Temperature Data Logger Explained

Temperature Data Logger Explained

What is a Temperature Data Logger?

A temperature data logger is a device used to automatically measure and record temperature readings over time. It helps businesses monitor temperature-sensitive environments such as cold rooms, freezers, laboratories, and storage facilities, ensuring compliance, product safety, and accurate temperature records without manual checks.

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Temperature Data Logger for Compliance

Singapore’s strict regulations from authorities like SFA (Singapore Food Agency) and HSA (Health Sciences Authority) require businesses in food, healthcare, and biotech sectors to maintain precise temperature records.

Temperature monitoring negligent incidents are evident of the importance of temperature monitoring.

Frozen Seafood
Wine
Vaccines & Medications
Human Specimen

TT18 4G Temperature Humidity Sensor

TT18 4G Temperature Humidity Sensor

No setup needed, turn on the temperature data logger and deploy into your warehouse or truck to begin logging data. Access the data in real time from IOT-ezy cloud platform.

4G wireless connectivity
Data storage and transmission (20,000 readings)

Brand: TZone
Model: TT18-4G-M

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Temperature Data Loggers

Our temperature data loggers automate recording, send instant alerts, and generate audit-ready reports—making compliance simple and protecting your assets effortlessly.

Temperature Data Logger Technologies Compared: WiFi, BLE, LoRaWAN, Cellular & Sigfox

Technologies	Signal Range	Penetrative Capabilities	Power Requirements	Mesh Availability	Cost to implement	Applications
WiFi	30–100 m indoors, up to 300 m outdoors	Poor through walls/obstacles	High (requires AC / DC power supply usually)	No	Medium	Offices, labs, small cold rooms, warehouses with good coverage
BLE	10–50 m indoors, up to 100 m outdoors	Poor (signal easily blocked by walls/metal)	Very low (battery can last months to years)	Limited (requires gateway for mesh)	High	Portable loggers, short-range monitoring, fridges, small labs
LoRaWAN	2–10 km (urban), 10–15 km (rural)	Moderate (penetrates walls/buildings better than WiFi/BLE)	Very low (battery lasts years)	Limited (some support mesh via repeaters)	Medium	Large warehouses, cold chain, outdoor storage, city-scale deployments
Cellular (4G/LTE, NB-IoT)	Nationwide coverage	Good (depends on network, generally strong)	Medium (battery can last weeks to months)	No	Low	Remote locations, logistics vehicles, distributed storage facilities, pharma transport
Sigfox	10 km (urban), 50 km (rural)	Moderate (penetrates walls moderately)	Very low (battery lasts years)	No	Medium	Large-area, low-data reporting

Data Logger Primary Feature

temperature data logger read data

Read temperature data

temperature data logger record data

Log temperature data

temperature data logger export data

Export data to file / cloud

Applications of Temperature Data Loggers

🧪 Pharmaceuticals & Laboratories
Monitor cold storage for vaccines, reagents, and biological samples.
🥶 Cold Chain & Logistics
Ensure consistent temperature during transportation of perishable goods.
🏥 Hospitals & Clinics
Monitor vaccine refrigerators and medication storage.
🍱 Food & Beverage
Maintain food safety in cold rooms, display chillers, and walk-in freezers.
💻 Data Centers & Server Rooms
Prevent equipment failure by tracking temperature in critical infrastructure.

lab cold chain monitoring

Laboratory

Medical | Research | Clinical | Biotech

Regulatory Compliance Risks: Labs must comply with GLP, GDP, ISO 17025, NPRA, WHO, FDA standards.
Sample & Specimen Integrity: Sensitive biological samples (e.g., blood, vaccines, cultures) can degrade if exposed to incorrect temperatures.
Manual Monitoring Issues: Staff manually checking temperatures increases errors and compliance risks.
Equipment Failures: Refrigerators/freezers can fail unexpectedly, leading to loss of valuable research materials.
Audit & Documentation Challenges: Lack of real-time tracking makes it hard to prove compliance during audits.

food cold chain monitoring

Food Cold Storage

Hotels | Restaurants | Suppliers | Catering

Food Spoilage & Safety Risks: Perishable foods (meat, dairy, seafood) require strict temperature control to prevent contamination.
Regulatory Non-Compliance: Must meet HACCP, FSMA, FDA, Malaysia Food Act 1983 guidelines.
Energy Consumption & Costs: Inefficient refrigeration leads to high energy bills.
Manual Checks & Human Errors: Staff manually logging temperatures can miss fluctuations.
Supply Chain Issues: Temperature excursions during transit can cause losses and rejections.

