Unlike short-cycle environmental tests, this chamber focuses on long-term stability, aging behavior, and performance drift under constant temperature and humidity settings. It is widely used in electronics, automotive components, pharmaceuticals, materials science, and quality assurance laboratories.

LIB industry constant temperature humidity chamber offers an ultra-wide temperature and humidity operating range with precise control accuracy, ensuring reliable and repeatable test results even during continuous operation lasting days or weeks.

Key Features

Constant Temperature Humidity Chamber

Wide Temperature & Humidity Coverage

This wide coverage allows the chamber to support most common constant-condition test points, including industry-standard environments such as 85℃ / 85%RH and 40℃ / 90%RH.

High Stability Control Performance

The chamber maintains stable environmental conditions throughout the entire test duration, designed for long-term constant testing. For accelerating aging, verifying storage stability, evaluating performance.

Programmable Test Duration and Continuous Operation

The system supports continuous operation over hours, days, or even weeks, making it ideal for long-term reliability and stability studies.

Reliable and Repeatable Test Data

With highly accurate sensors and precise control algorithms, the chamber keeps temperature fluctuation within ±0.5 ℃ and humidity deviation within ±2.5% RH.

Efficient Air Circulation System

The high-efficiency centrifugal fan ensures uniform airflow throughout the chamber, eliminating hot/cold spots and wet/dry dead zones. This uniformity guarantees consistent exposure of all samples to the set environmental conditions.

International Standard Compliance

Designed to meet internationally recognized standards, including IEC 60068-2-78, MIL-STD-810H, and ASTM D4332, the chamber provides reliable and compliant testing solutions for electronics, automotive, materials, and pharmaceutical industries.

parameter list

Constant Temperature Humidity Chamber

Model	TH-100	TH-225	TH-500	TH-1000
Internal Dimension (mM)	400500500	500600750	700800900	100010001000
Overall Dimension (mM)	90010501620	100011401870	120013402020	150015402140
Interior Volume	100L	225L	500L	1000L
Heat load	1000W
Temperature Range	A : -20℃ ～ +150 ℃ B : -40℃ ～ +150 ℃ C: -70℃ ～ +150 ℃
Temperature Fluctuation	± 0.5 ℃
Temperature Deviation	± 2.0 ℃
Humidity Range	20% ~ 98% RH
Humidity Deviation	± 2.5% RH
Cooling Rate	1 ℃ / min
Heating Rate	3 ℃ / min
Controller	Programmable color LCD touch screen controller,PC Link, LAN interface
Temperature Sensor	PTR Platinum Resistance PT100Ω/MV A-class
Cooling system	Mechanical compression refrigeration system
Refrigerating unit	French TECUMSEH compressor,environmentally friendly refrigerant.
Humidifier	External isolation, stainless steel surface evaporation humidifier
Air circulation	Centrifugal wind fan
Water supply system	Automatic water supply; Water purification system

Product details

Constant Temperature Humidity Chamber details

Air circulation system

The centrifugal fan in the air circulation ensures that the temperature and humidity are uniform and the temperature deviation is within ±2.0℃, which ensures stable test conditions throughout the test chamber.

constant temperature humidity chamber4

Cable hole

The cable hole allows powering the samples during testing, simulating real-world conditions and assessing the impact of ambient temperature and humidity factors on normal operation.

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Door

Door seals are extremely strong, not only because the silicone material has good elasticity, but also because of the concave-convex design that ensures accurate and stable test results.

Temperature-Humidity Graph

The temperature and humidity test chamber covers a wide range from 20℃ to 98℃, enabling temperature/humidity testing to meet your environmental temperature simulation needs.

FAQ – Constant Temperature Humidity Chamber

What is the main purpose of a constant temperature humidity chamber?

It is used to evaluate how products, materials, or components behave under fixed temperature and humidity conditions for extended periods. This helps identify aging effects, moisture-related failures, and long-term stability issues before products enter the market.

Are common industry test points supported?

Absolutely. Standard conditions such as 85℃/85%RH and 40℃/90%RH can be set easily through the programmable controller, making the chamber suitable for widely used reliability and qualification tests.

Can the Constant Temperature Humidity Chamber be customized for specific applications?

Yes. LIB industry provides customization options for size, temperature range, control functions, and accessories to match specific testing standards or application requirements.

Maximize Product Reliability with LIB Industry Constant Temperature Humidity Chamber

The LIB industry constant temperature humidity chamber provides stable environmental control for every stage of product development-from R&D validation to quality inspection and reliability testing.
Contact LIB industry today sales@libtestchamber.com to receive professional model selection guidance and a tailored quotation for your testing needs.

Custom Configurations | 3-Year Warranty | Lifetime Technical Support | Rapid Engineering Response

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