In recurring cold chain monitoring shipments, a single use data logger proves costly. A data logger with a replaceable battery is also costly and also generates a lot of electronic waste. A rechargeable data logger is both environmental and operational friendly.
In this blog, we discuss what a rechargeable data logger is, how it works, is it worth the investment, its applications and how to choose the right rechargeable data logger for your cold chain monitoring.
What is a rechargeable data logger?
A rechargeable data logger is an environmental monitoring device that tracks temperature, humidity, and other conditions over time. It runs on a battery that can be recharged, so you can use the same device again and again instead of replacing it after every use.
Inside the device, sensors take readings at set intervals. These readings get stored in the logger’s memory. Many models also send the data straight to a cloud platform, so you can check conditions in real time without waiting for the shipment to arrive.
Once the battery runs low, you charge it through a USB port or a charging dock. After a full charge, the logger is ready for the next shipment or monitoring cycle. This makes it different from single-use loggers, which have a sealed battery that cannot be charged.
Rechargeable data loggers are common in cold chain monitoring. Businesses that ship pharmaceuticals, vaccines, or perishable food use them to track conditions from the point of dispatch to delivery. Since the device can be reused across many shipments, it lowers the cost per shipment and reduces electronic waste compared to single-use loggers.
Lisaline Asia supplies the Tempmate GM2 rechargeable data logger built for real time monitoring during storage and transportation. The GM2 runs on a rechargeable Lithium-Ion battery, so it can be used across multiple shipments instead of being thrown away after one trip.
How does a rechargeable data logger work?
A rechargeable data logger works in a few connected stages: sensing, recording, storing, transmitting, and charging.
Sensing
The device has built-in sensors that measure conditions like temperature, humidity, light, tilt, shock, or location. These sensors take readings at a fixed interval, which you can usually set. A common default is one reading every 10 minutes, but this can be adjusted depending on how closely you need to monitor the shipment.
Recording and storing data
Each reading gets saved to the device’s internal memory. Loggers like the Tempmate GM2 can hold up to 50,000 readings locally.The internal memory acts as a backup. Even if the device loses network connection, it keeps recording data without any gaps.
Transmitting data
Since the data logger has connectivity to 4G and GSM connectivity. It sends the stored readings to a cloud platform like the tempmate cloud. This lets you check the shipment’s condition in real time from a phone or computer, instead of waiting until the device is returned. You can view the live status of your shipment from any corner of the world. If the connection drops, the readings stay in local memory and get pushed to the cloud automatically once the connection is restored. No data is lost during the gap.
Power source and charging
The data logger device runs on a battery, usually Lithium-Ion, that The data logger is powered by a Lithium ion battery which powers the sensors, memory and wireless transmission. Once the battery runs low, you plug the logger into a USB port or charging dock. After charging, the device is ready to use again on the next shipment. This is what makes the data logger rechargeable.
Data access after the trip
Once the shipment reaches its destination, you can review the full data history on the cloud platform. This usually includes a graph of readings over time, along with any alerts triggered if temperature or humidity crossed a set limit. Some loggers also let you download this as a PDF or CSV report through USB, as a backup in case cloud access was unavailable during transit.
Tempmate GM2: Rechargeable data logger from Tempmate, offered by Lisaline Asia
Lisaline Asia · Official Tempmate Supplier
Tempmate® GM2 Rechargeable Data Logger
4G connectivity, a reusable Li-ion battery, and cloud based shipment visibility from anywhere in the world.
Runtime
120 days
per charge
Memory
50,000
readings stored
Battery
3,500 mAh
rechargeable Li-ion
Connectivity
4G + 2G
fallback, plus USB
Global connectivity, no setup needed
4G with 2G fallback
Sends data in real time to tempmate cloud over GSM global connectivity. Monitor your shipment from any corner of the world, since mobile networks are available almost everywhere.
Built in SIM
A built in SIM offers global GSM coverage to the device. No separate contract or data plan is needed to use it.
Multi parameter monitoring
Storage, uploads, and zero data loss
Default log settings
Stores up to 50,000 readings in internal memory. On default settings, it logs a reading every 10 minutes and uploads to the cloud every 4 hours, giving 120 days of runtime on a single charge.
Fully configurable
Log interval and upload frequency can be changed through tempmate cloud. You are not locked into the default settings.
