Instrument your rituals, not just your step count.
Pulse Sensors are small Bluetooth sensors plus the Yutori app that upgrade any sauna or cold plunge you already own. Pick sauna, plunge, or both — and get live temperature, automatic session logging, HR/HRV integration, coaching, and an emergency-aware safety layer.
Explore sensors belowHow It Works
Same hardware, same app — just pointed at heat, cold, or both.
Sensor in the environment
A RuuviTag Pro–class sensor measures temperature (plus humidity for sauna) at the point your body actually experiences it.
App on your phone + watch
Yutori reads sensor data over Bluetooth, pulls HR and HRV from Apple Health, and turns each heat or cold round into a structured session.
Coach in the background
Live Coach builds personal timing windows, watches heart-rate and temperature guardrails, and logs trends over weeks with optional protocols and emergency alerts.
Choose Your Setup
One sensor platform, three options.
Pulse Sauna Sensor
$87For people who already own a sauna.
- Live bench-height temperature and humidity
- “Sauna ready” alerts at your preferred temperature
- Auto logging, HR/HRV, Live Coach, and safety rails with Premium
Pulse Plunge Sensor
$87For any cold tub or plunge system.
- Live water temperature to the degree
- Automatic plunge logging with duration and temp curve
- Live Coach for cold, cold-shock HR trends, and safety alerts with Premium
Pulse Contrast Bundle
$157For people running hot and cold.
Save $17 vs. buying separately
- Two sensors (one sauna, one plunge) under one account
- Contrast-aware tracking: alternating rounds as a single session
- Live Coach adjusts for where you are in the hot–cold cycle
Yutori Premium
One subscription for everything.
Optional upgrade layer. Applies across all sensors on your account. Start with the free tier and upgrade when you’re ready to train more deliberately.
- HR/HRV integration from wearables
- Live Coach timing windows and guardrails for sauna, plunge, and contrast
- Long-term trends (HRV, resting HR, tolerance, usage)
- AI-generated insights and multi-week protocols
- Safety workflows with emergency contact escalation
Premium
$4.97/mo or $39.99/yr
Applies across all sensors on your account
Compare
Quick comparison.
| Option | Hardware | Best for | Price |
|---|---|---|---|
| Pulse Sauna Sensor | 1× sauna sensor | Existing sauna owners | $87 |
| Pulse Plunge Sensor | 1× plunge sensor | Any cold plunge / tub | $87 |
| Pulse Contrast Bundle | 2× sensors | Sauna + plunge, contrast sessions | $157 |
Start measuring what matters.
From $60. No subscription required for basic features. Ships directly.