Delivery costs start at just €2.90.
Hehku Duo
117,90€
- Two meat thermometers
- Extended range up to 50m
- Withstands temperatures up to 500°C
- Cooking time up to 36 hours, USB-C charging
Hehku Duo - 2x wireless meat thermometer
The Hehku Duo includes two wireless Bluetooth meat thermometers, designed to help you achieve perfect doneness for meats, fish, poultry, and game. It’s versatile for use with Gas Grill, Kettle Grill, Charcoal Grill, Oven, Kamado, Smoker, Sous Vide, Deep Fryer, and more.The thermometer is 100% waterproof, ensuring durability in various cooking environments.
Extended Range
The Hehku Duo utilizes repeater technology integrated into its charging dock, offering a range of up to 50 meters.
User-Friendly App
Select your food type, and the app guides you on when to remove it from heat, how long to rest, and notifies you when it's ready to serve.
Accurate Temperature Measurement & Long Battery Life
Multiple sensors ensure precise internal temperature readings. The thermometer’s battery lasts up to 36 hours, and the dock can last several months on a single charge, depending on usage.
High-Temperature Resistance
Withstands ambient cooking temperatures up to 500°C (932°F), making it suitable for high-heat grilling.
Easy to use
Insert the meat thermometer into the food, select the dish, and the thermometer will alert you when it's time to remove it from the heat.
Discover more features
Two meat thermometers
Monitor multiple cookings simultaneously or track different points in a larger cut for precise results.
Dock-Integrated Repeater
Uses Bluetooth 5.2 version. USB-C charging port in the dock, with enough power for several months of use on a single charge (2000mAh).
Measures Temperatures Up to 105°C
Measures internal meat temperatures up to 105°C (221°F). To prevent damage, do not use the thermometer in environments exceeding 500°C (932°F).
Rapid Charging
A quick 5-minute charge provides 2 hours of cooking time, while a full charge takes just 20 minutes, offering up to 36 hours of use.
Cooking Presets
Choose from various meat, fish, game, and poultry options, selecting your desired level of doneness.
Guided Cooking
The app alerts you when to remove your food from heat, how long to let it rest, and when it’s ready to be served.
Live Activity
Each Hehku thermometer appears in the notification bar on Android. On iPhone you can see live activities in the Dynamic Island and locked screen. This allows you to quickly check cooking status without opening the app.
Cooking History
Review your past cooking sessions, save notes, add photos, rate your dishes, and store everything in cloud storage for easy access.
High Heat Resistance
Withstands ambient cooking temperatures up to 500°C (932°F), making it suitable for high-heat grilling.
App developed in Finland
Easy to use – simply pair it with one or more Hehku meat thermometers
How it works
The Hehku One model features a built-in repeater in the dock, significantly extending the thermometer's range.
The Probe
Turn on the repeater dock and insert the Hehku meat thermometer into the food.
Repeater dock
Place the dock next to the cooking area. The dock repeats the meat thermometer's signal and ensures a strong range
Hehku App
Open the Hehku app. The meat thermometer connects to the app via the repeater.
Specifications
You can check the detailed technical specifications below.
Meat Thermometer
Hehku App
Dock
Coverage
Other
Compare the models
| Specification |
 Hehku One
68,90€ |
 Hehku Duo
117,90€
You are viewing this |
|---|---|---|
| Thermometers included | 1 | 2 |
| Dock battery | 1000 mAh | 2000 mAh |
| Maximum cooking chamber temperature | 500 °C | 500 °C |
| Maximum probe temperature | 105 °C | 105 °C |
| Accuracy | ±0.3 °C | ±0.3 °C |
| Connection | Bluetooth 5.2 | Bluetooth 5.2 |
| Range, thermometer to dock | 3 m | 3 m |
| Range, dock to phone | about 50 m | about 50 m |
| Thermometer battery life | 36 hours | 36 hours |
| Charging time | 5 min = 2 h of cooking, full in 20 min | 5 min = 2 h of cooking, full in 20 min |
| Water resistance | IP68, dishwasher safe | IP68, dishwasher safe |
| Thermometer size | 133 × 11 mm, 6 mm thick | 133 × 11 mm, 6 mm thick |
| Dock charging port | USB-C | USB-C |
| Thermometers per phone | 8 | 8 |
| Warranty | 2 years | 2 years |
Highlighted rows are where the models differ. Everything else is identical.
Frequently asked questions
What is the right internal temperature for meat?
The Hehku app suggests a target temperature for the ingredient you choose and tells you when to take the food off the heat so that the target is reached after resting. The app alerts you once the target temperature is reached. Accuracy is ±0.3 °C.
How far does the range reach?
About 3 metres from the thermometer to the dock and about 50 metres from the dock to your phone. The dock works as a signal repeater, so always place it next to the oven or grill — then you can follow the cook from indoors even when the grill is outside. Walls and other obstacles shorten the range. The connection is Bluetooth 5.2.
Does the thermometer survive oven and grill heat?
It does. The upper part of the thermometer withstands 500 °C and the maximum temperature for the measuring section is 105 °C. If the temperature in the oven or grill goes above 105 °C, always push the thermometer into the meat all the way to the safety mark so the measuring section stays protected inside the meat.
Note that Hehku measures the internal temperature of the meat, not the temperature of the cooking chamber. That measurement is hard to get accurate, so it was left out.
Is the thermometer dishwasher safe?
Yes. The thermometer is IP68 waterproof and dishwasher safe. You can also wash it by hand with soapy water. Wash the thermometer before first use as well.
How long does the battery last?
The thermometer battery lasts 36 hours. Five minutes of charging is enough for two hours of cooking, and a full charge takes 20 minutes. The dock has a battery of its own, so it works for a long time without mains power, and it charges over USB-C.
