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High performance and reliability in a compact package, for a wide range of temperature/humidity testing needs.

ESPEC’s evolving lineup of constant-temperature (and humidity) chambers supports an expanded range of testing needs in laboratories and research facilities. Easy to use & reliably safe, with lower energy consumption and easier recycling, these chambers offer ESPEC’s advanced technologies. The six-model lineup includes 105- and 206-liter models available in four temperature (humidity) ranges and two sizes. All models support a single phase power supply, remote monitoring and control via PC Ethernet connection and web browser and a wide range of applications.


Superior Stability

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.

  • Lowest temperature: -20 or -70°C (-4 or -94°F)
  • Highest temperature: 180°C (354°F)
  • Humidity range: 10 to 95% RH
  • Chamber size: 1.5 or 4 cubic feet
  • Touch-screen Watlow F4T programmer with Ethernet access


Program set up: 1 Pattern – 12 Steps

The controller allows you to register 3 constant operation settings or 1 program operation setting with maximum of 12 steps.


Remote monitoring and control  (Ethernet connection)

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 being at the site. (This operation can only be performed when the power breaker is “ON”.)


Color LCD touchscreen control panel (N-instrumentation)

Colour LCD touch panel (N-instrumentation) helps to set up various features, including operation settings and cabinet setup: Constant-, Program-, Remote-Operation. Robust enough to be operated without taking off your gloves

USB port for data memory & output

Trend graphs can be displayed on the web application, downloaded, and registered on a USB memory.

Remote monitoring & control (Ethernet connection)

A unique web application allows the user to monitor the chamber operation from a PC. Without any software, the chamber can be accessed and controlled via web browser on the PC, Smartphone, and Tablet. Wireless connection and multiple units’ connection are also possible.

Patented cross-output control system reduces required power

The LHU-124 model’s cross-output control system (patent No. 2928162) lowers the maximum current during operation, reducing the amount of power required.

Constant Climate Cabinet

Constant Climate Cabinets

Support when you need it

from expert people

Our after sales service and ability to support existing installations, from planned maintenance schedules and emergency repairs to full on-site refurbishment mean our customers equipment retains optimal performance and up time.