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    High-Low Temperature Alternating Humidity Test Machine

    Overview Products Knowledge Standards Terms
    The high and low temperature alternating damp heat test chamber simulates various temperature and humidity environments within a sealed space through its refrigeration and heating systems, as well as a humidification device. It is used to detect the performance changes of materials under varying temperature and humidity conditions and is commonly employed for environmental adaptability verification of electronic components and coating products.
    Selection
    When selecting, consider a temperature range covering -70℃ to 150℃ and a humidity range of 30% to 98% RH. Determine the chamber volume based on the sample size, with a commonly used temperature change rate of 1-3℃ per minute. Pay attention to the compressor type and controller accuracy to meet the requirements of relevant testing standards.
    Test Type
    Min-TEMP
    Max-TEMP
    working volume
    Temp Fluctuation
    Temp Uniformity
    Temp Deviation
    Temp Change Rate
    Cooling Method

    Terms

    High and low temperature humidity vibration combined environmental test chamber

    Standards

    Active GB/T 15905-1995
    Rubber，vulcanized--Test method of damp heat aging
    Active GB/T 38924.7-2020
    Environmental test methods for civil small and light unmanned aircraft system—Part 7: Humidity test
    Active GB/T 12085.23-2022
    Optics and photonics—Environmental test methods—Part 23：Low pressure combined with cold,ambient temperature and dry or damp heat
    Active GB/T 12085.2-2022
    Optics and photonics— Environmental test methods—Part 2: Cold, heat and humidity
    Active GB/T 4893.2-2020
    Test of Physical and Chemical Properties for Surface Coatings of Furniture — Part 2: Determination of Resistance to Damp Heat
    Active GB/T 32065.7-2015
    Environmental test methods for oceanographic instruments—Part 7：Damp heat, cyclic
    Active GB/T 10586-2025
    Specifications for damp heat testing chambers
    Active GB/T 2423.50-2025
    Environmental testing—Part 2：Test methods—Test Cy：Damp heat, steady state, accelerated test primarily intended for components
    Active GB/T 22894-2008
    Paper and board - Accelerated ageing - Moist heat treatment at 80℃ and 65% relative humidity
    Active GB/T 43113-2023
    Standard practices for evaluating the hydrothermal resistance of carbon fiber reinforced polymer composites
    Active GB/T 4937.4-2012
    Semiconductor devices - Mechanical and climatic test methods - Part 4: Damp heat, steady state, highly accelerated stress test (HAST)
    Active GB/T 2423.40-2013
    Environmental testing―Part 2: Test methods―Test Cx: Damp heat, steady state (unsaturated pressurized vapour)
    Active GB/T 5170.17-2005
    Inspection methods for basic parameters of Environmental testing equipments for electric and electronic products Combined sequential cold low air pressure And damp heat testing equipments
    Active GB/T 2424.2-2005
    Environmental Testing for electric and electronic products -- Guidance for damp heat tests
    Active GB/T 10590-2006
    Specifications for high and low temperature/low air pressure testing chambers

    Instruments

    Lugong ST-1000LA Humidity Chamber high and low temperature heating and humidity alternating Environmental performance equipment
    Lugong ST-1000LA Humidity Chamber high and low temperature heating and humidity alternating Environmental performance equipment

    Using Japan's Panasonic Compressor and the United States DuPont environmental protection refrigerant, temperature control accuracy of +/- 0.5 ℃, Temperature resolution 0.01 ℃, with program control and Data storage functions, support high temperature, low temperature and heat and humidity alternating test.

    $ 5479.00
    Lugong ST-25LA programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating environment simulation
    Lugong ST-25LA programmable constant temperature and humidity testing machine, high and low temperature heat and humidity alternating environment simulation

    Using Nidec compressor and DuPont environmental protection refrigerant, Humidity control accuracy of 0.1 ℃, equipped with double-decked vacuum heating defrosting observation window and stainless steel sample holder, support multi-stage programming and Data storage.

    $ 3301.00
    APKJ AP-HX-150D programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-150D programmable Humidity Chamber high and low temperature alternating environment test

    Temperature range -60~ 150 ℃, humidity control 20~ 98% RH, multi-wing air supply circulation to ensure uniform temperature and humidity, support LAN interface remote monitoring and data export.

    $ 6383.00
    APKJ AP-HX-150B programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-150B programmable Humidity Chamber high and low temperature alternating environment test

    The 7-inch touch controller supports 120 program settings, is equipped with a multi-wing air supply system to ensure a uniform temperature and humidity of +/- 2 ° C, and has a LAN interface to realize computer remote control and data recording functions.

    $ 4672.00
    APKJ AP-HX-150C programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-150C programmable Humidity Chamber high and low temperature alternating environment test

    Equipped with 7-inch touch controller to support 120 program settings, multi-wing air supply circulation to ensure uniform distribution of temperature and humidity, studio volume 150L and Temperature Fluctuation +/- 0.5 ℃, with USB data export and LAN remote control function.

