Precision Xtra® Blood Glucose Test Strips 100 Strips per Pack (557139_BX) 100/BXDesigned to prevent inaccurate tests and test strip wastage caused by interferences from many common substances and or application of inadequate sample volume Fill trigger prevents the test from starting until an adequate blood sample is applied Simply add more sample within 30 seconds and the meter produces a result, without compromising accuracy 450 result memory, downloading feature and large easy to read display