Temperature data logger and sensors are not apart from each other, but parts of the entire temperature monitoring solution.
Temperature Data Logger Wireless
Wireless Data Logger Features
Wireless Temperature Monitoring
Low Power Strong Signal
Wide Temperature Range
What is a Wireless Temperature Data Logger?
A Data Logger is a device that records data over time. In a temperature monitoring system, the Data Logger would be recording the temperature reading. It can be either AC powered or battery powered.
The data are recorded with either an in-built sensor(s) or external sensor(s) through wire or wireless radio frequency. The data can then be subsequently extracted from the Data Logger directly or uploaded to the internet directly if the Data Logger is equipped with a network module for WiFi or ethernet functions.
Common questions to ask when inquiring on a Wireless Temperature Data Logger
Not to be confused with the temperature reading range for the sensors, this is the temperature range wherein the Data Logger device is able to function in. Some Data Loggers are designed to be in harsh environment while others are designed to be located in a normal environment and communicate with the sensors in the harsh environment.
We understand that no one can offer an unlimited storage for data. So it is important to know the max number of data points that a Data Logger can store, and get one that can meet your requirements.
E.g. there is a need to record the temperature hourly and generate a monthly report at the end of the month. So the math would be 24 (hours in a day) x 28 (days in a month) = 672. You would need to get a Data Logger that can minimally store 672 data points before resetting the data points for the next month.
With the introduction of IoT monitoring solutions, businesses are transiting to automation of their operations to improve efficiency and lower cost.
This question is important as the data has to be extracted manually from the Data Logger if the Data Logger does not have a WiFi or Ethernet capability. On the other hand, a Data Logger with WiFi or Ethernet capability can be programmed to upload the data stream to the internet and you can access the data remotely and monitor the temperature in real time.
Data Logger with access to the internet will not be limited by its designed maximum number of data points as the data are uploaded directly to the cloud servers.
This question helps you to identify the schematics of the temperature monitoring system and where to position this Data Logger.
Some Data Loggers comes with an in-built temperature sensor which means the Data Logger will have to be in the environment for which you want the temperature to be monitored. Others may be able to connect with sensors through wireless means, so the Data Logger can be elsewhere while the sensors are in the environment where you want the temperature to be monitored.
This will help you to plan the number of devices needed to meet your requirements.
Generally, wireless solutions allows for more sensors to be connected to a single Data Logger. While wired solutions faces a restraint on the total number of devices connectable to a single Data Logger.
Like the previous question, this helps to plan for the number of devices required to meet your needs.
A wireless solution typically works better for a further range or coverage requirement. It does not make sense to run wires over long distance from an economic point of view.
What are Temperature Sensors?
A Temperature Sensor is a device that measures temperature in its given environment.
Scientifically, the sensors can be known as a thermocouple, thermistor, resistance temperature detector (RTD), negative temperature coefficient (NTC), etc.
It is not necessary to understand the various types of temperature sensors, but you will realize a trend as you do more research. e.g. RTD sensors are usually more accurate and stable but more expensive. What businesses really need, is the most affordable sensor that can meet their needs.
Common questions to ask when inquiring on a Temperature Sensor
The operating range for the sensor refers to temperature range for the sensor body to work. This is usually applicable to wireless sensors that house parts required to transmit data.
The measurement range for the sensors refers to the temperature range that the sensor probes can measure. This should be present for every sensor without exceptions, as the sensors’ function is to perform measurement.
The level of accuracy that is required for your purpose. A general universal accuracy of about ±0.5°C would suffice for most operations.
This is a common question for businesses that are looking into remote IoT monitoring and automation.
As the term “Temperature Sensor” is used interchangeably, you have to be clear on what you are looking for. Temperature Sensor could refer to a thermal probe or a thermal probe connected to a sensor casing that houses the networking components to relay temperature data.
If you are looking to do remote IoT monitoring or automation, we would recommend looking up “wireless temperature monitoring sensors”.
Types of Temperature Monitoring System
Because of the various types of Data Loggers and Temperature Sensors, this results in various types of Temperature Monitoring System with different pros and cons.
We would advice companies to work with the Temperature Monitoring System that most suits their needs (and fall within their budget).
Temperature Monitoring Schematics Diagram
Wireless solution that only requires the gateway to be AC-powered and connected to the internet. Sensors are battery-powered and transmit the data wirelessly to the Gateway.
Pros: Good for supporting large volume of sensors. Hassle-free installation & maintenance and easy to scale by connecting additional sensors to the gateway.
Wired solution that only requires the sensors to be directly connected to the gateway via wiring, and the gateway has to be AC-powered and connected to the internet. Thermal Probe will be powered directly from the gateway.
Pros: Good for low number of sensors requirements, exportable temperature logs for audits, and low cost.
Wired solution that only requires the sensors to be connected to an extended hub which will relay the data wirelessly to the gateway. The gateway has to be AC-powered and connected to the internet, and the extended hub has to be AC-powered as well. The Thermal Probes are then powered by the extended hub.
Pros: Good for users who prefers to have the sensors to be AC-powered, maintain wireless connection between devices while still able to utilize wired sensors.