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Campbell Stokes sunshine recorder |
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1281/2 |
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is manufactured to the British Meteorological Office's specification. The sphere is made from well-annealed optical glass and the hours the sun shines are recorded onto a card inserted into the base of the recorder. The cards are marked with hourly intervals. A transparent plastic template is available as an optional extra and is used to help measure the curved trace accurately. Two models are available: the choice depends on the latitude at which the recorder is to be used. Record cards are included for the first year.
1281 for tropical latitudes 0° to 45° N or S
1282 for temperate latitudes 45° to 65° N or S
1283 Record cards for catalogue No 1281
1284 Record cards for catalogue No 1282
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