Automatic Vacuum Switch Allow Power Tool/Table Saw to Turn Vac Cleaner/Accessory On and Off Automatically, Load Sensing, On Delay Prevent Circuit Overload, Shop Dust Collector Off Delay

I bought this for my bandsaw dust collector, and it is perfect, just what I wanted. It is set up with a delayed stop of a few seconds after I stop the saw to clear everything out, and it works very well. It saves me two steps of turning the dust collector on and off, and streamlines my process, which is exactly what I wanted. I like that it has the switch to set it to auto, on, or off also. It was a good buy and a valuable addition to my little shop.

As stated in the product description, the control turns the vacuum on 1 second after the power tool is started, thus eliminating a momentary overload and possible circuit breaker trip by preventing the high startup currents from overlapping. Then the vacuum continues to run for 7 seconds after the tool is stopped, giving the vacuum hoses time to purge all the sawdust.The only unknown at this point is how long will it last? Externally it appears well built, but I have not looked inside. If it gives trouble free service for years, I will be satisfied. Time will tell.

Good Product ! Still working as expected, cycles vacuum on/ off with my saw

Turns ona nd off when it should. No complaints.

UPDATE 2: After only a couple months, my replacement crapped out (again). Not only does the switched tool outlet not power on when the main tool is activated, no outlet works. It's a pile of junk. I'm happy that Senctrl proactively leaned forward and replaced my original unit, but the fact that two units in a row failed means I simply cannot recommend this for any serious use. I guess if I were more electrically savvy I might be able to crack this open and replace some defective parts (might be that the defects are replaceable by cheap but robust parts), but this hardly makes this a recommendation to buy. If I were you, dear prospective customer...please go shopping elsewhere (I have).UPDATE: Senctrl responded to my negative-ish review by offering me either a refund or a replacement product. I chose the replacement b/c a) I just wanted an auto vac switch that worked, and b) I do understand that some products simply fail earlier than expected, and was more than willing to give 'em a second chance.I am happy to report that the replacement arrived w/in a few days (Amazon normal), and works perfectly upon installation.I'll update this review if the product appears to fail in an unreasonably short timeframe, but for now, kudos to customer support for standing behind their product--I'm pretty sure that I got the replacement outside the official warranty, and for no questions asked. Happy days.//original review follows//I added this to my table saw setup, so I could simply turn on my saw and the attached shop vac w/ cyclone separator would start automatically, without me having to step around to switch it on. Worked like a charm, and I especially liked the feature that kept the vac powered for seven seconds after the saw stopped, to gobble up all those particles still swirling around.All was good for about five months, until one day it simply stopped working. Cold. More specifically, rocking the switch to "off" indeed means that the vacuum won't start. And the "(always) on" position works. It's just that the justification for this $30 switch, the "auto" position fails to power on the vacuum at all.Now, I can work around this by simply switching the rocker to "on" before I power up my saw, but again, this totally defeats the purpose of a little pricey switch box to begin with. And, yes, I verified the issue was not my vac by plugging in another device into the vac port. Clearly something in the unit fried, and this highly disappoints me. It's a solid state product and should last for years and years.Five months? Look elsewhere IMHO.

I bought this two years ago: worked great, really useful. Today the load sensor is not working, not turning the vac on when the tool is running. Good quality and utility, really useful while it worked.

I let people I trust use my power equipment but they want always cut the air vac on. This little switch solves that problem. It really works good.

Game changer when it comes to using the shop vac with any corded tools. I appreciate that you can switch between auto (when using the tool) or on (when not using the tool) to use the vacuum. Very handy when doing drywall finish sanding or a miter saw indoors. There is a little delay when the vacuum comes on, but it’s worth waiting 1 second vs going to turn on the vac and turn it off every time.A must have for any contractor/wood worker.