FIELD: oil and gas production. SUBSTANCE: device comprises successively enabled piezoceramic transformer acting as sensor, network noise suppressor, filter with adjustable high- and low- frequency transmission band, amplifier, analog-digital converter, memory unit, display, and control unit. Output of the latter is connected to second entries in memory unit and display and its input is connected to output of analog-digital converter. Device can also be utilized when measuring level of liquid by acoustic location technique. EFFECT: enlarged functional capacity of device and improved quality of controlling depth casing pumps. 1 dwg
