Basic Accuracy: ±(0.1%n+)rpm, (2.5-999.9rpm); ±(1%n+)rpm, (1000-99999rpm). Resolution: 0.1rpm (2.5-999.9rpm); 1rpm (1000-99999rpm). - Adopt the latest microprocessor technology and laser technology. LCD: 5-digital LCD with 18mm character in height.
eBay