Temperature and climate test chambers WTL and WKL

Reproducible temperature and climate tests can be performed directly at your workplace. This is possible with the WTL and WKL chambers of Weiss. This series was specifically developed for use in laboratories.

WTL, WKL, temperature and climate test chambers

Compact dimensions – considerable intrinsic values – small, but highly effective!


  • Test space volume: 34 to 100 litre
  • Maximum temperature: +180°C
  • Minimum temperature: +10 to -70°C

Only WKL

  • Temperature range: +10 to +95°C
  • Humidity range: 10 to 98 %r.h.


Small Temperature and Climate Test Chambers


  • Ethernet interface
  • Large sight glass and illuminated inspection chamber
  • High-quality dual insulation
  • 50mm gate opening
  • Upper and lower temperature threshold, test specimen protection pursuant to EN 60519-2 (1993) with adjustable separate sensor
  • Control system


  • Software package SIMPATI
  • Temperature measurement on specimen
  • Capacitive humidity sensor
  • Interface IEEE 488 
interface RS 485
  • Compressed air dryer
  • Additional access ports
  • Additional shelves
  • Mobile base (standard on WKL 34/70 and WKL 64/70)
  • Automatic water supply (WKL)
  • Demineralisation unit (WKL)
  • Special voltages

WTL, WKL, test chambers