Environmental testing is critical for ensuring that materials, electronics, and devices perform reliably under real-world conditions. A Temperature Humidity Climate Chamber simulates precise temperature and humidity conditions, enabling accelerated life testing, stress screening, and durability validation in a controlled laboratory environment.
One year after acquiring our chamber, Rob, a procurement manager at an electronics firm, conducted a routine temperature and humidity check and shared his feedback: "Even though we haven't used the chamber heavily lately, it's still performing reliably." Let's take a closer look at the Temperature Humidity Climate Chamber and its capabilities.

LIB's Temperature Humidity Climate Chamber is designed to meet the rigorous demands of research, production, and quality assurance labs. With ultra-precise temperature and humidity control, robust construction, and intelligent automation, it helps engineers and QA specialists reproduce extreme environmental conditions safely and reliably. From electronics validation to automotive component testing, LIB chambers deliver repeatable, industry-compliant results every time.
1. Importance and Applications of Temperature Humidity Climate Chambers
Reliable environmental simulation is essential for product development. Temperature and humidity chambers allow companies to
identify weaknesses, verify product reliability, and accelerate testing. By simulating extreme conditions-from arctic cold to desert heat-these chambers reproduce 5–10 years of real-world exposure in just months, helping manufacturers discover vulnerabilities before market release and prevent costly failures or customer complaints.
Electronics industry: Circuits, PCBs, sensors, and batteries are tested for reliability under humidity, thermal cycling, and damp-heat conditions to prevent premature failure. LIB chambers support UL 2580, UL 2271, IEC 62660-2, UL 1642, UL 1973, SAE J2929, IEC 60068-2-30, and related standards.
Automotive applications: Components including wiring, connectors, and electronic modules are exposed to SAE J2334 and VW 80000 thermal-humidity cycles to ensure long-term durability under extreme environments.
Photovoltaic and renewable energy: Modules are validated for weathering and humidity resistance according to IEC 61215 and IEC 61730.
Pharmaceutical and biological samples: Controlled environments for stability studies ensure consistent testing of formulations, packaging, and storage.
High-reliability industries: Aerospace and defense use chambers to verify parts under extreme thermal-humidity conditions before field deployment.

Temperature Humidity Climate Chamber For Thermal Test
LIB chambers are versatile, precise, and compliant with multiple international standards, making them suitable for virtually any environmental testing scenario.
2.Testing Procedure of Electronics Using the LIB Temperature Humidity Climate Chamber
Testing electronics begins with a clear, repeatable workflow. LIB chambers streamline each step with precise control, robust construction, and data-driven reporting.
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Name | Temperature Humidity Chamber | ||||
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Model |
TH-100 |
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Internal dimension (mm) |
400*500*500 |
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Overall dimension (mm) |
860*1050*1620 |
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Capacity |
100L |
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Temperature range |
-20℃ ~+150 ℃ |
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Low type |
A: -40℃ B:-70℃ C -86℃ |
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Humidity Range |
20%-98%RH |
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Temperature deviation |
± 2.0 ℃ |
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Heating rate |
3 ℃ / min |
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Cooling rate |
1 ℃ / min |
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Controller |
Programmable color LCD touch screen controller, Multi-language interface, Ethernet , USB |
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Refrigerant |
R404A, R23 |
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Exterior material |
Steel Plate with protective coating |
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Interior material |
SUS304 stainless steel |
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Standard configuration |
1 Cable hole (Φ 50) with plug; 2 shelves |
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Timing Function |
0.1~999.9 (S,M,H) settable |
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| Robust Workroom | Cable Hole | Temperature and Humidity Sensor | PID controller |
Step 1: Sample Preparation
Prepare the electronic device or component according to IEC 60068-2 and ISO 16750. Ensure surfaces are clean, and identify components for monitoring.
LIB Advantage: Adjustable shelves, hanging racks, and customizable cable ports allow flexible placement of devices of any size, ensuring uniform exposure to temperature and humidity.
