Programmable Climate Chamber for Environmental Reliability Testing
The ITM-LAB GDJS Series Temperature & Humidity Test Chamber provides controlled temperature and humidity conditions for environmental reliability testing of electronic components, automotive parts, industrial materials and other products.
Available in six standard capacities, the GDJS series supports high and low temperature testing, steady-state and cyclic damp heat testing, and programmable environmental test profiles.
−40°C / −70°C to +150°C | 20–98% RH | 100–1000L GET A QUOTE | REQUEST DATASHEET
Key Features | Advantages
- Wide Temperature Range
Choose between B Type (−40°C to +150°C) and C Type (−70°C to +150°C) configurations to meet different low-temperature testing requirements.
- Controlled Humidity Testing
Supports 20–98% RH within the specified temperature/humidity operating region for controlled damp heat and environmental testing.
- Programmable Environmental Testing
Supports programmed temperature and humidity test profiles for steady-state exposure and repeated environmental cycles.
- Six Standard Capacities
Available in 100 L, 150 L, 225 L, 408 L, 800 L and 1000 L configurations to accommodate different specimen sizes and laboratory requirements.
Performance Specifications
|
Parameter |
Specification |
|---|---|
|
Temperature Range |
B: −40°C to +150°C / C: −70°C to +150°C |
|
Humidity Range |
20–98% RH* |
|
Temperature Fluctuation |
±0.5°C |
|
Humidity Fluctuation |
±2.5% RH |
|
Temperature Deviation |
±1°C |
|
Humidity Deviation |
±3% RH |
|
Temperature Uniformity |
≤2.0°C |
|
Heating Rate |
≥3.0°C/min |
|
Cooling Rate |
≥1.0°C/min |
|
Maximum Load per Shelf |
20 kg |
|
Refrigeration System |
Fully enclosed piston compressor |
Humidity control is limited to the specified temperature/humidity operating region.
∗ Performance Conditions: Ambient temperature +5°C to +25°C, relative humidity ≤85%, under no-load conditions. Detailed performance verification for individual configurations should follow the agreed technical specifications.
GDJS Model Selection
Selection Note: Select chamber capacity based on specimen dimensions, quantity, fixture clearance and required airflow space—not volume alone.
|
Model |
Capacity |
Internal Size (W×D×H, mm) |
Weight |
Power Supply |
|---|---|---|---|---|
|
GDJS-100L-B/C |
100 L |
400×500×500 |
220 kg |
AC 220V, 3 kW |
|
GDJS-150L-B/C |
150 L |
500×500×600 |
250 kg |
AC 380V, 4.5 kW |
|
GDJS-225L-B/C |
225 L |
500×600×750 |
300 kg |
AC 380V, 5.5 kW |
|
GDJS-408L-B/C |
408 L |
600×800×850 |
400 kg |
AC 220V, 7.5 kW |
|
GDJS-800L-B/C |
800 L |
1000×800×1000 |
600 kg |
AC 380V, 10 kW |
|
GDJS-1000L-B/C |
1000 L |
1000×1000×1000 |
700 kg |
AC 380V, 11 kW |
B Type vs. C Type
|
Configuration |
Temperature Range |
|---|---|
|
B Type |
−40°C to +150°C |
|
C Type |
−70°C to +150°C |
Chamber Construction
The GDJS series combines a corrosion-resistant test space, thermal insulation and practical observation features for routine laboratory environmental testing.
|
Component |
Description |
|---|---|
|
Inner Chamber |
SUS304 stainless steel |
|
Outer Cabinet |
Cold-rolled steel with electrostatic coating |
|
Insulation |
Rigid polyurethane foam and fine glass fiber |
|
Observation Window |
Three-layer vacuum glass, 300 × 400 mm |
|
Window Heating |
Electric anti-frost and anti-condensation system |
|
Door Seal |
High-temperature-resistant silicone |
|
Refrigeration System |
Fully enclosed piston compressor |
|
Test Port |
50 mm or 100 mm |
|
Standard Shelves |
2 pcs |
|
Chamber Light |
9 W LED |
Environmental Testing Applications
The GDJS Series Temperature & Humidity Test Chamber is designed for controlled environmental testing during product development, qualification and quality verification.
- Constant Temperature & Humidity Testing
Maintain specified temperature and relative humidity conditions to evaluate the stability of electronic components, automotive parts and industrial materials.
- Damp Heat Testing
Perform steady-state or cyclic damp heat exposure to evaluate the effects of moisture and elevated temperature on electrical insulation, material properties and component reliability.
- High & Low Temperature Testing
Evaluate product performance under cold and dry heat exposure, with B and C configurations covering different low-temperature requirements.
- Temperature & Humidity Cycling
Run programmed environmental profiles to evaluate product response to repeated temperature and humidity changes, subject to the selected controller and operating conditions.
Typical Industries: Electronics · Automotive · Battery Components · Aerospace · Materials · R&D Laboratories

Applicable Test Standards
The GDJS series supports environmental testing applications associated with relevant IEC 60068 test methods.
|
Standard |
Test Method |
|---|---|
|
IEC 60068-2-1 |
Cold |
|
IEC 60068-2-2 |
Dry Heat |
|
IEC 60068-2-30 |
Damp Heat, Cyclic |
|
IEC 60068-2-78 |
Damp Heat, Steady State |
The applicable chamber configuration, temperature/humidity conditions and test procedures should be verified against the specific standard and customer requirements.
Get a Quote for Your GDJS Temperature & Humidity Test Chamber
Tell us your test conditions and specimen requirements. Our engineering team can help recommend a suitable chamber capacity, temperature configuration and accessories.
Recommended RFQ Fields
|
Field |
Requirement |
|---|---|
|
Full Name |
Required |
|
Company Name |
Required |
|
|
Required |
|
Country |
Required |
|
Required Temperature Range |
Required |
|
Required Humidity |
Required |
|
Specimen Dimensions & Weight |
Recommended |
|
Required Chamber Capacity |
Optional |
|
Test Standard / Application |
Optional |
|
Additional Requirements |
Optional |
For non-standard requirements, ITM-LAB can evaluate custom chamber capacities, test ports, communication interfaces and other application-specific configurations.
- What is the difference between GDJS-B and GDJS-C?
The GDJS-B configuration provides a temperature range of −40°C to +150°C, while GDJS-C extends the low-temperature limit to −70°C. Both configurations are available across the GDJS series.
- What humidity range can the GDJS chamber achieve?
The specified humidity range is 20–98% RH. Actual humidity control is limited to the chamber's temperature/humidity operating region.
- Can the GDJS chamber perform 85°C / 85% RH testing?
The GDJS series is intended for controlled damp heat testing. Suitability for 85°C / 85% RH should be confirmed against the chamber's operating envelope, specimen load and required test duration.
- How do I select the right chamber capacity?
Consider specimen dimensions, quantity, weight, fixture clearance and airflow requirements. The GDJS series offers six standard capacities from 100 L to 1000 L.
- Can the chamber perform programmable temperature and humidity cycling?
Yes. The GDJS series supports programmable environmental testing. Available program steps, cycle settings and data recording functions depend on the controller configuration.
- Are custom chamber configurations available?
Yes. ITM-LAB can evaluate non-standard chamber capacities, multi-layer configurations, additional test ports, shelves and other application-specific requirements.





