How PM5 Bluetooth Tracking Works.
Connecting your Concept2® ergometer to ErgUltra takes seconds. The PM5 monitor broadcasts data via Bluetooth Low Energy — ErgUltra picks it up automatically.
Turn on your PM5
Power on your Concept2® RowErg®, SkiErg®, or BikeErg®. The PM5 performance monitor activates Bluetooth automatically.
Open ErgUltra
Launch the ErgUltra app on your smartphone. The app scans for nearby PM5 monitors via Bluetooth Low Energy (BLE).
Connect & Train
Tap your PM5 to connect. Within seconds, real-time data streams to your phone. Start rowing, skiing, or cycling — ErgUltra handles the rest.
Every PM5 Metric, in Real Time.
The Concept2® PM5 is the most accurate performance monitor in fitness. ErgUltra captures every data point it broadcasts and presents it in a clean, athlete-focused interface.
Power (Watts)
Real-time wattage output from every stroke. Track your power curve and see how consistent your effort is across the workout.
Pace (Split Time)
Your current pace displayed as time per 500m. The gold standard metric for indoor rowing performance comparison.
Stroke Rate (SPM)
Strokes per minute measured in real time. Optimize your stroke rate for different training zones — from steady state to sprint intervals.
Heart Rate (BPM)
Live heart rate data from your Bluetooth HR monitor, overlaid with PM5 metrics. Train in the right zone for your goals.
Distance & Calories
Cumulative distance in meters and calories burned, updated every stroke. Set targets and watch your progress in real time.
Drag Factor
The PM5's unique drag factor measurement ensures accurate comparison across machines. ErgUltra tracks and displays it automatically.
Compatible with All Concept2® Ergometers.
ErgUltra works with every Concept2® ergometer equipped with the PM5 performance monitor. This includes the RowErg® (Model D and Model E indoor rowers), the SkiErg® (wall-mounted and floor-standing), and the BikeErg®. If your machine has a PM5, ErgUltra can connect to it.
RowErg®
Indoor rowing machine with air resistance flywheel. The world's most popular indoor rower.
SkiErg®
Cross-country ski trainer. Full-body workout targeting arms, core, and legs.
BikeErg®
Air resistance stationary bike. Smooth, responsive cycling with PM5 precision.
Bluetooth Low Energy (BLE) — How It Works
The PM5 uses Bluetooth Low Energy (BLE) to broadcast workout data. BLE is energy-efficient and provides a stable, low-latency connection between your ergometer and smartphone. ErgUltra implements the Concept2® BLE protocol to receive data packets containing pace, watts, stroke rate, distance, and elapsed time — updated multiple times per second.
Unlike ANT+ connections that require a separate dongle, BLE works natively with every modern smartphone. No additional hardware needed — just your phone and your PM5.
What About Older Monitors (PM3, PM4)?
The PM3 and PM4 monitors do not support Bluetooth. If you have an older Concept2® ergometer, you can upgrade to the PM5 — Concept2® sells it as a standalone accessory that fits all current-generation machines. The PM5 upgrade gives you Bluetooth connectivity, improved display, and compatibility with ErgUltra and other modern training apps.
Technical Specifications.
| Connection Protocol | Bluetooth Low Energy (BLE) 4.0+ |
| Supported Monitors | Concept2® PM5 (all firmware versions) |
| Supported Ergs | RowErg®, SkiErg®, BikeErg® |
| Data Update Rate | Multiple times per second |
| Tracked Metrics | Watts, Pace, Stroke Rate, HR, Distance, Calories, Drag Factor |
| Phone Compatibility | iOS 14+ / Android 10+ |
| Connection Range | Up to 10 meters (30 feet) |
| Battery Impact | Minimal (BLE is energy-efficient) |
| Offline Support | Yes — data stored locally, syncs later |