Connected Thermometers
MEATER, Combustion Predictive, Thermapen, ThermoWorks Smoke — Bluetooth and predictive thermometers for grilling, BBQ, sous vide.
The "what's the actual internal temperature" page. For sous vide / smart appliances see Smart Appliances & Sous Vide; for kitchen scales see Smart Kitchen Scales; for HA-side integration see Home Assistant Add-ons; for ESPHome / Tasmota DIY thermometers see ESPHome / Tasmota; for food-safety dating / temp-danger-zone reference see Food Safety & Dating.
The 2024-26 hot category: predictive thermometers
- ★ Combustion Predictive Thermometer — paid (~$130); released late 2023; 8 thermistors in one probe (the breakthrough), predicts when a roast / steak / chicken will finish via a server-side model. The leap forward in this category. iOS / Android first-party app; also has an open MQTT bridge.
- ★ MEATER 2 Plus / MEATER Pro — paid; the WiFi/BT-bridge predictive thermometer that defined the category; ~$130 for the Plus, ~$200 for Pro; clean app; Apple Watch + Alexa integration. Works fine; predictive accuracy improved noticeably in 2024.
- ThermoWorks RFX — paid (~$280); pro-flavored; long-range RF; less consumer-friendly app.
- Yummly Smart Thermometer — paid; Whirlpool/Samsung-cycle survivor; basic predictive; closed cloud.
- Chef iQ Smart Wireless — paid; cheaper MEATER-clone; varying reviews.
- TempSpike (ThermoPro) — paid; budget; Bluetooth only; smaller range.
The predictive feature is the differentiator: traditional thermometers tell you the current temp; predictive ones model the cooking curve and tell you "this brisket will hit 195°F at 4:23 PM." MEATER has the broad-market lead; Combustion's 8-thermistor probe is the engineering win.
Instant-read (the real workhorse)
- ★ ★ ThermoWorks Thermapen ONE — paid (~$100); not "smart" but the right thermometer for any cook. 1-second read, ±0.5°F accuracy, IP67. Pro-kitchen default; nothing else is close on instant-read.
- ThermoWorks ThermoPop 2 — paid (~$35); cheaper instant-read; ±2°F.
- Lavatools Javelin Pro — paid (~$60); Thermapen-shape budget.
- GDEALER / Habor / generic — paid; cheap; OK for low-stakes.
If you can only own one thermometer, it's a Thermapen ONE. The smart probes complement it; they don't replace it.
Multi-probe smokers / BBQ controllers
- ★ ThermoWorks Smoke X4 / Signals — paid; 4-probe; long-range RF on Smoke; WiFi on Signals. The pitmaster default.
- FireBoard 2 Drive — paid; 6-probe + fan-controller integration for offset smokers.
- Inkbird IBBQ-4T / 4BW — paid; cheaper 4-probe BT/WiFi.
- Maverick ET-733 / 735 — paid; old-school 2-probe RF; rugged.
- DigiQ DX3 — paid; BBQ Guru; fan-driver integration for ceramic / drum smokers.
- Flame Boss — paid; same shape; competitor.
DIY / FOSS thermometers
- ★ ESPHome thermometer — DS18B20 + ESP32 + ESPHome; ~$10 in parts; integrates into HA; cheap-as-chips. The right call for ambient probes (smoker box temp, sous vide bath redundancy). See ESPHome / Tasmota.
- Inkbird DIY-flavored Bluetooth probes — they're open enough for community HA integrations.
- OpenBBQ / TemperatureLogger projects — varying maturity on GitHub.
- PT100 / PT1000 + a HX-style amp + ESP32 — for high-accuracy science-flavored probes.
App + Home Assistant integrations
- MEATER ↔ HA — community integration; works via cloud bridge.
- Combustion ↔ HA — direct via the open MQTT bridge; the best HA story of any consumer probe.
- ThermoWorks Cloud ↔ HA — improving; community integration.
- Inkbird ↔ HA — BT proxy via ESP32; community.
- Anova app — see Smart Appliances & Sous Vide.
Pricing landscape (mid-2026)
| Thermometer | Cost | Type | Best at |
|---|---|---|---|
| Combustion Predictive | $130 | Predictive 8-probe | The 2024–26 standout |
| MEATER 2 Plus | $130 | Predictive 1-probe | Default consumer pick |
| MEATER Pro | $200 | Predictive 1-probe | Long-cook BBQ |
| Thermapen ONE | $100 | Instant-read | Universal must-have ★ |
| ThermoWorks Smoke X4 | $200 | 4-probe RF | Pitmaster default |
| FireBoard 2 Drive | $250 | 6-probe + fan | Offset smoker |
| Inkbird IBBQ-4T | $80 | 4-probe BT/WiFi | Budget BBQ |
| TempSpike | $50 | Predictive 1-probe | Budget MEATER-shape |
| ESPHome DIY | $10 | DIY ambient | HA / hacker |
Practical guidance
- ★ Buy the Thermapen first; predictive thermometer second. Instant-read solves daily cooking; predictive solves long cooks.
- Calibrate annually with ice water (32°F) and boiling water (~212°F at sea level).
- Probe placement matters more than thermometer choice. Center of thickest part, not touching bone.
- Predictive temp is a comfort, not a guarantee. A brisket stalls; the model adapts; the cook still takes longer than predicted.
- WiFi probes need range testing. Smoker → kitchen → router can be 3 walls.
- Combustion's open MQTT is the right call for HA-first households.
Pick this if…
- One thermometer to own: Thermapen ONE.
- Long cooks (BBQ, big roasts), default predictive: MEATER 2 Plus.
- Bleeding edge, open MQTT, HA-friendly: Combustion Predictive.
- Multi-probe smoker setup: ThermoWorks Smoke X4 or FireBoard.
- Offset / kamado with fan control: FireBoard 2 Drive or DigiQ.
- DIY / HA-flavored: ESPHome + DS18B20.
- Budget single-probe BBQ: Inkbird IBBQ-4T or TempSpike.