Product overview For the UT 100 pulse oximeter Reusable For measurements on the finger Available as a digital or analogue version 1 piece Paediatric SpO2 Sensor This paediatric SpO2 sensor extends your UT 100 pulse oximeter to allow for SpO2 monitoring of children. This reusable SpO2 sensor is used for finger measurements. Product Details SpO2 sensor for children For the UT 100 pulse oximeter Reusable Measurement taken on finger 1 piece Please Note: The SpO2 sensor is available in a «digital» and «analogue» version. The digital sensor can be used with all common UT100 pulse oximeters that were produced before May 2018. The analogue sensor is required for all that were produced after May 2018. Please check the serial number on your device before purchasing. All pulse oximeters with a serial number starting from UT1001806001D require an analogue sensor. Composition of the Serial Number: UT100 = Model 18 = Production yeahr 06 = Production month 001D = Charge number