Portable Cold Heat Controlled Temperature Humidity Test Chamber

The LIB benchtop temperature and humidity test chamber features a space-saving design with chamber capacities available from 50 L to 80 L, making it well-suited for evaluating compact products such as circuit boards, sensors, electronic assemblies, and other precision components. Operating at a low noise level of no more than 65 dBA, it can be used comfortably in laboratories, offices, and research environments without causing significant disruption. The advanced programmable controller allows users to create up to 120 test programs, each containing as many as 100 steps, enabling fully automated execution of complex climatic test profiles. Equipped with an optimized air circulation system and a corrosion-resistant SUS304 stainless steel workspace, the chamber delivers consistent temperature and humidity distribution, ensuring reliable and repeatable test results for product development, performance validation, and quality control applications.

Technical Advantages

1. Ultra-Quiet Operation: The benchtop temperature and humidity chamber operates at ≤65 dBA, which is quieter than many common laboratory devices. Even during continuous temperature and humidity cycling, the system runs smoothly with minimal sound. An optional silent mode further reduces operational noise, making it well suited for research labs, cleanrooms, and shared workspaces where low acoustic disturbance is important.

2. Space-Saving Benchtop Design: Engineered for laboratories with limited space, the TH50 benchtop environmental chamber measures approximately 820 × 1160 × 950 mm. Its compact footprint allows installation directly beside laboratory benches or under ventilation hoods, enabling full environmental testing capability without occupying large floor areas.

3. Wide Environmental Simulation Range: This compact environmental chamber provides an extensive test range from –86 °C to +150 °C with 10 % to 98 % RH humidity control. A high-efficiency refrigeration unit combined with responsive electric heating enables accurate simulation of extreme cold, high heat, and humid climates, making the chamber suitable for testing electronics, materials, batteries, and components under demanding environmental conditions.

4. High Precision and Uniform Test Conditions: Equipped with PT100 Class A sensors and a measurement resolution of 0.001 °C, the chamber achieves stable environmental control. Intelligent PID regulation maintains temperature stability within ±0.5 °C and humidity stability within ±2 % RH. Optimized airflow generated by centrifugal fans distributes air evenly inside the chamber, ensuring consistent exposure for all test samples.

5. Efficient Heating and Cooling Performance: The chamber supports heating rates up to 3 °C/min and cooling rates around 1 °C/min, enabling faster environmental transitions and shorter test cycles. With programmable sequencing, multiple temperature and humidity stages can run automatically in one program, improving testing efficiency and reducing manual operation.

6. Durable Construction and Safety Protection: The interior chamber is built with SUS304 stainless steel, providing excellent resistance to corrosion in humid environments. The outer structure uses reinforced 4 mm A3 steel with protective coating for long-term durability. Integrated safety systems—including over-temperature protection, leakage current monitoring, grounding protection, and phase sequence detection—ensure reliable operation while protecting both equipment and test specimens.

Technical Specifications 

Typical Tests

The Portable Cold Heat Controlled Temperature Humidity Test Chamber supports a variety of environmental simulations to evaluate product reliability under different conditions. It can perform thermal shock cycling between –40 °C and 85 °C to assess structural stability, as well as thermal cycling tests from 0 °C to 70 °C to simulate repeated temperature fluctuations. High- and low-temperature exposure tests, such as 85 °C heat or –20 °C cold, help verify performance in extreme climates. The chamber also conducts humidity and damp heat tests at up to 85 % RH to evaluate moisture resistance, while shelf life and storage tests maintain stable conditions around 25 °C with moderate humidity to observe long-term stability. Additionally, humidity freeze cycles between –20 °C and 25 °C simulate alternating cold and humid environments, and hydrolysis aging tests at 20 °C to 70 °C with high humidity help analyze material degradation over time. All test parameters are continuously monitored to ensure precise, stable, and repeatable results.

Video Showcase

FAQs on the Portable Temperature and Humidity Test Chamber

Q1: What types of samples are suitable for testing in a portable temperature and humidity chamber?

Portable chambers are ideal for testing small and medium-sized samples such as electronic components, PCBs, sensors, batteries, connectors, and material specimens. Their compact workspace is designed for laboratory research, product development, and reliability verification of precision devices.

Q2: Can the chamber run long-term automated environmental tests?

Yes. The chamber features a programmable controller that supports multiple test programs and step sequences. This allows users to set complex temperature and humidity cycles that can run automatically for hours or even days without manual intervention.

Q3: How does the chamber ensure stable temperature and humidity conditions during testing?

The system uses high-precision sensors and intelligent PID control to regulate temperature and humidity. Combined with an optimized airflow design, this ensures uniform environmental conditions throughout the chamber, providing accurate and repeatable testing results.