Philips CL Wireless ECG / IUP Transducer (866077)
The Philips Avalon CL Wireless ECG/IUP Transducer (866077) is a cableless, battery-powered transducer that captures maternal ECG, fetal ECG (DECG), and intrauterine pressure (IUP) on a single device — giving labor and delivery teams three internal and maternal measurements without tethering the patient to the monitor. Paired with the Avalon CL Base Station (866074) and Avalon FM20, FM30, FM40, or FM50 fetal monitors, it delivers the same measurement performance as wired Smart Transducers while letting mothers walk, shower, or reposition during labor with an operating range of up to 100 m (300 ft) line of sight.
The 866077 is watertight for underwater monitoring, weighs only 0.6 lbs (0.27 kg), and docks directly into the Avalon CL base station for automatic assignment and battery recharging — no patient cables, no separate charger. IPR Medical sells, buys, repairs, and stocks parts and accessories for the Philips Avalon CL system, including transducers, base stations, belts, and replacement batteries. Contact us at 855-477-8866 or cs@iprmed.com.
Philips Avalon CL Wireless ECG/IUP Transducer (866077) Specifications
The Philips 866077 is the cableless ECG/IUP transducer in the Avalon CL Fetal Transducer System. It connects to the Avalon CL base station (866074) for use with Avalon FM20/FM30/FM40/FM50 fetal monitors, providing maternal ECG, fetal ECG (DECG), and intrauterine pressure measurement without patient cables. All specifications below are sourced from Philips OEM documentation.
| OEM Part Number | 866077 (Philips reference 453564423431) |
| Device Type | Cableless ECG/IUP transducer |
| Measurements | Maternal ECG (MECG), fetal ECG (DECG), and intrauterine pressure (IUP) |
| Compatible Base Station | Philips Avalon CL Base Station (866074) |
| Compatible Fetal Monitors | Philips Avalon FM20, FM30, FM40, and FM50 |
| Required Monitor Software | Avalon fetal monitor software release J.3 or higher |
| Operating Range | Up to 100 m (300 ft) line of sight from base station |
| Wireless Technology | Philips IntelliVue Instrument Telemetry (Short-Range Radio, IEEE 802.15.4) |
| System Capacity | Up to 4 CL transducers and 2 IntelliVue CL Pods per base station |
| Power Source | Rechargeable Lithium-Ion battery (recharged via base station dock) |
| Water Protection | Watertight; rated for underwater monitoring (bath/shower use) |
| Applied Part Classification | Type CF, defibrillation-resistant patient connection |
| Connector | Integrated patient lead cable with connector for MECG/DECG/IUP sensors |
| Diameter | 3.27 in (83 mm) |
| Weight | Approximately 0.6 lbs (0.27 kg) |
| Materials | Latex-free housing; sealed non-user-serviceable enclosure |
| Intended Use | Continuous antepartum and intrapartum fetal and maternal monitoring in a healthcare facility |
| Prescription Status | U.S. federal law restricts this device to sale by or on the order of a physician |
IPR Medical buys, sells, repairs, and stocks parts for the Philips Avalon CL Wireless ECG/IUP Transducer (866077). Contact us at 855-477-8866 or cs@iprmed.com.
Trademark Notice: Philips, and all other brand names, model names, and part numbers shown are trademarks of their respective owners and are used on this page only to identify the original manufacturer’s equipment offered here, consistent with nominative fair use. This listing is offered by IPR Medical, an ISO 9001:2015-certified independent service organization, and is not sponsored by, affiliated with, or endorsed by Philips.
Three measurements, one cableless transducer
The Avalon CL ECG/IUP Transducer (866077) is unique in the Avalon CL family because it handles three different measurements from a single device. With the appropriate lead set or catheter connected to its integrated patient cable, the same transducer captures maternal ECG for cardiac rhythm monitoring, direct fetal ECG (DECG) via a scalp electrode for the most reliable fetal heart rate signal available, and intrauterine pressure (IUP) via an internal catheter for precise uterine activity measurement. This consolidation reduces the number of transducers clinicians need to stock, charge, and track on the L&D floor.
Cableless mobility for labor and delivery
Freedom of movement during labor is linked to patient comfort, shorter labor times, and better overall experience. The 866077 eliminates the patient cable entirely — the transducer communicates wirelessly with the Avalon CL Base Station (866074) over Philips IntelliVue Instrument Telemetry at ranges up to 100 m (300 ft) in line of sight. Mothers can walk the halls, use a birthing ball, shower, or labor in a tub without losing the fetal or maternal trace. Because the transducer is watertight, underwater monitoring is explicitly supported for hydrotherapy and water birth protocols.
Works with the entire Avalon FM family
The 866077 is part of the Avalon CL system and requires the Avalon CL Base Station (866074). That base station in turn connects to any fetal sensor socket on the Philips Avalon FM20, FM30, FM40, or FM50 fetal monitor — or to the rear telemetry connectors on the FM40 and FM50. Avalon fetal monitor software release J.3 or higher is required. Up to four CL transducers and two IntelliVue CL Pods can be assigned to a single base station, which means a complete cableless kit can monitor twins or triplets plus maternal SpO2 and NBP simultaneously from one hub.
Automatic assignment and charging
Setup is plug-and-play: dock the 866077 in any slot on the base station and it is automatically assigned, paired, and recharged. A green or yellow LED on the transducer confirms when it is ready for use. The internal Lithium-Ion battery powers the device wirelessly throughout labor; charge status is reported to the fetal monitor, and low-battery, out-of-battery, loss-of-radio, and malfunction alarms are all built into the Avalon CL system so clinicians are alerted before the trace is interrupted.
