Due to State and Federal Law, we sell Syringes and Needles only to the Medical Facilities. The Polar M-Series gives the dedicated exerciser everything they need to reach their fitness goals. Exclusive features like OwnIndexTM, OwnCalTM and OwnZoneTM will help turn any activity into an effective workout. * Exclusive M-series features * OwnIndex - In less than 5 minutes at rest the Polar Fitness test determines your OwnIndex (fitness level) based on heart rate variability, age, height, weight, gender and activity. User can easily track progress over time. * OwnCal - Counts total calories burned during exercise and percentage of calories from fat. * OwnZone Advanced - Automatic intensity guidance with high and low areas of user?s target zone. Includes visible and audible out of zone alarms. * Exercise Reminder - Three days after the last exercise, a silent exercise remider appears every full hour in the display. * Help feature - On screen directions. * The M92ti model has Key features: Polar Fitness Test * OwnZone Advanced * OwnCal * You and I * Exercise Reminder * Target Zone w/Alarm * Date/Alarm/Backlight/Stopwatch * This model also includes Data stored in memory: Total Exercise Time * Time in Zone * Average HR * Total Calories * %of Fat Burned * Own Index *