FORCE GAUGE The Extech High Capacity Force Gauge with PC Interface has a three-range tension/compression capability. The RS-232 interface connects to a PC for recording data for analysis. The large LCD with back light feature displays positive/reverse readings for easy readability. Features Available units of measurement include kg, newtons, or lbs Positive/Reverse display for easy readability RS-232 PC interface is included with optional software Specifications:  Kilograms range: 0.05 to 100kg Pounds range: 0.05 to 220lbs Newtons range: 0.2 to 980 newton Basic accuracy: 0.5%