
Model | BlueTag TH20 | Memory Capacity | 65000 readings |
Shelf Life | 1 year | Start Delay | 0 minute-72 hours |
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 |












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 prefer PayPal, Western Union, and T/T for payments. Simply let us know your preference, and we will promptly provide our bank details. We are also flexible to accommodate your specific requirements.
Q3: How to place the order?
A3: You can place your order by sending us a purchase order via e-mail, Trade Manager, or Skype. Alternatively, request a Proforma Invoice from us, and we will gladly assist you with the process.
Q4: How long can I get my order?
A4: For sample orders, production and shipping are completed within 2-3 working days. For bulk orders, the timeframe is typically 5-20 working days, depending on your specific design requirements.
Q5: How to send us the products?
A5: We commonly use DHL, UPS, and FedEx for shipping our products, ensuring reliable and timely delivery.
Q6: Can you customize according to our designs and put our logo on the products?
A6: Absolutely! We offer both standard and customized products and can place your logo on them. Our skilled R&D team is available to support any technical queries. ODM/OEM services are warmly welcomed.