Offline data handling
If the GSM signal drops during the shipment, the device keeps recording locally. Once the connection is restored, stored data is automatically pushed to tempmate cloud.
Rechargeable battery
Uses a rechargeable 3,500 mAh Lithium-ion battery, built into the device. It recharges through the Micro-USB port, which is also used to download PDF reports.
On device visibility
Button controlled LCD display
Check live status and current readings on the device display at a glance, without needing to open the cloud platform.
Built for regulated shipments
The Tempmate GM2 is built for supply chain monitoring. It is especially suited for pharma and other regulated goods, where GDP aligned real time visibility matters.
Rechargeable Data Logger Worth the Investment?
The Tempmate GM2 is a leading cold chain shipment monitoring data logger. It is a rechargeable data logger that allows real time monitoring with cloud integration and instant alerts. Here are the benefits it offers:
1. Remote shipment monitoring
The Tempmate GM2 rechargeable data logger allows remote shipment monitoring from anywhere in the world. You can view the readings, get real time alerts, and download audit ready PDF/CSV reports from anywhere in the world. This gives you flexibility. You do not need to be present with the shipment to access the data.
2. Reduces cost of operations for recurring shipments
For recurring shipments, a single use data logger like Tempmate GS2 can prove very expensive since it is not returned or usually discarded after the shipment monitoring is done. A rechargeable data logger like Tempmate GM2 reduces the cost of operations. It is a data logger that can be used multiple times for recurring shipments of vaccines, blood products, pharmaceuticals, etc.
3. Uses 4G with 2G fallback
For continuous data transmission to the cloud platform, the Tempmate GM2 switches network according to the signal and available connectivity. If a proper network is not available at 4G to transmit the data to the cloud platform, the data logger switches to lower modes like 2G so that data transmission is not interrupted. Also, in case there are network outages, the data logger does not stop recording the data and the data is not lost. Instead, since the data logger stores the data in its internal memory first, which acts as backup, the data is not lost and will be automatically transmitted to the cloud platform when network connectivity returns.
4. Good internal memory
The Tempmate GM2 has a good internal memory of 50,000 readings. With unlimited cloud storage, the rechargeable data logger ensures no data is lost.
5. Rechargeable battery
The Tempmate GM2 features a lithium ion battery which is rechargeable when the data logger is plugged in through the USB port. When the USB port is plugged into a laptop, you can also retrieve the data and download reports. The rechargeable battery allows the data logger to be used multiple times for several shipments.
6. Multi parameter monitoring
The Tempmate GM2 rechargeable data logger allows multi parameter monitoring. It monitors temperature, humidity, light, shock, tilt and location. It gives you an all round idea of the environmental conditions your products are being exposed to.
7. Instant SMS and email alerts
The Tempmate GM2 does not just record data, it also alerts you the moment something goes wrong. If a reading crosses your pre-set alarm threshold, the tempmate cloud platform sends an instant SMS or email alert. This lets your team act on a temperature excursion right away, instead of finding out after the shipment has already arrived.
8. On device LCD display
The Tempmate GM2 comes with a button controlled LCD display. You can check the current reading, battery level, network status and alarm status directly on the device. Field teams can use this to check status on the spot, without having to log into the cloud platform.
9. Built in SIM, no extra setup
The Tempmate GM2 comes with a built in SIM card and global connectivity included. You do not need to source a separate SIM or set up a data plan. This makes it easier to deploy the device straight out of the box, with no added coordination.
10. Suited for regulated and compliance heavy shipments
The Tempmate GM2 is built for supply chain monitoring in regulated industries. It comes with certifications like CE, EN12830, RoHS and FCC, along with GDP aligned reporting. This makes it a reliable fit for pharmaceuticals, vaccines and other temperature sensitive goods where compliance documentation is non-negotiable.
11. Ready for air freight
The Tempmate GM2 carries UN38.3 and DO-160G certifications. This means the device meets the safety standards required for lithium battery transport on aircraft, so it can be used for air shipments without added compliance hurdles.
12. Lowers electronic waste
Since the Tempmate GM2 is reusable and rechargeable, it does not need to be discarded after every shipment like a single-use logger. This reduces the amount of electronic waste generated over time, which matters for companies running high volume or frequent shipment operations.
