The Avery Weigh-Tronix Model 3700LP Bench Scales are constructed of an aluminum or mild steel body with a stainless steel shroud. Each model includes a six digit, seven segment LCD display with backlight and all are equipped with RS232. The front panel overlay includes UNITS, PRINT & ZERO keys and supports switching of up to 2 units of measure selected from lb, kg, oz and g. Built-in serial protocols include formats for NCI standard, model 3835, 8213 emulation and also for the WP-233 lister and Zebra 2844 label printers. Auto print is also selectable. Each comes with a front mount display bracket. They can be purchased with or without a factory installed battery (battery not available on 3700LP 10″ x 10″ models).