Sound level meter / noise level meter (sound measuring apparatus or decibel meter)

Rotary hammer drill 230 v, 50 hz, single phase power rating in watt 800, rotation speed of the hammer (in rpm)-1000, impact rate (ipm)-4300, noise level -99 noise level db. length of 3 pin 5 amp electric cord -5 metres, number of drill 30cm bits provided-4 nos, selector switch for - 36 position drilling/ chiseling. as per specification attached. make only:- bosch, dewalt, tiger, velmoc, msi, stanley, foster, or similar.

Supply of bearing and machine noise kit (electronic stethoscope). technical details: frequency range:30 hz - 15 khz, operating temperature: -10 to +45 degrees c, output volume: adjustable in 15 levels, display: lcd (black &white), sound volume: up & down, battery low signal: yes, case contents: instrument, headset, probe: 70 mm and 300 mm, 2 x aa alkaline battery, instructions manual. make/model: skf- tkst11 or equivalent. special conditions - 1) calibration certificate by any approved gov. la