Therefore, from all the benefits discussed above, the Tempmate GM2 data logger is worth the investment. It gives you remote visibility into your shipment from anywhere in the world, so you are never dependent on being physically present to know what is happening to your goods. For any business handling recurring, temperature sensitive shipments, the Tempmate GM2 is not just a good option. It is the smarter, more cost effective choice in the long run.
What are the applications of a rechargeable data logger?
A rechargeable data logger is used for recurring cold chain shipments, usually of high value which cannot afford risking an unnoticed temperature excursion. These are used for shipments of critical products like pharmaceuticals, vaccines, and blood products which are products that can save lives. Therefore there should be continuous monitoring into the environmental conditions these products are exposed to. Tempmate GM2 rechargeable data logger is the perfect fit, offering accurate real time monitoring from any corner of the world.
Here are some of the applications of the rechargeable data logger:
1. Pharmaceutical shipments
Pharmaceutical products often need to stay within a strict temperature range from the manufacturing site to the pharmacy or hospital. Even a short excursion outside this range can reduce the effectiveness of the drug or make it unsafe to use. A rechargeable data logger like the Tempmate GM2 tracks temperature continuously through the entire journey, so any deviation is flagged immediately and can be acted on before the shipment reaches its destination.
2. Blood products
Blood products are highly sensitive to temperature. Blood bags, plasma, and red blood cells need to be kept within specific ranges to remain safe for transfusion. Since these products are often transported between hospitals, blood banks, and collection centres on a regular basis, a rechargeable data logger is a practical fit. The GM2 can be reused across every transport cycle while giving real time visibility into the conditions the blood products are exposed to.
3. Vaccines, vials
When it comes to the most temperature sensitive products in the cold chain, vaccines stand out. Many vaccines lose their potency permanently if exposed to temperatures outside their approved range, even briefly. Since vaccine shipments are recurring, especially during immunization drives, a rechargeable data logger offers a cost effective way to monitor every batch without needing a new logger each time.
4. Biologics
Biologics, including monoclonal antibodies, cell and gene therapy products, and other biologically derived treatments, are extremely sensitive to temperature fluctuations and often carry a high per unit value. A single excursion can compromise an entire batch. Because biologics shipments are frequent and ongoing, especially for manufacturers and distributors, a rechargeable data logger like the GM2 offers continuous, real time monitoring across every shipment without the recurring cost of single use devices.
5. Organ and tissue transport
Organs and tissues intended for transplant must be kept within a narrow temperature window during transport. Any delay or temperature excursion can affect their viability. A rechargeable data logger provides continuous, real time tracking during transport, which allows medical teams to confirm conditions were maintained throughout the journey.
How to choose right rechargeable data logger for monitoring cold chain shipments?
You should consider the following factors when choosing a rechargeable data logger for monitoring your cold chain shipments:
Trusted reputation
While choosing the right rechargeable data logger for monitoring your cold chain shipments, you should consider if the data logger has a trusted reputation for monitoring shipments of pharmaceuticals, blood products, and vaccines. The data logger should come from a trusted name. This ensures that you are provided with accurate environmental data.
The Tempmate GM2 is manufactured by Tempmate, a name trusted globally for cold chain monitoring, and is supplied in India by Lisaline Asia, an official Tempmate distributor with over 25 years of experience in cold chain monitoring solutions.
Real time monitoring
Next, you should check if the data logger provides real time monitoring or not. For high value shipments of life saving products like vaccines, blood products, and pharmaceuticals, even a single temperature excursion going unnoticed can cause serious issues, sometimes shipment failure due to an entire batch of vaccines getting affected, or risking the administration of damaged products to patients. Therefore, always choose a rechargeable data logger with real time monitoring.
Choosing a real time rechargeable data logger like Tempmate GM2 will help you view live data concerning your shipment, monitor multiple shipments from a dashboard, and receive real time alerts through SMS and email so you can proactively reduce excursions. You can also download audit ready PDF/CSV reports anytime and present them whenever needed for inspections and compliance. Through the tempmate cloud dashboard you can also view multiple shipments at once.
Network reliability and signal switching
Further, choose a rechargeable data logger that offers good internal memory and does not cause data loss when network connectivity drops. Also look for a rechargeable data logger which adjusts according to network signal strength, switching to lower network modes like 3G and 2G when signal is weak, ensuring uninterrupted and continuous data transmission.