pharmaceutical cold chain monitoring

Pharmaceutical Warehouse

Vaccines | Medicines | Medical Devices

Strict Regulatory Compliance: Must meet GDP, WHO, NPRA, FDA, GxP storage guidelines.
Temperature-Sensitive Medicines & Vaccines: Many pharmaceuticals degrade if exposed to incorrect temperatures.
Financial Losses Due to Spoilage: A single batch of vaccines can cost thousands if compromised.
Lack of Real-Time Monitoring: Traditional monitoring methods fail to detect fluctuations in time.
Supply Chain Integrity: Cold chain failures during distribution lead to wasted stock.

cold chain monitoring benefits

Benefits of Temperature Data Logging

Savings on manpower

Maintain product standards

Paperless for sustainability

Identify opportunities for power savings

Start monitoring

Frequently Asked Questions

A temperature data logger works by using a built-in temperature sensor to continuously detect changes in ambient conditions. Although the sensor monitors temperature in real time, the device saves readings at programmed intervals—such as every 1, 5, or 10 minutes—so users can track trends, identify fluctuations, and generate accurate reports. Once the data is recorded, it can be downloaded or viewed through software or a mobile app for analysis, compliance, or audit purposes.

Temperature data loggers typically do not record every second because doing so would drain the battery quickly and fill up the device’s memory at a much faster rate. Since temperature does not usually change drastically within a few seconds, logging at longer intervals—such as every minute or every five minutes—provides accurate trend data while maximizing battery life, storage efficiency, and overall device performance.

Our cheapest temperature data loggers can be as low as $100~ and the most expensive ones can be in the $1000~ range.

We have to consider many factors such as the application of the data logger and industry usage.

Price
Measurement range and accuracy
Food safe material
Probe or no probe
Battery or socket powered

There are many other considerations, contact us for a free consultation.

A temperature sensor is a device that detects and measures temperature, but it may not have the ability to store readings. A temperature data logger, on the other hand, includes both a sensor and built-in memory, allowing it to record, timestamp, and store temperature data over time. While some companies use the terms interchangeably, a data logger is specifically designed for continuous monitoring, data storage, and later analysis.

To use a temperature data logger, place or install the sensor in the area where temperature monitoring is required. Installation methods vary depending on the type of logger—some can be mounted with cable ties, adhesive, magnets, or probe inserts. Before choosing a device, it’s important to assess the site conditions and equipment to ensure the logger is installed securely and can capture accurate temperature readings.

A traditional data logger records and stores temperature data locally, meaning you must physically retrieve the device to download the readings. An IoT temperature data logger offers the same core logging features but adds wireless connectivity—such as Wi-Fi, LoRaWAN, or cellular—to automatically transmit data to a cloud platform or on-premise server. This allows users to monitor temperature remotely, receive alerts, and access data anytime without needing to interact with the device directly.

Temperature dataloggers are widely used in Singapore across industries such as cold chain logistics, food storage, pharmaceuticals, laboratories, data centres, and HVAC maintenance. These devices help businesses comply with strict local standards for temperature monitoring, especially in regulated sectors like MOH, SFA, and HSA environments.

When selecting a temperature datalogger, consider factors such as the required temperature range, sensor type (internal or external probe), logging interval, battery life, accuracy, and whether you need real-time IoT monitoring. For Singapore’s humid climate, it’s also important to choose a logger that can operate reliably in high-moisture environments like cold rooms and refrigerated trucks.

If you only need basic temperature tracking and can manually retrieve data, an offline temperature datalogger is sufficient. However, if your operations require real-time alerts, remote monitoring, or 24/7 oversight—common in Singapore’s cold chain, food storage, and pharmaceutical sectors—an IoT temperature datalogger is more suitable. It automatically uploads data to the cloud, helping you prevent spoilage, meet compliance, and respond quickly to temperature excursions.

Additional Data Logging Resources

Learn more about our IoT systems

Temperature Monitoring System

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Cold Chain Monitoring

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Food Safety Monitoring System

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HACCP Monitoring System

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