We are offering handheld particle counter (sle-hpc). The sle-hpc handheld, lightweight, reliable and easy-to-use machine designed ergonomically. The model counts the airborne particles in six different size ranges simultaneously. Count data is displayed on a lcd screen (320240 pixels, high resolution) as total number of particles (cumulative count). Data can be easily downloaded to computer or printer for print out. It is specifically designed for on- site as well as offsite testing & analysis. 1 0.1 cfm(2.83 lpm) flow rate2 six particle-size channels(0.3, 0.5, 1.0, 2.0, 3.0, 5.0um)3 320 x 240 pixels lcd display4 rechargeable li-ion battery5 internal audible alaram6 95% ucl calculation7 large memory for storing data(1000 samples)8 data easily loaded to computer9 lightweight(0.6kg)technical specification:-model : sle-hpcchannel thresholds : 6 channels: 0.3, 0.5, 1.0, 3.0, 5.0umflow rate : 0.1ft3/min(2.83l/min)light source : laser diodecalibration particles : simt certificationmax. Concentration : 2, 000, 000/ft3zero count :