Description

Comprises red spirit filled glass bulb on the base of capillary tube in wooden frame with black engraved markings and figures.

Range: 20 c to + 50 C x 1 C, -20 c F to 120 c F x 2 c F.

TYPE              RANGE

1.                           as above          but scale printed on aluminium sheet which is fixed on wooden case.
2.                           as above          but scale printed on plastic      made of all plastic.