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Environmental Calibration Chamber

The DHT® Environmental Calibration Chamber is a high-precision system engineered for the calibration and verification of temperature and humidity sensors under tightly controlled conditions. Designed to meet the stringent requirements of environmental chamber calibration, it is widely used in fields such as meteorology, environmental monitoring, metrology laboratories, and industrial quality control.

This advanced humidity calibration chamber provides an ultra-stable testing environment with fine-tuned control over both temperature and humidity, ensuring the accuracy, repeatability, and traceability of sensor calibration processes. Leveraging intelligent control systems and uniform air circulation, the chamber supports a wide range of calibration scenarios—from single-point verifications to complex multi-point profiling.

Whether you’re calibrating digital sensors, analog probes, or integrated monitoring systems, the DHT® chamber delivers the consistency and reliability essential for compliance with international standards and traceable certification procedures.

To learn more about selecting the right equipment for your environmental testing needs, check out our detailed guide: How to Choose the Best High-Low Temperature Test Chamber for Industrial Applications? A Professional Selection Guide for Engineers.

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Benefits

Ultra-Precise Environmental Control:Utilizing advanced PID control algorithms, the chamber ensures exceptional environmental stability—achieving ±0.2°C temperature uniformity and ±1.5% RH humidity accuracy. This guarantees high calibration fidelity across a wide range of sensor types and use cases.

Broad Calibration Range for Versatile Applications:With a temperature range of -70°C to +180°C and humidity from 10% to 98% RH, the chamber supports calibration of digital, analog, and hybrid temperature/humidity sensors under diverse environmental conditions—ideal for both R&D and quality control applications.

Accelerated Calibration Through Rapid Thermal Cycling:Designed to increase throughput, the system offers fast heating and cooling rates (up to 3°C/min), reducing total calibration time by up to 30% without compromising accuracy or stability.

Extreme Environment Simulation for Sensor Stress Testing:Recreate real-world extreme climates—including desert heat, tropical humidity, and arctic cold—to validate sensor durability and performance under challenging conditions.

Intelligent Safety Architecture:Integrated multi-layer protection mechanisms include over-temperature and over-humidity alarms, real-time system diagnostics, and automatic emergency shutdown to ensure operator and equipment safety during continuous operation.

Features Video

Specifications

Temperature Range (°C) -40℃~180℃;
-70℃~180℃ (customizable)
Heating Rate (°C/min) 2.0~4.0
Cooling Rate (°C/min) 0.7~3.5
Temperature Change Rate After Stabilization (°C/min) ﹤0.2
Temperature Fluctuation (°C) ±0.2;±0.5 (0~50℃)
Temperature Uniformity (°C) 2;≦0.3 (0~50℃)
Humidity Usable Temperature Range (℃) 15~95
Humidity Range (%RH) 10 ~ 98
Humidity Fluctuation (%RH) ±0.8 (20℃, steady state)
Humidity Uniformity (%RH) 1.0~3.0(20℃, steady state)
Humidity Change Rate After Stabilization (%RH/min) ﹤0.8
Power Supply 3/N/PE AC 380/400V ±10%,50Hz
Cooling Method Air Cooling