DMT01

Version 29.3 by Mengting Qiu on 2025/08/02 15:42

Table of Contents:

1. Introduction

1.1 What is DMT01 Wireless Meat Thermometer

The DMT01 is a professional-grade wireless meat thermometer engineered for accurate, real-time temperature monitoring in commercial cooking environments. Ideal for restaurants, central kitchens, catering services, and food processing facilities, the DMT01 ensures consistent results across various cooking methods—including grilling, smoking, roasting, deep-frying, sous vide, baking, and more. Its precise monitoring helps improve cooking efficiency, ensure food safety, and meet HACCP compliance standards.

The system consists of two components:
- Food-grade BLE High-Temperature Probe – A durable, high-heat resistant probe that measures internal food temperature during cooking.
- Charging Base with BLE & LoRaWAN Forwarder – This base not only charges the probe but also acts as a communication bridge. It receives temperature data from the BLE probe and transmits it via the LoRaWAN long-range wireless protocol to your IoT platform or monitoring system.

With its dual wireless support (BLE for close-range/small design and LoRaWAN for long-range data transmission), the DMT01 is ideal for both home cooking enthusiasts and commercial kitchen environments seeking smart, connected temperature monitoring.

1.2 Features

Wireless Meat Thermometer – Designed for accurate and reliable cooking temperature monitoring
Food-Grade Probe – Safe for food contact and dishwasher-compatible for easy cleaning
BLE 5.1 Broadcasting – Supports real-time local data transmission via Bluetooth Low Energy
LoRaWAN Connectivity – Enables long-range, low-power data transmission to IoT platforms
Smart Uplink Triggering – Supports periodic data reporting and real-time alerts on temperature thresholds

1.3 Specification

Common DC Characteristics:

Supply Voltage: +5v via USB Type-C
Operating Temperature:

Food Probe Spec:

Length: 126mm
Diameter: 6mm
Food temperature: -30 ~110 °C, Accuracy: ±0.5°C
Ambient temperature: 0 ~380°C, Accuracy: ±5°C
Wireless: BLE 5.1
Distance: ≥ 30m
Battery: 4mAh
Recharge time: ＜ 2 hours
Battery Duration: ＞30 hours
IP Rate: IP67, Dish Washer proof

Charger Spec:

BLE v5.1 + LoRaWAN
Power Input: USB Type-C, +5v
Battery: Li-ion , 3000mAh
Recharge time: ＜ 2 hours

1.4 Applications

Commercial Kitchen
Restaurant
Catering
Food Processing
Central Kitchen
Cloud Kitchen
HACCP Monitoring
Food Safety
Meat Factory
Industrial Cooking

1.5 Product Apperance

1.6 Working mode

Deep Sleep Mode: Sensor doesn't have any LoRaWAN activate. This mode is used for storage and shipping to save battery life.

Working Mode: In this mode, Sensor will work as LoRaWAN Sensor to Join LoRaWAN network and send out sensor data to server. Between each sampling/tx/rx periodically, sensor will be in IDLE mode), in IDLE mode, sensor has the same power consumption as Deep Sleep mode.

1.7 LED Status

The DMT01 uses a dual-color LED to indicate system status:

LED Behavior	Description
Green breathing effect	Probe is inserted and charging (LED turns off immediately when probe is removed)
Red solid (5 seconds)	Mode switched successfully (after 1-3s button press)
Red blinking (15 seconds)	Charging base low battery (<15% capacity)
Red/Green alternating blink (3 seconds)	Device reset in progress (after 3s long press)
Single green blink	BLE connection established between probe and base

1.8 Button Function

Behavior on ACT	Function	Action
>3s	Active Device	Red/Green alternating blink (3 seconds), DMT01 will enter working mode and start to JOIN LoRaWAN network. When the probe is placed in the repeater to charge, the green LED above the relay box will have a breathing effect. When the probe is taken out, the LED light will go out.
1~3s	Switch working mode	There are three operating modes: Default LoRaWAN and Bluetooth broadcast mode, Separate LoRaWAN mode Separate Bluetooth broadcast mode. Note: To switch modes, remove the probe and press the button; otherwise, the mode will not switch.

1.9 Power on device and Recharge Probe

2. Use DMT01

2.1 How it works

DMT01 Include two parts,

The food grade probe : used to measure the meat temperature
The Charger which is also a LoRaWAN End node: used to connect the probe via BLE and get the temperature and send via LoRaWAN to IoT server.

Consider the BLE coverage , there is two cases:

Connection Mode: Probe is near by the Charge, within BLE range

Probe will establish connection to the charge via BLE. and the data flow is as below.

Broadcast Mode: Probe is far away from the Charge, out of BLE range

Probe will auto swtich to BLE broadcast mode and broadcast the data via BLE. Any BLE Scaner can pick up the signal and send to IoT server.

For example:

1) User can use BH01 BLE to LoRaWAN converter to pick up the BLE signal to IoT Server

2) User can use Mobile phone to get the broadcast signal and further process.

2.2 Activate Device

To use DMT01 send data to LoRaWAN network, user need to:

Input the OTAA Keys in LoRaWAN Network Server
Make sure there is LoraWAN network
Press the button on the DMT01 for more than 3 seconds, DMT01 will start to connect to LoRaWAN network

After the DMT01 Join LoRaWAN network, once user take out the probe, the probe will start to measure temperature and user will be to see the data on the server.

2.2 LoRaWAN Payload

2.3 Bluetoothe Broadcast Payload

3. Configure DMT01 -- 需要修改

3.1 Configure Methods

User can use LoRaWAN downlink command to configure the DMT01

3.2 Downlink Commands Set

To be updated...

4. Firmware update

Firmware download link (To be updated...)

User can upgrade the firmware for DMT01 charger. The charger include two piece of software:

For LoRa part: OTA firmware update via LoRa:.

For BLE and controller part.

4.1 Update LoRa software

4.2 Update BLE software

5. FAQ

6. Order Info

Part Number: DMT01-XX

XX:

EU433: Frequency bands EU433
EU868: Frequency bands EU868
KR920: Frequency bands KR920
CN470: Frequency bands CN470
AS923: Frequency bands AS923
AU915: Frequency bands AU915
US915: Frequency bands US915
IN865: Frequency bands IN865
CN779: Frequency bands CN779

7. Packing Info

Package Includes:

DMT01 - Digital Meat Thermoneter x 1

Dimension and weight:

Device Size: cm
Device Weight: g
Package Size / pcs : cm
Weight / pcs : g

8. Support

Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to support@dragino.com.