Jun
Norav Medical’s NR-Series includes several multi-function ECG recorders capable of ambulatory Holter monitoring and (in some cases) performing standard resting ECG tests. These devices are designed to support all standard lead configurations – from 3-lead (using 3, 5, or 7 electrodes for 1–3 channel Holter recordings) up to full 12-lead diagnostic ECG with a 10-electrode cablenoravmedical.com. They are compact, battery-powered units (either using a single AA cell or an internal rechargeable battery) with options for Bluetooth wireless connectivity to enable real-time monitoring and data transfer. Many models include advanced clinical features such as pacemaker pulse detection, thoracic impedance respiration monitoring, and even an accelerometer for patient activity trackingnoravmedical.com. Below, we compare the key NR-series models that offer both Holter recording and resting ECG capabilities, and evaluate which is best suited for a cardiologist’s needs in clinical (in-office resting ECG) and ambulatory (Holter) patient care.
| Model | ECG Leads & Channels | Holter Recording Duration | Battery Type | Wireless | Advanced Features | Approx. Price (eur) |
|---|---|---|---|---|---|---|
| NR-302 – Economic Holter | 3-channel Holter (supports 3, 5, or 7 electrode lead sets; no 12‑lead). | Up to 48 hours (2 days) continuous. | Single AA cell (user-replaceable). | No (USB upload only, no Bluetooth). | – Arrhythmia, ST, QT, HRV analysis. – Pacemaker detection: Yes (records pacer spikes). – Respiration monitoring: No (no impedance sensor). – Accelerometer: No (no activity sensor). | ~€2,000 (device only). |
| NR-314 – 14-Day Holter | 3-channel Holter (supports 3, 5, or 7 electrode lead sets; no 12‑lead). | Up to 14 days continuous. | Single AA cell (user-replaceable). | Yes (Bluetooth + USB for data). | – Arrhythmia, ST, QT, AFib analysis. – Pacemaker detection: Yes (pacer spike analysis). – Respiration monitoring: Yes (thoracic impedance trends ). – Accelerometer: Yes (patient activity tracking). – Audible patient diary (voice memos) supported. | ~€4,800 (with analysis software). (Device only ≈3K–4K) |
| NR-314 “P” – 14-Day Holter (Rechargeable) | 3-channel Holter (supports 3, 4, or 5 electrode lead sets; no 12‑lead). | Up to 14 days (external charger for battery). | Internal rechargeable battery (Lithium-ion); device is lightweight, IP64 water-resistant. | Yes (Bluetooth + USB). | Differences vs. NR-314: – Powered by rechargeable battery (no disposable cell).– Compact size (no battery compartment). – Pacemaker: Yes; Accel: Yes. – Respiration: No (respiration sensor omitted for this variant). – Ideal for long-term monitoring with frequent reuse (no battery cost). | ~€5,000 (with software). |
| NR-1207-3 – All-In-One Holter + Rest ECG | 12-lead ECG (standard 10-electrode cable) or 3-channel Holter (3, 5, 7 electrode cables). Supports derived 12-lead from 5 electrodes (optional). | Up to 14 days (3-ch Holter) or 7 days with full 12-lead recording. | Single AA cell (user-replaceable). (Alkaline or Lithium AA for longer runtime; NiMH rechargeable AA also supported.) | Yes (built-in Bluetooth for live ECG streaming; USB for data transfer). | – Multi-mode operation: Holter, Resting ECG, Stress test, and Telemetry (real-time monitoring) in one device. – Pacemaker detection: Yes (pacemaker pulse analysis). – Respiration monitoring: Yes (thoracic impedance respiration trends). – Accelerometer: Yes (3-axis motion sensor for physical activity). – Mobile device support: Compatible with Windows PC software and iOS/Android apps for acquiring 12-lead ECGs in real-time. | ~€1,950 (ECG unit) + €2,250 (Holter kit). (All-in-one package with software typically ~€4K–€6K) |