The Tempmate GM2 uses 4G with 2G fallback, so it automatically switches to a lower network mode when signal is weak, keeping data transmission uninterrupted throughout the shipment.
Offline data backup
The data logger should also store the data in its internal memory first, so it has a backup in case the network goes down. Then, when the network comes back, the device can automatically transmit the stored data to the cloud platform.
The Tempmate GM2 stores up to 50,000 readings in its internal memory, and if the GSM signal drops during a shipment, it keeps recording locally and automatically transmits the data stored in the internal memory to the cloud when connectivity returns.
Compliance with regulatory standards
Choose a data logger that adheres to compliance standards set by regulatory bodies, which helps you during audits and inspections. The Tempmate GM2 carries CE, EN12830, RoHS, and FCC certifications, along with GDP aligned reporting, making it a reliable fit for regulated shipments of pharmaceuticals and other temperature sensitive goods.
Battery life and rechargeability
Check how long the data logger can run on a single charge, and whether the runtime fits your shipment duration. A rechargeable data logger with a short battery life can leave you exposed mid shipment if it dies before the goods reach their destination. Also check how the device is charged, since a simple USB charging option makes it easier to reuse the logger between shipments without added equipment.
The Tempmate GM2 runs up to 120 days on a single charge under default settings, and recharges through its USB port, which can also be used to download reports.
Multi parameter monitoring capability
Some shipments need more than just temperature tracking. A rechargeable data logger that also monitors humidity, light, shock, tilt, and location gives you a fuller picture of how your goods were handled during transport, not just what temperature they were exposed to.
The Tempmate GM2 monitors temperature, humidity, light, shock, tilt, and location, giving you an all round view of the environmental conditions your shipment was exposed to.
Built in SIM and global connectivity
Check if the rechargeable data logger comes with a built in SIM card offering global coverage. This removes the need to source a separate SIM or set up a data plan for each region your shipments pass through, which matters if you ship internationally or across multiple states.
The Tempmate GM2 comes with a built in SIM offering global GSM coverage, so you do not need to source a separate SIM or set up a data plan.
Ease of use and setup
A rechargeable data logger should be simple to start, configure, and operate, ideally with a button controlled display so field teams can check status without needing to log into a cloud platform. Complicated setup processes slow down operations and increase the chance of user error.
The Tempmate GM2 features a button controlled LCD display, letting you check live status, current readings, battery level, and alarm status directly on the device at a glance.
Cost of ownership over time
Look beyond the upfront price of the rechargeable data logger and consider the total cost of ownership, including battery life, durability, and how many shipments it can support before needing replacement. A slightly higher upfront cost can work out cheaper over time if the device lasts longer and needs fewer replacements.
Since the Tempmate GM2 is reusable and rechargeable, it replaces the need to purchase a new logger for every shipment, lowering the overall cost of operations for recurring cold chain routes over time.
Conclusion: Why Choose Lisaline Asia for Rechargeable Data Logger?
Lisaline Asia is the official supplier and distributor of Tempmate data logger models in India. Sourcing your rechargeable data logger from a licensed supplier guarantees authentic products with proper labelling, backed by trust and used across cold chain applications worldwide. You get complete manufacturer support, packaging, and warranty, along with a calibration certificate and compliance documentation.
Lisaline Asia is the local distributor of the Tempmate GM2 in India. We provide complete technical assistance in setting up your rechargeable data logger device. You get full support for installation, commissioning, setup, and configuration of the data logger, along with pairing it with the tempmate cloud platform, setting monitoring intervals, alarm configuration, and more. So you get a ready to use rechargeable data logger device that you can directly deploy for cold chain shipment monitoring.
Lisaline Asia offers additional services including in house or on site calibration from an ISO 17025 certified, NABL accredited facility, WHO PQS certified IQ/OQ validation, PQS testing, thermal mapping, round the clock online assistance, and complete after sales support under annual maintenance contracts.
When you choose Lisaline Asia, you get the backing of a reputed cold chain monitoring solutions provider, offering extended product support, after sales service, spare parts coordination, technical assistance, and customer service across India, South Asia, and the Middle East.
When you choose Lisaline Asia, you are not just choosing a rechargeable data logger supplier, you are choosing a cold chain monitoring partner that provides end to end, audit ready cold chain solutions throughout your journey.
