This instrument uses shorter tubes and the design incorporates a "slide rule" type calculator to determine the %RH.
The body of the instrument slides away into the handle providing complete protedtion when not in use.
Size: 210mm x 36mm x 16mm
Tube Filling Range Product No
LO-tox™ Spirit -5 + 50 °C only 13/606/2
LO-tox™ Spirit 20 + 120 °F only 13/606/1