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The Fairmount Hygrograph has the following features:
General description : Cast brass side frames, solid brass base, Mechanism machined & fabricated from high quality brass, polished and lacquered. Supplied with fabricated, vented sheet steel cover finished in blue hammer finish stove enamel with convenient carrying handle.
Humidity section :
Range : 0 to 100%
Accuracy : +/- 3% between 20 & 80%
Sensing element : Specially treated human Hair
Recording section : (Either)
Battery operated quartz clock with simple mechanism for changing rotation from daily to weekly or monthly or Clockwork clock - Daily or weekly rotation selected by change gears provided.
Recording is effected by easily changed fibre tipped pen.
Ordering Information:
FM6145 Hygrograph
FM6145/1 Pack of 100 daily charts
FM6145/2 Pack of 100 weekly charts
FM6195 Fibre tipped pen
Other ranges and types made to order.
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