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LH-36 Environmental Testing Chamber
LH-36 Environmental Testing Chamber



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The LH-36 is a dynamic test chamber known for its ability to run unparalleled tight temperature and humidity control.

The test chamber is designed for minimal maintenance. Run long-term tests at a constant, steady-state temperature and humidity, or cycle testing with well-tuned reliability.

LH-36 model is a compact laboratory benchtop environmental test chamber. Known for its exceptional ability to tune into and control temperature and humidity performance, within -20°C to +94°C (-4°F to +201°F) and 10% RH to 95% RH

LH-36 test chambers feature heating systems equipped with open ceramic-core nichrome heaters for reliable and accurate temperature control within ±0.5°C.

The humidity system has a standard range between 20% and 95%. To extend your humidity range, see the optional features section.  

The cooling system in an LH-36 consists of a self-contained, compact, mechanical, single-stage refrigeration system. 

The LH-36 can be fitted onto an optional floor stand to increase mobility and lab testing flexibility. A stackable floor stand allows for two chambers in the same footprint. You save valuable lab space, gain more test workspace, or can run independent tests concurrently.

LH Series Test Chambers have incorporated AESONE CONNECT instrumentation creating a robust connected device for a standard and uniform interface making operation easier. Learn more in the Instrumentation Tab below.

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  • Specifications
  • Standard Features
  • Instrumentation
  • Safety Features
  • Optional Features
  • Downloads
  • Videos


Interior: 33W x 37D x 49H (in)
  838.2W x 939.8D x 1244.6H (mm)
Exterior: 50W x 81D x 48H (in)
  1270W x 2057.4D x 1219.2H (mm)
Volume: 34.623 cubic ft
  980.42 liters
Temperature: -20°C to 94°C (-4°F to 201°F)
Humidity: 10-95% RH, limited by +4°C Td (98% add option)
Humidity Fluctuation: +/- 2% RH
Electrical Supply:  208VAC or 230VAC, 1PH, 50HZ or 60HZ,
Full Load Amps: 30A
Power Requirement: NEMA L6-20
Mobility: Will fit through 62" door


  • Interior Cabinet: Stainless Steel, Type 304
  • Exterior Cabinet: Cold Rolled Steel, Heavy-Gauge, Powder Coat Finish, Color: Bone
  • Full Opening Door, Right-Hand Hinge, and 2 Manual Door Latches
  • 12" x 12" Heated Multipane Viewing Window
  • Interior Light with Exterior Switch
  • Fully Adjustable Shelf Rails, Includes 1 Wire-Grid Shelf
  • Port and Plug 3 in (76.2 mm) Diameter
  • Port Configuration: Right Wall Access, Centered in Workspace top-to-bottom and front-to-back
  • Forced-Air Circulation
  • Self-Contained Refrigeration System
  • Steam Generator Humidity System
  • Gas Purge Control
  • Floor Supports 600 lbs Locking
  • Swivel Casters, Set of 4




LH Series Test Chambers have upgraded to include AESONE CONNECT creating a robust connected device for a standard and uniform interface making test chamber operation easier.

AESONE XCHANGE increases your functionalityaesone-connect-1

  • connects the test chamber controller to your network for increased accessibility
  • on-board multi-year data logging

AESONE SOFTWARE gives you the power to

  • remote chamber operation and monitoring, 
  • web-based test profile creation, 
  • viewing current data and historical data visually
  • secure multi-level user access 


WATLOW F4T PROGRAMMABLE CONTROLLER. Features a 4.3” capacitive touchscreen minimizing the chance for error. Ethernet communication supported by AESONE HARDWARE. View more controller options


for temperature, 100 OHM platinum RTD is highly-accurate sensor made from platinum components for increased sensitivity
for humidity, solid-state sensor for 10-95% relative humidity

OPTIONAL DATA LOGGERS. View additional data loggers

Safety Features

  • adjustable high-/low-temperature safety
  • internal high-temperature limit safety
  • refrigeration system over-pressure safety circuit
  • low-water steam generator over-temperature circuit
  • TUV Rheinland certified meeting UL 61010-1, US, C, E

Optional Features

Liquid Cooling Adjustable Saftey with Alarm Controller Upgrade AESONE HARDWARE & SOFTWARE Honeywell Chart Recorder Honeywell Digital Chart Recorder Change Port Size/Access Point Additional Shelving Water Demineralizers System Water Recycling System Extended Humidity with Wet Psychrometer: Wet/Dry Bulb Dry Nitrogen Purge Air Dryer, Dehumidifier Upgrade Door Window Size Alternative Power Requirements Other options available on request