Buying guide
Wired-Probe Alarm Thermometers
Our pick
ThermoWorks Signals™
Choose the ThermoWorks Signals for a long smoke when you want to track cooker and food temperatures together.1
Why this one
- Signals has four channels, leaving room for a cooker probe and several pieces of food without swapping readings.1
- Its high and low alarms for each probe can warn when a reading crosses either chosen limit.2
- Wi-Fi and Bluetooth connectivity provide options for checking readings away from the display, subject to the connection requirements of your setup.2

For tracking two or more probes at once
Each temperature you want to watch simultaneously needs a probe channel.16 Choose Signals for four channels; Smoke provides two.16
For being warned when a temperature drifts out of range
High and low limits give you alerts for a reading rising above or falling below your settings.24 Signals provides high and low alarms for each probe across its four channels.12
For cooking one thing at a time
One probe channel covers a single temperature reading at a time.67 Choose ChefAlarm for one channel with high and low alarms plus a built-in timer.46
4 models / at a glance
Key differences
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4 products
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Reset requirements4 models compared.
Alarm volume (decibel); higher is preferred · 0 to 92
Channels (channel); higher is preferred · 0 to 4
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Models in this comparison
Every specification for these products
| Specification | ThermoWorks Signals™ | ThermoWorks ChefAlarm® | ThermoWorks DOT® | ThermoWorks Smoke |
|---|---|---|---|---|
| Channels | 4 channel1 | 1 channel6 | 1 channel7 | 2 channel6 |
| Wireless link | Bluetooth and wifi2 | None3 | None3 | Rf proprietary6 |
| Alarm mode | High and low2 | High and low4 | Single target5 | High and low6 |
| Alarm volume | 90 decibel2 | 92 decibel4 | 70 decibel5 | 90 decibel8 |
| Timer | Not published | Yes4 | Not published | Not published |
| Battery life | Not published | Not published | 5,000 hours9 | Not published |
| Power source | Not published | Not published | Disposable aaa9 | Not published |
Compare features
4 products
How they compare
Scroll the table to see every product and specification.
| Specification | Our pickThermoWorks Signals™ | ThermoWorks ChefAlarm® | ThermoWorks DOT® | ThermoWorks Smoke |
|---|---|---|---|---|
| Channels | 4 channel1 | 1 channel6 | 1 channel7 | 2 channel6 |
| Wireless link | Bluetooth and wifi2 | None3 | None3 | Rf proprietary6 |
| Alarm mode | High and low2 | High and low4 | Single target5 | High and low6 |
| Alarm volume | 90 decibel2 | 92 decibel4 | 70 decibel5 | 90 decibel8 |
| Timer | Not published | Yes4 | Not published | Not published |
| Battery life | Not published | Not published | 5,000 hours9 | Not published |
| Power source | Not published | Not published | Disposable aaa9 | Not published |
