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Double layer constant humidity and humidity test chamber
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WBE-SDJ Double layer constant humidity and humidity test chamber

The programmable constant temperature and humidity test chamber is also called a programmable constant temperature wet heat alternating test chamber. It is used to test the performance of materials in various environments and to test various materials for heat resistance, cold resistance, dry resistance and moisture resistance. Suitable for quality testing research in electronics, electrical appliances, mobile phones, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace, scientific research, colleges and universities.



● The product has obtained national patents.

● All imported stainless steel shells or rust-proof steel plates (sprayed plastic) are beautiful in appearance.

● Imported refrigeration units, key components are imported international brands, the entire system is equipped with multiple protection devices to improve operational reliability.

● Ingenious air duct structure, small temperature and humidity deviation, high uniformity, and anti-condensation function.

● The door is equipped with a light observation window to facilitate the observation of the test sample.

● The system is easy to operate and easy to install and maintain.

Technical specifications


Constant temperature and humidity test chamber (double layer) WBE-SDJ-volume-ABCD (volume can also be customized according to requirements)

Internal product (L)m3




Studio size (WxDxH) (m) wide and deep








Temperature regulation and humidity control

Balanced temperature adjustment and humidity control (BTHC) PID intelligent adjustment

Product performance

Air-cooled, air-cooled room temperature at room temperature at 25 °C.

temperature range

    A:-40℃~+150℃ B:-20℃~+150℃ C:-60℃~+150℃  D:-70℃~+150℃

Humidity range

20%~98%R.H (10%~98%R.H, 5%~98%R.H; customized for special conditions)

Temperature distribution uniformity


Temperature/humidity control fluctuation


Temperature/humidity deviation

≤±2℃ / 75%R.H <±5%R.H , 75%R.H ≥±3%R.H,

Heating rate

Approx. 2 ° C / min; no load (temperature rate 2 ~ 25 ° C / min linear / nonlinear for special conditions need to be customized)

Cooling rate

About 0.7 to 1.7 ° C / min; no load (temperature rate 2 ~ 25 ° C / min linear / nonlinear for special conditions need to be customized)

Inner/housing material

SUS304 stainless steel / library plate or anti-rust treatment cold-rolled steel plate spray or SUS304 brushed stainless steel

Cooling method

Fully enclosed two-stage compressor (air-cooled) / German BITZER BITZER compressor or German GEA blog compressor (water-cooled)

Control system / resolution

Tai Tong TATO / Korea TECH ternary / 0.01 ° C / 0.1% R.H

Ambient temperature / humidity

Air-cooled +5°C~+26°C, water-cooled 5°C~+35°C / ≤85%RH

power supply

 220VAC±10%   50/60Hz/380VAC±10% 50/60Hz

Industry application


Company picture

Strength and advantage


Shipping and after sales

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