All sensors are sent programmed for buyers vehicle. Keep in mind some vehicle need tire pressure system relearning tool to be flashed on vehicles. 4 MAX SENSOR MAX SELECT PRO TPMS SENSOR RUBBER. Quantity in package: 4. MAX SENSOR MAX SELECT PRO TPMS SENSOR. F-rated 12-ply Tire Friendly. 37+ Tire Friendly. Programming time- 10-15 sec. Upgraded IC Chip and Hardware Design-Optimized Power Consumption.