Stability Test Chambers provide a constant climate for storage & life testing of pharmaceuticals, packaging, and components with low heat load. With their highly efficient refrigeration system and outstanding thermal insulation, ESPEC’s constant climate cabinets are ideal for use in laboratories and research facilities. They offer a wide temperature/ humidity range, and create a stable cabinet environment with a temperature gradient/ variation in space of temperature 5°C.

Stability Test Chamber :: Feature Summary

Unlike the smartphones, the controller comes with resistive touchscreen, which allows you to operate without taking off your gloves. Various items, including operation settings and cabinet setup, can be selected with the tabs at the bottom of the screen.

Remote Control and Monitoring

You can connect the cabinet to your local area network. By doing so, you can control and monitor the cabinet from any computer on the network, using a web browser. You can program test patterns, start and stop the operation without you actually being at the site.

Program Editing

The program patterns registered in the test cabinet can be edited via web browser and sampling data can be displayed as graphs. Using the PC application software “Pattern Manager Lite” (see page 3), program patterns on a PC can be edited, displayed as graphs or output as CSV data even if offline.

Stability Test Chambers :: Specifications

Three product families are provided by Espec Japan, the “Constant Climate” series of small format, benchtop stability test chambers, the mid-sized CSH series, and the walk-in CWH stability chambers for large-scale testing.


Constant Climate (Benchtop) Series Models


Model Temp. & humidity range Inside / Outside dimensions (mm)
LH-114 (Ambient temp. +10) to +85ºC [+185ºF] / 45 to 95%rh W500xH600xD390 / W680xH1090xD826
LHL-114 +5 to +85ºC [+41 to +185ºF] / 40 to 95%rh
LHU-114 -20 to +85ºC [-4 to +185ºF] / 40 to 95%rh
LHU-124 W500xH750xD590 / W680xH1240xD1026
LU-114 -20 to +85ºC [-4 to +185ºF] W500×H600×D390 / W680×H1090×D826
LU-124 W500×H750×D590 / W680×H1240×D1026



CSH (Cabinet Style) Series Models


Model Temp. & humidity range Inside / Outside dimensions (mm)
CSH-112 +20 to +75ºC/ 50 to 90%rh W600×H700×D560 / W740×H1550×D774
CSH-122 W650×H950×D660 / W890×H1800×D874
CSH-132 W1100×H950×D760 / W1240×H1800×D974


CWH (Walk in) Series Models


Model Temp. & humidity range Inside / Outside dimensions (mm)
CWH-10~40A +20 to +45ºC/ 50 to 85%rh Varies, walk-in style chambers are available in a wide variety of sizes.