FENJANER Archery Arrow Spinner Tester, Arrow Shaft Straightness Detector & Balance Check Tool for Carbon Arrow, Vane & Broadhead Tuning (Electric Add-On Module)

FENJANER Archery Arrow Spinner Tester, Arrow Shaft Straightness Detector & Balance Check Tool for Carbon Arrow, Vane & Broadhead Tuning (Electric Add-On Module)

• [IMPORTANT COMPATIBILITY NOTICE | NON-STANDALONE MODULE ONLY] This product is an electric add-on expansion module ONLY, NOT a complete standalone arrow spin tester unit. It includes a high-precision electric drive unit and visual straightness gauge, and MUST be paired with your existing compatible arrow spin tester / arrow selector to operate. Exclusively fits base units with a width of 1.181 in. (30 mm) — please confirm your base dimensions before purchase.
• [MIMICS REAL IN-FLIGHT TRAJECTORY | MAXIMIZE SHOT ACCURACY] Delivers uniform, jitter-free stable spin that perfectly replicates your arrow’s real in-flight rotational trajectory. It gives you extended, unobstructed visibility to precisely fine-tune arrowheads, fletching alignment, and nock fit, eliminating flight wobble for ultimate stability and pinpoint shot accuracy.
• [70% FASTER INSPECTION | CUT TEDIOUS MANUAL WORK] Powered by a high-stability electric motor, this module cuts arrow straightness inspection time by 70% compared to slow, tedious manual hand-spinning. Simply secure your arrow on your existing arrow spin tester fitted with this module, and instantly detect shaft warpage, deflection, and straightness defects in seconds.
• [30,000+ HOUR RUNTIME | ULTRA-DURABLE & WHISPER-QUIET] Rigorously tested for 30,000+ hours of continuous operation, this heavy-duty motor is engineered to reliably inspect hundreds of thousands of arrows with zero risk of overheating, motor burnout, or premature failure. Its whisper-quiet design eliminates disruptive noise, ideal for home workshops, archery shops, and indoor shooting ranges.
• [SIMPLE INTUITIVE OPERATION | FOR ALL ARCHER SKILL LEVELS] Features a high-clarity visual straightness scale for instant, no-guesswork inspection: as the arrow spins steadily, shaft wobble directly reveals your arrow’s true straightness. The entire setup is simple and intuitive, with no complicated tools or professional expertise required — perfect for both new archers and seasoned competitive shooters.