Patient safety and construction
The 866077 is a Type CF applied part, meaning its patient connection is rated for direct cardiac application and is defibrillation-resistant — an important consideration given the maternal ECG and DECG use cases. The housing is latex-free and sealed at the factory; the transducer is not user-serviceable, and battery replacement requires the dedicated Philips CL transducer battery replacement tool used by authorized technicians. IPR Medical handles this service in-house on customer units.
Why clinicians choose the Avalon CL system
The Avalon CL family — base station (866074), Toco+ MP transducer (866075), ultrasound transducer (866076), and this ECG/IUP transducer (866077) — delivers the same monitoring performance as wired Smart Transducers without the cables. That means Smart Pulse cross-channel verification for distinguishing maternal from fetal heart rate, twins and triplets support, and the familiar Avalon interface clinicians already know. For facilities standardizing on Philips fetal monitoring, the 866077 is the internal-monitoring and maternal ECG workhorse of the cableless kit.
IPR Medical — sales, repairs, parts, and service
IPR Medical sells refurbished and patient-ready Philips Avalon CL transducers and base stations, and we buy surplus or decommissioned units from facilities upgrading their fetal monitoring fleet. Our service team performs battery replacements, housing seal service, front-end repair, and functional testing on the 866077 using Philips-specified procedures and test equipment. We also stock replacement belts, patient cables, DECG lead sets, IUP catheter adapters, and other consumables used with the Avalon CL system — so a single call covers the transducer, the accessories, and the service that keeps it running.
IPR Medical buys, sells, repairs, and stocks parts for the Philips Avalon CL Wireless ECG/IUP Transducer (866077). Contact us at 855-477-8866 or cs@iprmed.com.
Trademark Notice: Philips, and all other brand names, model names, and part numbers shown are trademarks of their respective owners and are used on this page only to identify the original manufacturer’s equipment offered here, consistent with nominative fair use. This listing is offered by IPR Medical, an ISO 9001:2015-certified independent service organization, and is not sponsored by, affiliated with, or endorsed by Philips.
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Compatible Parts and Accessories
IPR Medical stocks a range of compatible parts and accessories for the Philips Avalon CL Wireless ECG/IUP Transducer (866077). The sections below cover the most commonly requested components. Contact us at 855-477-8866 or cs@iprmed.com to confirm availability, pricing, or compatibility for your specific configuration.
Avalon CL System Components
| 866074 | Philips Avalon CL Wireless Transducer Base Station — required for 866077 operation; supports up to 4 CL transducers and 2 CL Pods |
| 866075 | Philips Avalon CL Toco+ MP Cableless Transducer — uterine activity and maternal pulse |
| 866076 | Philips Avalon CL Ultrasound Cableless Transducer — external fetal heart rate |
| 866077 | Philips Avalon CL ECG/IUP Cableless Transducer — this listing |
Compatible Fetal Monitors
| Avalon FM20 | Mid-tier Philips fetal monitor; connects to 866074 via fetal sensor socket (software J.3+ required) |
| Avalon FM30 | Mid-tier Philips fetal monitor with integrated maternal SpO2; connects to 866074 via fetal sensor socket (software J.3+ required) |
| Avalon FM40 | Advanced Philips fetal monitor; connects to 866074 via fetal sensor socket or rear telemetry connectors |
| Avalon FM50 | Top-tier Philips fetal monitor; connects to 866074 via fetal sensor socket or rear telemetry connectors |
IntelliVue CL Pods (Maternal Vital Signs)
| CL SpO2 Pod | Wireless maternal pulse oximetry pod; dockable on the 866074 base station alongside CL transducers |
| CL NBP Pod | Wireless maternal non-invasive blood pressure pod; enables untethered maternal vitals during labor |
Patient Accessories and Consumables
| Fetal Scalp Electrodes | Single-use DECG electrodes compatible with the 866077 DECG lead interface |
| Maternal Leg Plate Electrode | Reference electrode used with DECG for fetal heart rate derivation |
| Maternal ECG Electrode Set | Single-use disposable ECG electrodes for maternal MECG monitoring |
| IUP Catheter (Compatible) | Intrauterine pressure catheter compatible with the 866077 IUP adapter; single-patient use |
| Transducer Belts (Reusable) | Washable, waterproof abdominal belts for Avalon CL transducers; button-style attachment |
| Belt Buttons | Replacement belt attachment buttons for Avalon CL transducers |
Service and Replacement Parts
| CL Transducer Replacement Battery | Factory-spec rechargeable Lithium-Ion battery; installation requires Philips CL transducer battery replacement tool and qualified technician |
| CL Transducer Battery Replacement Tool | Philips-specified tool used to open and reseal CL transducer housings for authorized battery service |
| Base Station Power Cable | AC mains cable for the 866074 Avalon CL Base Station |
| Base Station Telemetry Interface Cable | Interface cable connecting the 866074 base station to the Avalon fetal monitor |
| Base Station Antenna | Standard antenna for 866074 Avalon CL base station; replacement and extension options available |
IPR Medical buys, sells, repairs, and stocks parts for the Philips Avalon CL Wireless ECG/IUP Transducer (866077). Contact IPR Medical at 855-477-8866 or cs@iprmed.com with service or software questions.
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