Features: Universal Tacho Sensor delivers precise RPM measurement for generators with ±1% accuracy, featuring copper construction for enhances corrosion resistance in extreme environments. Engineered with a wide operating range, IP67 waterproof rating, and two wire connection for easy installation, this sensor outputs stable signals for reliable gear rotation monitoring. Ideal for industrial mechanic, power system technicians, and equipment maintenance professional requiring compatibility for multiple generator models. Perfect for harsh outdoor environments like construction sites, marine applications, or emergency power setups where consistent RPM tracking ensures generator performances. Its <1mm induction distance and duty cycle signal ensure real time responsiveness, enabling efficient load adjustments to boosts operational efficiency. Specifications: Material: Copper Thread length: about. 60mm/2.36in Pattern: 2 pattern optional Package Includes: 1pc Tachometer Sensor note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.