Automatic Vacuum Switch Senctrl, Load Sensing, On Delay, Shop Dust Collector Off Product Features NEW GENERATION: Add a manual switch to support three vacuum run modes: Auto, Off and On. You can not only turn the vacuum on/off automatically with the power tools, but also manually turn the vacuum on/off all time according to your actual condition. HIGH-QUALITY MATERIALS: Adopt 19.7 inch UL-certified US standard 14AWG power cord which allow passage with a large current more than 30A. Durable PC+ABS V0 grade flame retardant material case, reduce heat during use and extend service life. TURN ON DELAY. Load Sensing Technology. If the load connected to the 'TOOL' port exceeds 30W, the vacuum connected to the 'VAC' port will automatically delay 1s to start, which helps prevent circuit overloaded by large current if tool and vacuum power-on at the same time. SHUT OFF DELAY: Automatically delay vacuum turn-off by 7s to continue clearing the remaining airborne debris after the load connected to the 'TOOL' port has stopped. Saving time and electricity, reducing airborne toxin and work area noise that can lead many health problems. COMPATIBILITY: Support a wide range of cutting tools from handheld devices to large shop saws such as table saw, miter saw, track saw, chop saw, sander, router table, planers, shopvac, remote control outlet, automated vacuum switch, dust collection systems for woodworking and etc. Power rating should not exceed 120 VAC, 15 Amp, 60 Hz, 1875w. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!