
Professional Durable Steel Zoom Sag Manual Scope Tools Set. ISO 9001:2015 Certified: Manufacturing process meets international quality standards with rigorous inspection. Explosion-Proof Design: Features fire/flame retardant and explosion-proof capabilities for safe operation. Moistureproof Construction: Durable steel build ensures protection against moisture and harsh environments. Versatile Mounting Options: Includes tower and pole mounting adapters for flexible theodolite installation. Wide Angle Range: Applicable for angle iron sizes ranging from 56mm to 125mm. High Magnification: Equipped with a 4x magnification factor for precise sagging observation. Manual Power Source: Designed for manual work, ensuring reliability without external power needs. ODM Service Available: Customization services available for specific client requirements.