Electronic Sensor Technology (EST) has its first, portable zNose Model 4300 available. With the same high-level zNose performance, this newest addition to the company's portable ultra-fast GC line is battery operated and uses Bluetooth wireless communication. This allows the controlling computer to be off-site up to 100 meters away.The carrier gas refill is accomplished by using portable miniature replaceable cartridges. The Model 4300 is ideal for field operation where there is a need for fast identification of bio-chemical and any environmental or security threats. EST's product lines, with this added new model will now be able to address more customers' requirements and/or compliment other security detection systems.