Chongqing Constant Temperature and Humidity Test Chamber Manufacturer | Chongqing Wanwei Instrument, High Low Temperature Humid Heat Test Chamber with Non-Standard Customization Available

2026-09-22

Source: Wanvei Editor

Constant temperature and humidity test chamber, also known as high low temperature humid heat test chamber, is essential environmental simulation equipment for product reliability laboratories. It can simulate climatic environments such as high temperature, low temperature, humid heat and alternating temperature & humidity, and is widely applied in reliability tests including product aging resistance, humid heat resistance, high/low temperature storage and alternating environmental detection. If you are looking for a reliable manufacturer of constant temperature and humidity test chambers in Chongqing, please learn about Chongqing Wanwei Instrument.

Chongqing Wanwei Instrument focuses on the R&D and production of environmental test equipment. The programmable constant temperature and humidity test chambers of WV-HH series are available in stock in multiple specifications. The models include WV-HH80L, WV-HH150L, WV-HH250L, WV-HH500L, WV-HH800L and WV-HH1000L. Besides standard models, we also provide non-standard customization services for constant temperature and humidity test chambers according to customers’ test requirements.

Core Technical Parameters

Temperature Range: -70℃～+150℃ (standard)
Control: Programmable controller, supporting linear / non-linear temperature and humidity programming
Temperature Change Rate: Heating rate 3℃/min, cooling rate 1℃/min (nominal rate under no-load condition)
Humidity Range: 10%～98% RH
Inner chamber: SUS304 stainless steel, corrosion-resistant and easy to clean; outer chamber with electrostatic spraying, sturdy and attractive
Color touch screen control system, multi-segment program editing and cycle operation, test curve export via USB, supporting computer communication
Multiple safety protections: over-temperature protection, water shortage alarm, compressor overload protection and independent temperature limit protection to safeguard test samples and equipment.

Three Test Modes to Meet Diverse Reliability Test Requirements

Constant Temperature and Humidity Fixed Value Test Set fixed temperature and humidity for long-duration testing. Commonly used for humid heat aging tests, such as the 85℃/85%RH long-term humid heat test, to detect the resistance of electronic components and materials to water vapor corrosion and insulation attenuation performance.

Alternating Temperature & Humidity Cycle Test Alternate high and low temperatures with synchronous humidity linkage to simulate day-night and seasonal alternating environments. It mainly investigates product failures caused by thermal expansion & contraction and condensation, such as PCB cracking, seal leakage and coating peeling, complying with GB/T2423.4 alternating humid heat standard.

High and Low Temperature Single Temperature Test (Humidity Function Turned Off) Turn off humidification and only control temperature. It is applied to high-temperature baking aging and low-temperature storage tests of products, to evaluate low-temperature brittleness of materials and low-temperature startup performance of products, complying with GB/T2423.1 and GB/T2423.2 basic high and low temperature test standards.

Product Advantages of Chongqing Wanwei Instrument

✅ Complete specifications with available stock: standard chambers of 80L~1000L in stock to shorten delivery cycle

✅ Non-standard customization: customized special temperature range, explosion-proof models, test lead holes, walk-in constant temperature and humidity chambers, rapid temperature change test equipment

✅ Local manufacturer in Chongqing: on-site survey, installation & commissioning, operator training, fast after-sales response in Southwest China

✅ Factory calibration: each equipment completes temperature field calibration before delivery, meeting acceptance requirements of enterprise laboratories, research institutes and third-party testing institutions.

Applicable Industries

Automotive electronics, consumer electronics, semiconductors, new energy batteries, plastic materials, coatings, hardware products, medical devices, optoelectronic components, military parts, university research laboratories.

If you need selection guidance for constant temperature and humidity test chambers, detailed parameters, quotations, drawings of WV-HH series, or customized high low temperature humid heat test chambers with special specifications, please contact Chongqing Wanwei Instrument. We offer free laboratory selection plans and reliability test suggestions.