    $ 4785.00
    APKJ AP-HX-800A programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-800A programmable Humidity Chamber high and low temperature alternating environment test

    Equipped with a 7-inch touch controller to support 120 program connections, multi-wing air supply circulation to ensure uniform distribution of temperature and humidity, temperature control accuracy of +/- 0.5 ° C and complete safety protection mechanism, suitable for various material Reliability testing.

    $ 7287.00
    APKJ AP-HX-225B programmable Humidity Chamber high and low temperature heating and humidity test Chamber
    APKJ AP-HX-225B programmable Humidity Chamber high and low temperature heating and humidity test Chamber

    Adopt 7-inch touch controller to support 120 program settings, equipped with multi-wing air supply system to ensure uniform distribution of temperature and humidity, Temperature Fluctuation +/- 0.5 ℃, humidity deviation +/- 2% R.H to ensure test accuracy.

    $ 5576.00
    APKJ AP-HX-30B programmable Humidity Chamber high and low temperature alternating environment test
    APKJ AP-HX-30B programmable Humidity Chamber high and low temperature alternating environment test

    With 120 sets of program control capabilities, it supports a wide temperature range test from -20 ° C to + 150 ° C. It uses a multi-wing air supply system to ensure uniform distribution of temperature and humidity, and is equipped with complete safety protection devices to display fault status in real time.

    $ 4108.00
    Lugong ST-50LA Humidity Chamber high and low temperature heating and humidity alternating test equipment
    Lugong ST-50LA Humidity Chamber high and low temperature heating and humidity alternating test equipment

    Using Japanese Panasonic Compressor and binary low temperature circuit system, temperature control accuracy of +/- 0.5 ℃, equipped with stainless steel humidifier and nickel-chromium alloy heater, support programmed test and data recording function, to meet the demanding environment simulation needs.

    $ 2639.00
    APKJ AP-HX-50A programmable Humidity Chamber high and low temperature heating and humidity test
    APKJ AP-HX-50A programmable Humidity Chamber high and low temperature heating and humidity test

    Multi-wing air supply cycle is used to ensure uniform temperature and humidity, support 120 sets of program control and data export functions, Temperature Fluctuation +/- 0.5 ℃, to meet a variety of industrial standard testing requirements.

    $ 3995.00
    Simulation of high and low temperature heating and humidity alternating environment in Lugong ST-80LD Humidity Chamber
    Simulation of high and low temperature heating and humidity alternating environment in Lugong ST-80LD Humidity Chamber

    Using Japan Panasonic Compressor and binary low temperature circuit system, Temperature range -70 ℃~ + 150 ℃, Temperature Uniformity ≤ 2 ℃, equipped with double-decked vacuum Glass observation window and automatic water replenishment device.

    $ 4140.00
    ONSET HOBO MX2301A Temperature and Humidity Recorder Bluetooth Low Energy Weatherproof High Accuracy measurement
    ONSET HOBO MX2301A Temperature and Humidity Recorder Bluetooth Low Energy Weatherproof High Accuracy measurement

    Built-in High Accuracy Temperature Humidity Sensor, Temperature Error +/- 0.2 ℃, Humidity Error +/- 2.5%. Adopt Bluetooth low energy wireless transmission, support remote setting and data download, with weatherproof housing and NEMA6/IP67 Protection Rating, suitable for long-term outdoor monitoring.

    $ 414.00
    YIHENG BPS-50CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber Fluorine-free design temperature limit alarm
    YIHENG BPS-50CL Constant Temperature and Humidity Chamber Programmable Humidity Chamber Fluorine-free design temperature limit alarm

    Temperature range -10~ 100 ℃, humidity control 35~ 95% RH, with independent temperature limit alarm system and multi-stage programmable PID controller to ensure safe operation and precise control of temperature and Humidity.

    $ 3078.00
    Lugong ST-100LC Humidity Chamber high and low temperature heating and humidity alternating test equipment
    Lugong ST-100LC Humidity Chamber high and low temperature heating and humidity alternating test equipment

    Double-decked Vacuum Glass and SUS304 stainless steel inner box, Temperature Uniformity ≤ 2 ℃, equipped with Panasonic Compressor and PID temperature control system, support program test and data recording function.

    $ 3801.00
    KESIONOTS KS-HW408L Humidity Chamber 150 ℃ high and low temperature heating and humidity test
    KESIONOTS KS-HW408L Humidity Chamber 150 ℃ high and low temperature heating and humidity test

    Adopt cascade refrigeration system to achieve -70 ℃ low temperature, with 1000 segment program control capacity, support RS-232 communication interface and Chinese and English display switching, Temperature Uniformity up to +/- 1.0 ℃ and humidity fluctuation +/- 2.0% RH.

