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Pocket Sling Psychrometer
Product Number: SB27109
A self-contained sling pocket case and slide rule sling psychrometer made of high-impact plastic. Designed for easy handling and carrying, the psychrometer measures 5/8 in. x 1-5/8 in. x 8-1/3 in. L. The bigger, sharper, white-on-black scale markings permit easy-to-read, accurate readings. Red spirit filled. Range: 20°F to 120°F.