ThermoWorks Thermapen ONE vs ThermoWorks Signals: Which One Should You Buy?

ThermoWorks makes the two best thermometers in BBQ. The Thermapen ONE is the definitive instant-read. The Signals is the definitive multi-channel monitor. Same brand, same quality ethos, completely different use cases. If you're building your thermometer arsenal, the question is which one comes first. ## Quick Comparison | Feature | ThermoWorks Thermapen ONE | ThermoWorks Signals | |---------|--------------------------|--------------------| | **Price** | ~$105 | ~$230 | | **Type** | Instant-read | 4-channel WiFi monitor | | **Speed** | 1 second | Continuous monitoring | | **Probes** | 1 (handheld) | 4 (leave-in) | | **Best For** | Checking doneness | Long cooks | | **Waterproof** | IP67 | IP66 | | **BBQ Experience Score** | 8.8/10 | 8.2/10 | ## What Each Does Best The Thermapen ONE answers one question instantly: "Is this done?" Open, insert, read in one second. It's the single most useful tool in any outdoor kitchen. You'll use it every single cook — grilling, smoking, frying, baking. It's universal. The Signals answers a different question continuously: "How is this progressing?" Insert four probes, close the lid, monitor from inside the house. It's essential for long smokes where you need to track internal temperature and ambient temperature over hours without opening the cooker. ## When You Need Which **Thermapen ONE (buy first):** Every cook benefits from instant temperature readings. Checking steak doneness. Verifying chicken is safe. Testing bread internal temp. You use it 100% of the time you cook, regardless of method. **Signals (buy second):** Long smokes benefit from continuous monitoring. Brisket, pork shoulder, ribs — any cook over 4 hours. You use it 20-30% of the time you cook, but when you need it, nothing else will do. ## Build Quality Both are peak ThermoWorks quality. The Thermapen ONE's auto-rotating display and auto-wake are brilliantly executed. The Signals' rechargeable battery lasts 16 hours — enough for any cook. Both are waterproof. Both will last years. ## Value for Money The Thermapen ONE at $105 with an 8.8 score is the better value. Higher score, lower price, more universal utility. The Signals at $230 with an 8.2 score is excellent value for what it does, but it serves a narrower use case. Combined, both cost $335 — less than many single gadgets that do less. Together, they cover 100% of BBQ temperature monitoring needs. ## Verdict **Buy the Thermapen ONE first.** It's more versatile, cheaper, and scores higher. You'll use it every time you cook. **Buy the Signals second.** When you start doing long smokes and want to monitor without opening the lid, the Signals becomes indispensable. **The ideal setup:** own both. There's no redundancy between them. They solve different problems perfectly. [Full ThermoWorks Thermapen ONE Review](/en/reviews/thermoworks-thermapen-one-review/) | [Full ThermoWorks Signals Review](/en/reviews/thermoworks-signals-review/)