Inkbird USB Thermometer Hygrometer THC-4 Temperature and Humidity Data Logger, LCD Display


Please note that it only work XP and windows 7/8 PC. 

Temperature Data Logger allows easy monitoring and record temperature and humidity sensitive systems, in transit or in storage of foodstuff, chemicals, medicine, and other products. Especially widely used for all kinds of warehousing, logistic and cold chain, such as refrigerated containers, refrigerated trucks, refrigerated package, cold storage, and laboratory, ect.

It is also ideal for monitoring building services, scientific experiments, production processes, and heating, ventilation and air conditioning systems.
The data logger display interface includes: temperature and humidity status display, Max. temperature and humidity status display, Min. temperature and humidity status display, temperature and humidity upper limit alarm display, temperature and humidity lower limit alarm display, record capacity display, time and date display.

Main features
1.It has internal temperature and humidity sensor and with optional external temperature sensor and internal buzzer alarm. If external temperature sensor is connected, the temperature measuring will automatically switch to the external temperature sensor. 
2. Display temperature and humidity, time, over limit alarm, temperature/humidity upper/lower limit, temperature Max./Min. value in the LCD display. It has one CR2450 battery with the battery compartment on the back. Rotate and tighten the battery cover counter clockwise after battery replacement. 
3. Directly connect with computer for data exchange, easy operation. 
4. It could also be powered by USB cable when connected with PC and it could upload the data even if the battery is out of use. 
5. Permanent data storage, data could be read and printed by PC data management software. 


  • Temperature measurement Range: -22°F -185°F 
  • (for optional external sensor: -40°F -185°F 
  • Temperature accuracy:-22°F to 140°F, ±1.0°F, others, ±2.0°C; 
  • (-30°C to +60°C, ±0.5°C, others, ±1.0°C) 
  • Scales: °C and °F, setting through THC-4 data management software. 
  • Humidity measurement Range: 0 – 99%RH 
  • Humidity accuracy: ±3%RH (77°F /25°C, 20 – 90%RH), others, ±5%RH 
  • Display Resolution: Temperature 0.1°F /0.1°C, Humidity 0.1%RH 
  • Record capacity: 16000 ponits(MAX) 
  • Product size: 3.54*1.85*0.67inches 
  • Record interval: 10s – 24 hours adjustable 
  • Communication interface: USB interface 
  • Power supply: Inner CR2450 battery or power supply via USB interface 

Package Content: 
  • 1 x THC-4 Data Logger 
  • 1 x CR2450 battery (Installed inside) 
  • 1 x Humidity External Sensor 
  • 1 x USB Cable 
  • 1 x Software CD 
  • 1 x Instruction Manual
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