The thermometer has no power switch: it turns on when you lift it out of the dock, and it only charges in the dock. While charging, the thermometer cannot be connected to.
How do I connect the thermometer to my phone?
Download the Hehku app, connect the dock to power with the USB-C cable and lift the thermometer out of the dock — it turns on automatically. The green light on the dock stays lit when the thermometer is connected; a blinking green light means there is no connection.
Eight thermometers can be connected to the same phone at once, but a single thermometer can only be connected to one phone at a time.
Hannu Kukkonen (Verified purchase)
Vuosien varrella olen käyttänyt useita erilaisia paistomittareita mutta aina on jokin mittarin ominaisuus haitannut paiston lopputulosta. Ostin Hehku Duon vuosi sitten ja olen todella tyytyväinen ostokseeni. Hehku on on monipuolinen mittari ja varsinkin näin kesäjuhlissa, kun on paljon porukkaa syömässä, grillaukset ja uunipaistit onnistuvat mainiosti. Erityisen hyvänä ominaisuutena pidän puhelinsovelluksen vaivatonta ja selkeää käyttöä sekä tarkkaa lämpömittausta.
Antero
A very basic app and pretty modest features for the price. It measures the core temperature reliably, as it should, but for a device in this price range I would have expected it to also show the grill’s internal temperature.
Reply from: Hehku Team
Finnish
Hei, kiitos arvostelusta. Meitä on tulossa myöhemmin tänä vuonna malli joka tukee myös grillin lämpötilan mittausta erillisellä anturilla. Lisäksi sovellukseen on tulossa kahden mittarin tuki seuraavassa 1.7 versiossa jossa Duo mittarin kanssa voi liittää molemmat paistomittarit samaan kokkaukseen. Otamme myös mielellämme vastaan kehitysehdotuksia uusista ominaisuuksista sovellukseen support@hehkumeat.com osoitteeseen.
English
Hi, thank you for the review. We have a new model coming out later this year that also supports measuring the grill temperature with a separate probe. Additionally, the next 1.7 version of the app will introduce support for two thermometers, allowing you to connect both meat probes to the same cooking session when using the Duo thermometer. We also gladly welcome suggestions for new app features at support@hehkumeat.com.
Paistaja (Verified purchase)
Absolutely brilliant. How have I ever managed without this?
Mustonen Petteri (Verified purchase)
Great product, works really well.
Anders
I was unlucky enough to get a faulty thermometer. I contacted support and, after a bit of troubleshooting, it was found to be broken, so they sent a new one that works flawlessly.
Stefan Gullbäck (Verified purchase)
Works perfectly and it’s convenient to use 2 at the same time
Per (Verified purchase)
Good hardware, but the software could be better. The cooking guide isn’t good enough. It recommends cooking pork medium-rare, same with fish. I googled the temperatures and use those instead because I don’t trust the guide. Everything else works very well.
Reply from: Hehku Team
Swedish:
Hej, tack för din feedback! Det är inte riktigt så enkelt med fläskkött — att bara bedöma köttets färg är inte ett tillförlitligt sätt att avgöra om det är säkert att äta. Till exempel anger USDA (USA:s jordbruksdepartement) på sin webbplats (https://ask.usda.gov/s/article/To-what-temperature-should-I-cook-pork) att lägsta innertemperatur för fläskkotletter och stekar bör vara 62,8 °C, medan helt genomstekt fläskkött ligger på cirka 71 °C. Generellt kräver fetare kött alltid en högre genomstekningsgrad.
När det gäller lax är situationen en annan: färsk lax är säker att äta även rå, så du kan välja önskad genomstekningsgrad helt tryggt efter egen smak. Vid 32–42 °C är laxen fortfarande rödaktig inuti, vilket passar utmärkt till exempel i asiatiskt kryddade rätter. Vid 42–52 °C är laxen lite mer genomstekt men ändå saftig — 42 °C anses ofta vara den perfekta genomstekningsgraden. Om du vill äta laxen helt genomstekt kan du tillaga den till 62 °C, då blir den genomstekt rakt igenom men ändå inte för torr.
English
Hi there, thanks for the feedback! It’s not quite that simple with pork — just judging by the color of the meat isn’t a reliable way to tell if it’s safe to eat. For example, the USDA states (https://ask.usda.gov/s/article/To-what-temperature-should-I-cook-pork) that the minimum internal temperature for pork chops and roasts should be 62.8 °C (145 °F), while fully cooked pork reaches about 71 °C (160 °F). In general, fattier cuts always require a higher degree of doneness.
With salmon it’s a different story: fresh salmon is safe to eat even raw, so you can pick the doneness that suits your taste with full confidence. At 32–42 °C the salmon is still reddish inside, which is great for example in Asian-style dishes. At 42–52 °C it’s slightly more cooked through but still moist — 42 °C is often considered the perfect doneness. If you prefer salmon fully cooked, go for 62 °C, which cooks it through without drying it out.
Leif (Verified purchase)
Hi. It worked perfectly, the meat turned out juicy and tender. Unfortunately one of the thermometers stopped working, but a new thermometer was sent out right away and it works well. Fast service
Steffan Bjuren (Verified purchase)
A great product, very easy to use.
Kim (Verified purchase)
Easy to use, good range. Fast delivery.
Jyrki, Tampere. (Verified purchase)
It works, I had a problem on Christmas Eve while cooking the ham and got help and advice right away despite the timing. I’ve never experienced customer service working this well before, and they were able to guide me so the devices started working. Super big thanks, I recommend it.
Göran (Verified purchase)
Very easy to connect to the phone, good Bluetooth. I had the thermometer in the smoker outside and it still stayed connected indoors, about 30 m apart.