370287 RECORD PAPER 7DAYS FOR, BAROGRAPH NS-311(55 SHT)

A newly designed self recording barometer. Very compact with a wide recording range. Can be installed in an indoor or outdoor instrument shelter. Provides an inked record of the station pressure for 24 hours or 7 days. Furnished with 7 days revolution recording paper for one year (55 sheets) and gear for one day drum rotation. One day recording paper is available upon request.