The laboratory scale electronic models BDM30 are developed on the basis of the strain gauge force sensor. Aesthetic appearance, ease of use, small size and low acceptable price is their main advantage. The scales completely provide metrological characteristics of laboratory scales of the 4th class of accuracy in accordance with GOST 24104-88. Specifications Weighing scales BDM 30 LIP, g 30000 NMP, g 20 Discreteness of count, g 1 Choice of tare weight, g -30000 Accuracy class 4 Type of indicator Liquid-crystal (LCD) with illumination Working range t, ° С -10 ... 40 Weighing time, sec 3 Size of bowl, mm 300x210 Overall dimensions, mm 355х320х110 Power, V 220 Accumulators (optional) 6v 4,5 Ah Weight, kg 2.6. Scientific research; Jewelery production; Industry; Agriculture; Trade; Postal service.