Product Details

1 Product Overview

SC-GP-DP4G wireless online dew point monitor is an industrial-grade, compact and portable online dew point transmitter launched by Shanghai DAQ IoT Technology Co., Ltd., providing fast, stable and repeatable temperature measurement.

Application fields: it is suitable for the semiconductor industry and a variety of industrial applications, such as pure gas, dryers, glove boxes, drying rooms, additive production, compressed air, and other applications requiring high-precision humidity control.

2 Ordering Specifications & Model Selection

Model	Description
DAQ-GP-DP4G	4G transmission, conventional 12V DC power supply. Suitable for occasions with convenient power supply and high acquisition frequency.
DAQ-LP-DP4G	4G transmission, 3.6V battery power supply, battery life 1~2 years depending on acquisition frequency. Suitable for occasions with low acquisition frequency and inconvenient power supply.
DAQ-GP-DPLoRa	LoRa transmission, 12V DC power supply
…	Customized (transmission via RS485, WiFi, Ethernet interface, etc.)

4 Product Features & Parameters

4.1 Acquisition Characteristics

Dew point range: -60° ~ 60°C (configurable, affected by the environment)

Measurement accuracy: ±2°C (in air or N2)

4.2 Electrical Characteristics

Operating power supply: DC 12V~30V

Power consumption: less than 5W

4.3 Communication Characteristics

Wireless transmission mode: 4G / LoRa / WiFi / network cable

Communication protocol: MQTT / TCP / UDP / HTTP / SSL; other protocols customizable

Data forwarding: any public network server

Number of server centers: supports reporting data to up to 7 cloud servers simultaneously

Heartbeat packet: supports custom heartbeat packets, which can be set to the signal strength

Registration packet: supports custom registration packets, which can be set to the IMEI code

4.4 Operating Environment

Probe operating temperature: -40° ~ 80°C

5 Core Advantages

• Simple installation and rapid deployment, helping IoT projects go live quickly

• Supports custom registration and heartbeat packets, making it easy for the platform to distinguish devices

• Supports any IoT cloud platform and configuration software, with data protocol integration

• Supports mainstream cloud platforms such as Alibaba Cloud, Baidu Tiangong, OneNet and Tencent Cloud

• Supports external connection of multiple sensors

• Non-invasive acquisition, without affecting the normal operation of equipment

• Supports remote parameter configuration and FOTA remote upgrade, minimizing on-site installation and maintenance labor costs

6 Typical Application Cases

7 Data Reporting Communication Protocol

7.1 Protocol Parsing Description

Multiple push methods such as UDP/TCP/MQTT/HTTP; users receiving data must provide the public IP address and port number of the cloud server.

Example JSON data message:

{“IMEI”:860344048491162,“Temperture”:20,“Humidity”:“17.54”,“DP”:“12”,“ICCID”:“1119205006447538”}

Message parsing:

{

“Temperture”: “20.2”, // temperature

“Humidity”: “17.54”, // humidity

“DP”: “12”, // dew point

“ID”: “860344048491162” // device ID

}

Protocol reception test: reception testing can be performed with the network debugging assistant NetAssist.

7.2 Protocol Customization

If you need to customize other communication protocols, please contact our sales staff.

8 Platform Integration

8.1 Default Platform

By default, the product connects to our designated open industrial IoT platform, whose interface is shown below:

PC browser interface

Mobile WeChat access interface

8.2 User-Specified Platform

Taking Alibaba Cloud platform integration as an example: after the user creates a product and adds a device on the Alibaba Cloud IoT platform, the user needs to provide a triple {ProductKey, DeviceName, DeviceSecret} and the MQTT topic to publish to. For example:

ProductKey = b0FMK1Ga5cp

DeviceName = 862991419835241

DeviceSecret = y7MTCG6Gk33Ux26bbWSpANl4OaI0bg5Q

Taking OneNet platform integration as an example: after the user creates a product and adds a device on China Mobile’s OneNet platform, the user needs to provide the product ID and device registration code. For example:

ID: 332590

Registration code: DGRUa7Vr9KYGunwJ

9 Installation Notes

1. The product has a built-in SIM card. The annual data traffic fee is about 10~20 RMB, depending on the reporting frequency. You may also use your own SIM card, which must be confirmed in advance.