
Model | BlueTag TH30B | BlueTag TH30R | BlueTag TH30R-ETU |
External Probe Type | N/A | Temperature probe Temperature and humidity probe | Temperature probe |
Temperature Range | -30ºC~+70ºC (Built-in sensor only) | -30ºC~+70ºC (Built-in/External probe) | -30ºC~+70ºC (Built-in sensor) -60ºC~+200ºC -80ºC~+200ºC -90ºC~+200ºC -196ºC~+400ºC (External probe) |
Temperature Accuracy | ±0.5ºC F.S. | ±0.5ºC (-90ºC~+70ºC); ±1.0ºC (Others) | |
Temperature Units | ºC, ºF | ||
Humidity Range | 0-100%RH | 0-100%RH (Built-in sensor only) | |
Humidity Accuracy | ±3.0%RH | ±3.0%RH (Built-in sensor only) | |
Alarms | High and low alarms, max. 6 alarm points per sensor/probe | ||
APP OS | Android/IOS | ||
Report | PDF/CSV | ||
Connection | Bluetooth 5.2 | ||
Start Delay | 0min ~72h | ||
Logging Interval | 1min ~99min | ||
APP Language | Chinese, English | ||
Memory Capacity | Max. 20,000 readings per probe | ||
Screen Size | 66mm*57mm*2mm | ||
Device Dimensions | 83mm*68mm*20.5mm | ||
Battery | 2*Replaceable AAA batteries | Rechargeable lithium battery | |
Installation | Hanging, folding stand | Magnetic suction, hanging, folding stand | |
Weight | 85g | 90g (Main device) |

Features
Paired by Bluetooth and review history by APP
Support Android and IOS
Comprehensive data analysis, filtration and graphing
Data synchronization among multiple users.
Free data cloud storage for 2 years










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 loggers used by customers worldwide.
In-house independent laboratory for verifying product performance.
Ultimate production capability ensured by precise data.
Professionally certified with FDA, CE, EN12830, and ROHS.
A wide range of loggers to meet various needs.
Cost-effective solutions based on expert quality.
24/7 customer service for rapid response and delivery.
Private label and comprehensive one-stop OEM service.
ISO-certified manufacturer with assured quality.
FAQ
Q1: Can I place a sample order first?
A1: Yes, we offer tiered pricing for small, medium, and large quantities. You can place orders at different prices based on the quantity.
Q2: How could I pay for them?
A2: We accept PayPal, Western Union, and T/T as preferred payment methods. Just let us know which one you prefer, and we will provide our bank details promptly. We can also accommodate specific payment requirements you may have.
Q3: How do I place an order?
A3: Placing an order is a breeze! Simply send your purchase order via e-mail, Trade Manager, or Skype. You may also request a Proforma Invoice from us to ensure a smooth and seamless transaction process.
Q4: What is the delivery timeline for my order?
A4: For sample orders, we ensure production and shipment within a swift 2-3 working days. For bulk orders, the production and shipping timeframe ranges from 5-20 working days, tailored to your specific design requirements.
Q5: What shipping methods do you use to deliver the products?
A5: We primarily rely on top-tier courier services like DHL, UPS, and FedEx, guaranteeing that your products arrive quickly and securely.
Q6: Is it possible to customize products with our designs and logo?
A6: Absolutely! We offer comprehensive support for both standard and customized products. Incorporating your logo is no problem. Our expert R&D team is here to assist with any technical inquiries, and we welcome ODM/OEM partnerships.