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TestEquity LLC, Environmental Chamber Division Environmental Chambers for Temperature and Humidity Testing
   TestEquity Model 115A Temperature Chamber (Environmental Chamber), Benchtop or Floor Standing
TestEquity 115 Temperature Chamber
  • -73°C to +175°C Temperature Range
  • 1.5 Cu Ft Workspace, 16W x 12H x 14D
  • Choice of Original F4 Controller or
    F4T Touch Screen Controller
  • High/Low Limit Control & Alarm
  • Viewing Window & Interior Light
  • Reversible Door
  • Access Ports on Left & Right Side
  • Non-CFC Cascade Refrigeration
  • Compact Floor Standing & Benchtop Versions
  • 120V Input - Plugs Into Any Outlet
  • 3 Year Parts, 1 Year Labor Warranty
  • Fast Delivery From Stock
  • Available For Sale, Rental or Lease
  • Export version available with CE Mark
Benchtop Version

Our improved Model 115A Temperature Chamber offers these benefits over our popular Model 115:

  • Bidirectional Control Architecture - reduced energy consumption and better temperature control.
  • Improved Airflow - The conditioning plenum is improved to accommodate a larger fan blade and a more ideal airflow pattern. This results in substantially improved temperature uniformity under real-world loading conditions.
  • Choice of Manual or Programmed On/Off Mode - Allows the chamber to be turned off completely at the end of a stored profile or via computer interface
  • Condensate Drain - The conditioning plenum has a drain to permit removal of condensate from the evaporator that can occur when cycling between low to high temperatures.
  • Field installable GN2 and Dry Air Purge Options - If you change your mind after purchase, you can now install these options easily in the field.

TestEquity Model 115A provides full-range temperature testing in a compact floor standing or benchtop package. Its rugged design includes a variety of standard features, making it an exceptional value. 

Compare the TestEquity Model 115A Temperature Chamber to the competition:

Feature TestEquity 115A Competition
Control Architecture Bidirectional Bucking
Window and Light Included Optional
High/Low Limit Controller Included Optional
Access Ports Two One 2", not possible on the right side
Shelf Included Optional
Reversible Chamber Door Yes Not Possible
Condensate Drain Yes No
Warranty 1 Year Labor
3 Years Parts
90 Days Labor
1 Year Parts
Model 115A Improvements Over Competitive Legacy Designs here >>

Your choice of the original F4 Controller or the NEW F4T Touch Screen Controller

F4T Controller    F4 Controller
F4T Touch Screen Controller
Modern touch screen interface
and connectivity
Original F4 Controller
Developed in 1998

NEW F4T Touch Screen Temperature Controller
The F4T is our next-generation controller. Featuring a touch-screen interface, it's exceptionally easy and intuitive to use. Includes RS-232 and Ethernet interfaces. GPIB is available as an option.

F4T Feature F4T Benefit
4.3 inch TFT Projected Capacitive (PCAP) color graphic touch screen Modern interface for quick entry and readout of parameters and functions
Direct alphanumeric parameter entry Quick and unambiguous entry of parameters for ease-of-use
Multiple levels of password security Prevent tampering of critical parameters and processes by unauthorized persons
Profile archiving and transfer via USB Flash Drive Quickly and easily transfer profiles to multiple chambers
Data Logging to USB Flash Drive Eliminate circular chart recorders which have limited usefulness, simplify your documentation process
F4 Compatibility Mode Use your existing software that was written for the original F4
Free Composer Software Easy creation and archiving of profiles and chamber configurations
NEMA 4 / IP65 Rated Front panel protects the controller against damage from dust and water intrusion

More about the F4T Touch Screen Controller >>

Original F4 Temperature Controller
Up to 256 steps can be programmed into as many as 40 nameable profiles. The context sensitive information key and guided steps make profile programming fast and easy. A four-line backlit LCD displays programming, setup, operating and help information. A large LED readout indicates the actual chamber temperature with 0.1° resolution. Internal logic provides refrigeration compressor control for responsive and reliable performance. Includes two alarms and seven event outputs to control remote devices. RS-232C communications is also included. GPIB, Ethernet and analog retransmit are available as options.
More about the Original F4 Temperature Controller >>

High/Low Temperature Limit Controller and Alarm
Provides independent protection against excess temperatures. Both high and low limits can be set. The limit controller will shut down the chamber and trigger the audible alarm in the event of an out of limit condition.

Viewing Window & Interior Light
6-Pane window minimizes thermal losses. Oven-rated interior light protrudes minimally in workspace.

Two 3" Access Ports
All Model 115A chambers include 3" ports (2.83" inside diameter). Lets you attach wires and sensors to your test sample through both the left and right side of the chamber.

A stainless steel wire shelf ensures proper airflow around your test sample for uniform temperature distribution.

The 115A-F floor-standing version includes casters to permit easy movement, making the chamber truly portable.

120 Volt Input
The chamber draws 15 Amps maximum at 120 Volts. You can plug it into any standard 20 Amp wall receptacle. An export version is available with 230 Volts, 50 Hz input.

World's Best Environmental Chamber WarrantyWorld's Best Environmental Chamber Warranty
Only TestEquity offers a 3-year warranty on parts and 1-year warranty on labor. Our nationwide service network is qualified to do the job right. And we always have replacement parts in stock for immediate shipment. Labor warranty applies to the United States and Canada only. See the complete warranty statement here.


Reliability & Safety That's Designed In
Non-CFC refrigerants are used in a cascade (two compressors) configuration. Pressure controls keep the operating pressures within safe limits regardless of load conditions. Liquid injection ensures cool compressor operation during high-temperature cool down for long life. Sequential starting of each compressor reduces the current demand on start-up. Care has been taken to use a minimum number of fittings, joints and welds to reduce the possibility of refrigerant leaks.

All electrical control components are UL approved. The nichrome air-heater has a low watt-density and even heat distribution for reliable performance and fast response. A fusible link provides fail-safe protection against thermal runaways, in addition to the microprocessor-based high/low limit controller.

We use a combination of structural foam and fiberglass blanket insulation for a higher combined R-factor than just fiberglass alone. The result is a cabinet that does not sweat due to condensation during low temperature operation. The side and rear panels are removable to permit complete access to the refrigeration system for ease of service and preventive maintenance.

Condensed Specifications
Temperature Range -73°C to +175°C
Tolerance Control: ±0.2°C; Uniformity: ±0.5°C
Input Power

NEMA 5-20R120V, 60 Hz, 15A (20A minimum service)
Plugs into standard NEMA 5-20R Receptacle

(Export version available with 230V, 50Hz, 8A input,
supplied with power cord for destination country)

Inside Dimensions 16" W x 12" H x 14" D (1.55 Cubic feet)
Outside Dimensions Bench Model 115A-B: 24" W x 44" H x 26" D
Floor Model 115A-F: 24" W x 61" H x 26" D
Net Weight Bench Model 115A-B: 275 lbs.; Floor Model 115A-F: 300 lbs
For detailed specifications CLICK HERE >>
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