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Step 2: Temperature and Humidity Programming
Program the required cycles using the chamber touchscreen interface. Select temperature ranges from –70 °C to +150 °C and humidity ranges from 20 % to 98 % RH, with PID-controlled ramps of 3 °C/min heating and 1 °C/min cooling.
LIB Advantage: PT100 Class A sensors provide ±0.001 °C accuracy, ±0.5 °C temperature stability, and ±2.5 % RH humidity control. Multi-directional centrifugal fans eliminate hot or cold spots, ensuring uniform testing across all samples.
Step 3: Calibration Verification
Before each test, calibrate sensors and verify environmental uniformity. LIB chambers use 9-point internal temperature mapping and wet/dry bulb comparisons for humidity to guarantee precise readings.
LIB Advantage: Factory-calibrated sensors and pre-configured test profiles maintain consistency, reducing human error and ensuring data reliability.
Step 4: Running the Test
Activate programmed cycles for thermal shock, damp heat, or humidity freeze testing. Continuous monitoring records temperature, humidity, and event markers for traceability.
LIB Advantage: Closed-loop water recovery reduces water usage by up to 70 %, while energy-efficient insulation and variable-speed compressors cut power consumption by 20–30 %. Noise levels remain under 65 dB(A), maintaining a comfortable lab environment.
Step 5: Post-Test Analysis
After testing, remove samples and evaluate for corrosion, delamination, electrical failures, or material degradation. Export data in CSV or PDF for reporting and compliance.
LIB Advantage: Built-in logging and ISO/IEC-compliant reports save time, provide audit-ready documentation, and allow multi-chamber monitoring from a single PC via Ethernet or USB.
By following this procedure, engineers can quickly detect product vulnerabilities, validate designs, and optimize materials for long-term reliability.
》》》For more technical information and details about our Temperature Humidity Climate Chamber, please feel free to email us at info@libtestchamber.com.
3. Frequently Asked Questions About the Temperature Humidity Test Chamber
Q1: How is the temperature sensor calibrated?
A: Calibration is done post-assembly using nine temperature probes distributed across the chamber to cover all critical points. The measured values are averaged and compared to preset standards. Deviations are corrected via hardware adjustments, ensuring ±0.5 °C stability and uniform temperature distribution. Humidity is calibrated using the wet/dry bulb method relative to the temperature, achieving ±2.5 % RH accuracy.
Q2: What refrigerant is used in Europe, and can CO₂ be used?
A: LIB chambers comply with the latest European regulations effective January 1, 2024, requiring refrigerants with a GWP ≤ 150. CO₂ systems use different technology and cannot directly replace the current refrigerants.
Q3: Can the power connection cable have a plug instead of bare wires?
A: LIB recommends supplying your own plug. Leaving the chamber without a plug reduces wiring errors in laboratories and ensures safer operation.
Q4: What is the dew point temperature in the chamber?
A: The chamber primarily tests relative humidity (RH) rather than directly measuring dew point. Dew point can be calculated from temperature and RH if needed for specific applications.
Q5: How does LIB ensure compliance with standards?
A: LIB chambers are designed to meet IEC 60068, ISO 16750, IEC 61730, and other relevant standards for electronics, automotive, and photovoltaic testing. Continuous logging, precision sensors, and PID control ensure reproducible, certified test conditions.
LIB's Temperature Humidity Climate Chamber delivers precision, reliability, and operational efficiency for demanding environmental testing applications. From rapid thermal cycling to long-term damp-heat aging, these chambers help engineers identify weaknesses, verify product durability, and meet international standards. With factory-calibrated sensors, energy-efficient operation, and intelligent PID-controlled automation, LIB chambers simplify complex testing workflows while maintaining accurate, repeatable results.
Contact LIB Industry today to schedule a demo, discuss customization options, or find the perfect Temperature Humidity Climate Chamber for your research and production needs. Empower your team to accelerate testing, ensure compliance, and deliver reliable products every time.












