Electronic enterprises manufactures handheld airborne particle counters in a wide range of models namely 3886, 3887 with six and three size channels. Model 3886 comes in a six channel counter with 0.3, 0.5, 1,3,5,10 micron size ranges which is suitable for validating clean rooms upto 1000 standards. For the next levels model 3887 can be used which comes in a three channel counter with 0.5,1,5 micron size ranges. Both these models are available in compact with a 3 line lcd display to see the counts and operate on 4 nos aa size batteries. These handheld particle counters come with air velocity probe and / or temperature / rh probes, thermal external printer, and carrying case. At an extra cost interface to operate the counter and download the data to excel format to pc are available as options. The company supplies a traceable factory caliberation certificate alongwith each counter.