Bought another brand that didn't have ID codes, 2 tire shops couldn't figure out how to read codes so returned and bought this set. Codes are stamped onto each sensor, connected to Techstream and programmed in minutes. They were live before I fitted them to the wheels to make sure they worked. Took them to a tire shop, put them on new rims, mounted and balanced the tires, threw them on the 4runner and about 15 seconds later the TPMS light on the dash went out! Techstream's pressure and temperature readings appear to be within normal ranges. two pounds per square inch of my digital gauge, and the temperature in the garage was about the same to within a few degrees, as reported by Techstream. / Wheel balancing, pretty easy with one of those cheap Techstream cables and cracked software!