TRx4851A 2.4 GHz IntelliVue Tele TRX, Model Number 862231; Includes Service Numbers 453564052401, 453564052411, 453564052441, 453564052451, 453564166851, 453564166861
The ECG signal from patients being monitored using a Philips TRx4841A and TRx4851A Telemetry Transceiver may not be properly analyzed when it is used with a Philips Patient Information Center iX Release C.02.xx or C.03.01. If this occurs, the Information Center will not display a heart rate or generate, display or annunciate any heart rate or arrhythmia alarms.
The products were distributed US nationwide. Global distribution.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-1766-2020