Our Product

Cold Chain Monitoring

Real-time Cold Chain Monitoring Transportation System

Mini Keeper

Cold Chain Keeper

IoT GateWay

Mobile App

Mini KeeperThe mini keeper alone can only be used as a thermograph

Temperature Measuring Range	Internal (-10℃~60℃) / External (-40℃~125℃)
Wireless Communication Method	Bluetooth
Battery Type	2 AAA Batteries
Bluetooth Connection Range	30M (98ft)
Features	· Data transmission system from 1 device to many devices through BlueTooth · An easy-to-use AAA battery type · Easy storage due to the small size of the device · Data can be stored for up to a maximum of 20 days according to the record intervals · Able to be adjusted between 10 seconds / 30 seconds / 1 minute / 2 minutes / 5 minutes / 10 minutes / 30 minutes

Cold Chain Keeper

Illumination Sensor		1 ~ 65535 lx
Temperature	Measurement Range/Number of Devices	-200℃~50℃ / 1 device
Temperature	Temperature Sensor Type	RTD
Acceleration Sensor		1 Sensor (3 axis max 16G)
Location Measurement		GPS
Wireless Communication Method		wCDMA, Bluetooth, LTE
Battery Type		Lithium-polymer (built-in)
Battery Capacity		2650mAh
Features		· Measures super-low temperatures up to -200℃ · Data on GPS, temperature, humidity, illuminance, and vibration is collectible · Operates for a maximum of 2 days due to its large capacity built-in battery · Able to be used while being turned on at all times / compatible with an external battery pack

IoT GateWayNeeded to upload data to the server

User Environment	Warehouse and Direct Delivery Method
Connection Capacity	Optimized for 50 devices / Maximum 300 devices
Transmission Method	Real-time Data Transmission
Monitoring	Private server supported
Characteristics	· The data of the mini keeper can be transmitted at once

Mobile AppNeeded to upload data to the server

User Environment	3rd Party Delivery (Parcel)
Connection Capacity	Optimized for 20 devices / Maximum 30 devices
Transmission Method	For more than Android version 9.0
Monitoring	Private server supported
Characteristics	· Batch Transmission of internally stored temperature date

Features of the Cold Chain Monitoring System of Dongwoo Engineering Co., Ltd

LTE Communication based Real-Time Monitoring System

Mini Keeper → Gateway [Bluetooth]
Gateway → Server [LTE]

A measurement and storage and warning transmission system of 5 Types of Data, Real-time temperature / humidity / location / illumination / vibration, etc.

A system that allows for the connection and data transmission of up to 50 optimal devices and a maximum of 300 devices on one IoT Gateway

※ Dongwoo’s monitoring product was used for GC Green Cross’s vaccine transportation in 2022 (8000 Mini-Keepers)