Profile: Core Enterprises, Inc. is a full-service product development & contract manufacturing company specializing in portable instruments for HVAC/R, test & measurement, analytical instruments, automotive diagnostics, industrial and consumer products. Our products are gas leak detectors, digital scales and scale accessories. Our AccuTools™ eL-320 combustible gas leak detectors feature simple, one button operation with two sensitivity modes, enabling quick & easy location of large and small leaks. Our AccuTools™ DS-220R charging scales measure in kilograms, pounds, pounds & ounces and ounces. They feature 100 kg (220 Lb.) capacity, 2 gram (0.1 oz.) resolution and 0.5% accuracy under all conditions.