    $ 7287.00

    Articles

    Rapid temperature change high and low temperature test chamber for thermal fatigue evaluation of PCB board solder joints.
    This paper discusses the application of rapid temperature change high and low temperature test chambers in evaluating the thermal fatigue of PCB board solder joints. Solder joint fatigue is primarily caused by differences in material thermal expansion, and the test chamber simulates thermal stress through temperature cycling to accelerate the fatigue process.
    Application of Three-Chamber High and Low Temperature Test Chambers in Rapid Temperature Cycling for Electronic Products
    The three-chamber high-low temperature test chamber is used for reliability testing of electronic products, enabling rapid temperature transitions through independent high temperature, low temperature, and test zones. Compared to traditional single-chamber equipment, it reduces temperature change time and enhances testing efficiency.
    High and low temperature alternating test chamber for measuring low-temperature embrittlement temperature of plastics
    This article introduces how to use a high-low temperature alternating test chamber to determine the low-temperature brittleness temperature of plastics.
    Constant Temperature and Humidity Aging Chamber for Testing Hygrothermal Aging Performance of Composite Materials
    This article introduces how to use a constant temperature and humidity aging chamber to test the hygrothermal aging performance of composite materials. Hygrothermal aging refers to the gradual decline in material performance under the combined effects of temperature and humidity.
    Thermal Shock Test Chamber Measures Film's Temperature Change Resistance
    The thermal shock test chamber creates thermal stress inside the film by rapidly switching between high and low temperature environments, testing its resistance to temperature changes. During the test, key parameters such as temperature range and dwell time need to be set, and the film is observed for issues such as cracking or performance degradation.
    Constant Temperature and Humidity Chamber for Testing Packaging Moisture and Heat Resistance
    This article introduces the method of using a constant temperature and humidity test chamber to test the resistance of packaging to heat and humidity. The test chamber simulates hot and humid environments by controlling temperature and humidity, thereby evaluating the performance changes of packaging materials.
    Humidity and heat test chamber tests the moisture absorption rate of resin under high temperature and high humidity conditions.
    This article introduces the method of using a hygrothermal test chamber to measure the moisture absorption rate of resin under high temperature and high humidity conditions.
    Eddy current thickness gauge measures metal coatings on non-conductive substrates.
    The eddy current thickness gauge utilizes the principle of electromagnetic induction, generating an alternating magnetic field through the probe coil to induce eddy currents in the metal coating, thereby measuring thickness based on changes in coil impedance.
    Humidity and Heat Test Chamber for Evaluating Coating Performance under High Temperature and High Humidity Conditions
    This article introduces how a humidity and heat test chamber is used to evaluate the performance of coatings in high-temperature and high-humidity environments. Coatings are widely used in industries such as automotive and electronics, but they are prone to issues like reduced adhesion and blistering under actual high-temperature and high-humidity conditions.
    Eddy current thickness gauge detects coatings on non-ferrous metals.
    The eddy current thickness gauge operates on the principle of electromagnetic induction, generating an alternating magnetic field through the probe coil, which induces eddy currents on the surface of non-ferrous metal substrates.
    Thermal Shock Test Chamber Evaluates Coating Thermal Stability
    The thermal shock test chamber simulates sudden temperature changes by rapidly switching between high and low temperature environments, used to evaluate the thermal stability of coatings. In practical applications, coatings may develop internal stresses due to drastic temperature fluctuations, leading to issues such as cracking and peeling.
    The necessity of explosion-proof high and low temperature test chambers in lithium battery testing
    Lithium batteries pose a risk of thermal runaway or even explosion when tested under extreme temperatures. Explosion-proof high-low temperature test chambers, designed with pressure relief structures, explosion-proof electrical components, and intelligent monitoring systems, can safely release energy and ensure the safety of the testing process.
    Tensile Testing Machine Evaluates High and Low Temperature Tensile Properties of Hot Melt Adhesive
    This article introduces how to use a tensile testing machine to test the tensile properties of hot-melt adhesives at different temperatures. The performance of hot-melt adhesives varies with temperature: they may soften at high temperatures and become brittle at low temperatures.
    The essential difference between thermal shock test chambers and high-low temperature alternating test chambers.
    Both thermal shock test chambers and temperature cycling test chambers are used to test the temperature resistance of products, but their core differences lie in the method and purpose of temperature change.
    Application of Damp Heat Testing in the Environmental Adaptability Verification of Automotive Components
    Humidity and heat testing is an accelerated test method that simulates high-temperature and high-humidity environments, used to evaluate the performance changes of automotive components under humid conditions. It primarily examines the insulation and corrosion resistance capabilities of electrical and electronic components, the aging resistance of interior materials, and the corrosion prevention effectiveness of exterior structural parts.