Binder KBF PRO 260 Constant Climate Chamber, −20 °C to +100 °C, 10 % to 98 % rh, 262 l, 9020-0440
€20,500.00
- Constant-climate chamber with extended temperature and humidity range, size 260
- Temperature range −20 °C to +100 °C, humidity 10 % to 98 % RH
- 262 l usable volume
- Suitable for material testing, including THB conditions and tests near freezing point
- Capacitive humidity control with steam humidification
- According to the manufacturer, up to 40 % energy savings compared with the previous model
- Class 3.3 adjustable temperature monitor according to DIN 12880, with visual and audible alarms
Product information "Binder KBF PRO 260 Constant Climate Chamber, −20 °C to +100 °C, 10 % to 98 % rh, 262 l, 9020-0440"
Positioned between a compact benchtop chamber and a large-format climatic chamber, the Binder KBF PRO 260 is a versatile all-rounder for material testing under extended temperature and humidity conditions. With a usable volume of 262 litres and a control range from −20 °C to +100 °C, it covers both standard stability tests and more demanding stress profiles. This makes it suitable for laboratories that need to switch between pharmaceutical stability testing and technical materials testing within the same unit, without having to maintain two separate climate chambers.
The Binder KBF PRO 260 Constant Climate Chamber is part of Binder’s KBF PRO series and specialises in the combined control of temperature and relative humidity. The extended temperature range of −20 °C to +100 °C, together with an operating range with humidity control of 10 °C to 90 °C at 10 % to 98 % RH, goes well beyond the standard range of the KBF series. This means that, in addition to standard ICH stability profiles, the KBF PRO 260 can also handle all kinds of material testing, for example at temperatures close to freezing point or under THB (Temperature Humidity Bias) conditions at +85 °C and 85 % relative humidity. Here too, the unit can be used as an ICH photostability test chamber or a plant growth chamber with optional light modules.
Control technology, humidity control and safety features
The unit is controlled via a touchscreen controller with interval and real-time programming, operated via an ergonomically adjustable control terminal. Humidity is regulated by a capacitive humidity sensor in combination with responsive steam humidification. A Class 3.3 adjustable temperature monitor according to DIN 12880, featuring visual and audible alarms, safeguards unattended test runs, whilst a signal triangle with an illuminated status indicator displays the unit’s status even from a distance. Ethernet and USB interfaces, as well as an internal data logger with an open measurement value format, enable comprehensive documentation; the APT-COM Basic Edition software is included as standard. Users wishing to integrate the analysis into an existing quality management system can, if required, supplement the software with paid editions offering extended analysis functions.
The inner chamber is made of stainless steel; the two inner doors, made of metal-oxide-coated safety glass, allow a clear view of the samples without affecting the climatic conditions. Two outer and two inner doors, each fitted with a door heater to prevent condensation, together with a robust housing construction utilising HIT sandwich technology, ensure a stable, well-insulated chamber that quickly restores its climatic conditions even following frequent door openings. Cooling is provided by a modern inverter chiller using the natural refrigerant R-290, which, according to the manufacturer’s data sheet, offers up to 40 % lower energy consumption compared with the previous model.
Cost-effectiveness in continuous operation
Constant climate chambers generally run continuously for weeks or months, so energy consumption has a significant impact on running costs. According to the manufacturer’s data sheet, the modern inverter refrigeration technology with a natural refrigerant saves up to 40 % in energy compared with the previous model, without compromising on the precision of temperature and humidity control. For laboratories with several climate-controlled cabinets operating in parallel, this difference adds up significantly over the service life; furthermore, the natural refrigerant has a lower global warming potential than older refrigerants.
Typical applications
This medium-sized model already allows a noticeably larger sample volume to be processed in parallel, without reaching the dimensions and space requirements of the largest models in the series.
- Material testing within an extended temperature range from −20 °C to +100 °C
- THB conditions (+85 °C, 85 % relative humidity) for electronics and materials reliability testing
- Combined pharmaceutical stability testing and technical material qualification in the same instrument
- Photostability tests in accordance with ICH Q1B using an optional light module
With optionally available light modules, the Binder KBF PRO 260 can be expanded to include ICH Q1B-compliant photostability tests or LED plant light modules for plant growth experiments, without the need to change the base unit. Two stainless steel grid shelves are included as standard; if required, the chamber can be fitted with additional grid shelves, including reinforced ones, up to the maximum number of shelves. External water supply systems are also available for humidity control, whilst software documentation upgrades are available up to the GLP Edition.
Technical details
| Temperature range | −20 °C to +100 °C |
| Temperature range with humidity control | 10 °C to 90 °C |
| Humidity range | 10 % to 98 % rh |
| Usable volume | 262 l |
| External dimensions (W x D x H) | 930 x 900 x 1,396 mm |
| Unit weight (net) | 197 kg |
| Connected load | 1.6 kW |
| Rated voltage | 230 V |
| Refrigerant | R-290 (natural refrigerant) |
| Refrigeration technology | Inverter compressor cooling |
| Humidity sensor | capacitive, with steam humidification |
| Adjustable temperature monitor | Class 3.3 according to DIN 12880, with visual and audible alarm |
| Control | Touchscreen controller with time-based and real-time programming |
| Data interfaces | Ethernet, USB |
| Inner tank | Stainless steel |
| Inner doors | Metal oxide-coated safety glass |
| Shelves (standard / max.) | 2 / 16 |
| Max. load per shelf / total | 40 kg / 200 kg |
Scope of delivery
- 1x Binder KBF PRO 260 constant climate chamber, 230 V (9020-0440)
- 2x stainless steel grid shelves
- APT-COM Basic Edition (software for device connection)
- Operating instructions
Three retrofit options: LED plant light, ICH light and CO2 gassing

Pictured: KBF PRO 260 with ICH light module. The module is an accessory.
The KBF PRO 260 accepts three different modules: the LED plant light module (8012-2439), the ICH light module (8012-2441) and the CO2 gassing module (8012-2140 in the range 0 to 1 vol.%, 8012-2138 in the range 0 to 20 vol.%). In LED operation, size 260 reaches a PAR photon flux density of 1,660 µmol/m²/s at a distance of 25 cm, and the temperature and humidity range narrows to −10 °C to +60 °C and 10 to 90 % relative humidity. With the ICH module, VIS illuminance is 38 klx and UVA irradiance is 37 W/m², the ICH Q1B test duration is 38 hours at 10 °C to 50 °C and 10 to 80 % relative humidity. For fitting the LED light strips, grid shelves with U-rails are recommended (8012-2390).
The modules are accessories and not included with the chamber. You will find them with prices under "Matching modules" on this page; more on our Binder page.
Individual requirements & procurement service
A wide range of accessories is available for the Binder KBF PRO 260, such as lighting and LED plant light modules, reinforced or additional grid shelves, calibration certificates with varying numbers of measurement points, maintenance contracts with different scopes, and external water supply systems for humidity control. Do you require any of these accessories, a bespoke configuration, or assistance in selecting the right unit for your application? Through our procurement service, we will be happy to assist you with procurement and configuration.
| Volume: | 262 l |
|---|