1.  Item number  2.  Specifications required  3.  Specifications offered  4. Notes, remarks, ref to documentation  5.  Evaluation  committee’s notes 3.2  MINI CURRENT METER, 2 PIECES  • Measuring water velocities - in range of 0.03-2.5 m/s  Material - stainless steel  • Propeller diameter - 50 mm  Counting impulse - once per revolution of propeller  • Rod in sections, total length minimum - 1.5 m  Cable length - minimum 20 m  • Weight - approx. 5 kg  Kit box  Instruction manual 3.3  GROUNDWATER DIP SOUNDING METER, 3 PIECES  • Sounding meter to measuring water table to a depth – up to 50 m  Sounding meter signal - acoustic and light signals  • Measuring probe material - stainless steel and electroplated brass Measuring probe diameter and length – dia.15 mm and length of at  least 150 mm.  • Measuring probe resistance – water temperature 1-50 $^{o}$C; E.C.  50µS/cm - 200mS/cm • Tape material – acrylic, non-stretching Tape accuracy – labelling per 1cm, indications of dm, m  • Power supply – 4x AA batteries 3.4  SUBMERSIBLE PUMP SAMPLER, 2 PIECES  • Submersible pump set, for purging and sampling monitoring wells -  set for minimal water table depth of 90 m.  • The pump motor to be assembled to frequency converter suitable to  adopt power supply of 220V (+/- 10%) and 50/60 Hz, and creating a  controlled constant flow from 0.01 to 2 m $^{3}$/hour • The pump diameter - suitable to be install in borehole of at least  75mm • The tube, cooling jacket, service set, cable, hose with connection,  hose reel cart  • Pump set includes trolley for mounting hose and small diameter  delivery hose for sampling bottle • The tube/hose material - low-density polyethylene August 2020 EN-c4f_annexiitechspeciiitechoffer_en.docx  EN-c4f_annexiitechspeciiitechoffer_en.docx Page 9 of 76 