CAS ER Junior Price Calculating Scale 30 lb. ERJR30L The ERJR30L price computing scale from CAS is an economical high quality 30 pound certified scale with LCD display and standard AC and rechargeable battery power. NTEP legal for trade. ER JR. features price per pound calculations. Scale is ideal for direct sale of commodities in stores such as supermarkets, deli's and local produce markets. Price: $255.00 Quantity