Extech Data Systems offers its new portable S4000T 4-inch receipt printer. With its contemporary design and three wireless options, the lightweight S4000T is designed mainly for desk-top and in-vehicle applications. The S4000T comes equipped with an optional rechargeable lithium ion battery capability which makes it an ideal printer for vehicle-based applications where the driver also needs to occasionally take the printer from the cab. The S4000T weighs as little as 24 ounces. A clamshell-style loading system and push-button release for the paper door make changing paper rolls easy and convenient. Built-in detectors monitor temperature, voltage and paper-out.