
Model | BlueTag TH20 | Memory Capacity | 65000 readings |
Shelf Life | 1 year | Start Delay | 0 minute-*** |
Operating Life | 200 days | Logging Interval | 1 minute-99 minutes |
Wireless Connection | Bluetooth 5.2, NFC (optional) | Battery | 3.0V CR2032 lithium battery |
APP Language | English, Chinese | APP OS | Android |
Temperature Unit | ºC, ºF | Report Format | PDF & CSV |
Temperature Range | -30ºC~+70ºC | Temperature Accuracy | ±0.5ºC at full range (-30ºC to +70ºC) |
Humidity Range | 0~100%RH | Humidity Accuracy | ±3.0%RH |
Weight | 36.5g | Dimension | 62mm*47mm*13mm |
Installation | 3M stickers, magnetic | Certification | CE, CE-RED, EN12830 |

BlueTag TH20 Bluetooth Temperature and Humidity Data Logger
Paired by Bluetooth and review history by APP
Support Android and IOS
Comprehensive data analysis, filtration and graphing
Data synchronization among multiple users.
Multilingual app
Free data filtering by minute
Battery replaceable













Freshliance Electronics Co., Ltd, founded in 2015, is an ISO9000-certified enterprise, located in Hengfengkechuang Center, Zhengzhou Airport Economy Zone, China. Our company specializes in the field temperature and humidity data loggers, and environmental monitoring IOT systems for warehousing, shipping and other cold chain processes in different industries like the fruits and vegetables, food processing, seafood, life science, pharmaceutical, and logistics.
We have a professional and innovative R&D team for hardware and software. All of our products are designed and produced based on customer needs and requirements. And our IOT platform based on WIFI and 4G/5G communications with sensors equipped with Bluetooth, Lora, or RF, can provide the solution you expect.
With the tenet of "Focus on fresh and safe life only", we have had nearly 10 million temperature and humidity data loggers in use all over the world and have gained a good reputation for the high accuracy for time, temperature and humidity, especially for low temperature under -30ºC. We have an independent temperature and humidity verification environment to verify the long-term performance of products in different temperature and humidity environments; and our temperature and humidity data loggers have complied with CE, FDA, ROHS, EN12830 and RTCA/DO-160 standards. In addition to stable performance and compliance with safety regulations, our products are easy to operate, durable, and advanced in functionality.
In the future, our goal is to continuously provide our customers with more innovative, accurate, and higher-quality products, as well as excellent customer service and support.
OEM and ODM orders are welcome!





10 million pcs logger used by the customer all over the world
Independent laboratory in-house verifying product performance
Ultimate production ability ensured by actual data
Professional FDA CE EN12830 ROHS certificated
A wide range of loggers to meet your diverse needs
Cost-effective based on expertise quality
24/7 customer service for fast response and delivery
Private label, complete one-stop OEM service
ISO certifed manufacturer and quality assurance
FAQ
Q1: Can I place sample order first?
A1: Yes, we will quote you different prices for small, medium and large qty. You can order with different price for different qty.
Q2: How could I pay them?
A2: We are delighted to offer you the ease and flexibility of choosing from PayPal, Western Union, and T/T for your transactions. Simply inform us of your preferred payment method, and we will promptly provide our bank details to facilitate the process. Should you have any other specific requirements, we are more than happy to accommodate your needs.
Q3: How do I place an order?
A3: Placing an order with us is incredibly straightforward! You can effortlessly send your purchase order via e-mail, Trade Manager, or Skype. To ensure a seamless and transparent transaction, feel free to request a Proforma Invoice, which will allow you to confirm every detail of your order with utmost precision.
Q4: What is the expected delivery time for my order?
A4: We pride ourselves on our swift delivery times. For sample orders, production and shipping are completed within a mere 2-3 working days. Bulk orders, depending on your specific design requirements, generally take between 5-20 working days. Rest assured, we make every effort to expedite your order's arrival.
Q5: What shipping methods do you use to send the products?
A5: We utilize the services of reputable couriers such as DHL, UPS, and FedEx to guarantee that your products are delivered swiftly and securely. With these trusted partners, we ensure that every shipment arrives on time and in perfect condition, providing peace of mind.
Q6: Are you able to customize products based on our designs and include our logo?
A6: Certainly! We offer a diverse range of both standard and customized products, and you have the exciting option to include your logo. Our highly skilled R&D team is fully equipped to address any technical inquiries, and we proudly provide ODM/OEM services to bring your unique vision to life with unmatched precision and quality.