Humboldt H-1240 Automatic Universal Penetrometer, 120V, 60Hz. An automatic instrument for precision penetration measurements of bituminous materials, cement, petrolatum, waxes, food, cosmetic, and pharmaceutical products. Digital timer with release mechanism is switchable to seconds, minutes, or hours. The timer may be set in 1/10th second intervals. Plunger releases with the push of a button and automatically stops after the preset time duration. 5" diameter indicator dial, graduated in 400 divisions of 0.1mm, corresponding to 40mm penetration. Zero preset to eliminate errors. Includes 47.5g plunger with 3.2mm hole, bituminous penetration needle, and two loading weights (50g and 100g). Overall dim. 10-1/2 x 13 x 22" (266.7 x 330.2 x 558.8mm). Supports the following standards: ASTM D1168, ASTM D1321, ASTM D1403, ASTM D1831, ASTM D217, ASTM D5, ASTM D5329, ASTM D937, AASHTO T49, AASHTO T187. Shipping weight: 32 Lbs.