers own and the other brother has Albrecht Discount more commonly known as Aldi. This therm was on sale at $12.99 at Aldi a couple of months ago so I bought two and they boil tested within two degrees. I saw it for $6.49 today so I got another. They have a three year warranty. The first two have the same frequency so I'm assuming the one I got today does as well so if you use two or more probes at the same time you only need one receiver. The receiver picks up both probes and flashes both probe temps every couple of seconds intermittently. I thought it would be a problem but one showing the CC and the other in the meat was easy to differentiate. The therms have all kinds of pre set temps but I just hold the middle button for five seconds and enter my own temp. Any button pressed shows a blue LED back lit screen for five seconds.
When you reach your set temp the audible alarm goes off continuously for a long time and the screen has a red LED back lit screen. If the target temp isn't reset the screen stays red and the audible alarm keeps cycling.
They have at least a one hundred foot range. I only use therms for smoking so I do not know the limits on the high/low temps other than it tests in ice water and goes over 300*F. Nothing is mentioned on the package as far as limits temp wise or range. The cable is at least four feet long. I periodically calibrate all my therms and I have yet to have a single probe therm fail (within the last five years.).