Best Process Controllers
The tap guide aligns the tap with the center of the hole and maintains the tap at a right angle to the hole.
Reviews
Find Best Price at Amazon"Not badly priced, and has a great fit & finish!"
"I've used this to tap a bunch of holes, and it simply works."
"I bought this to use for making layout lines in material on my milling machine."
"Hadn't used it until recently, but man what a lifesaver!"
"Good quality tool and works exactly as it is suppose to work."
"Very pleased with this item."
"Well packaged, shipped on time."
Brown & Sharpe was acquired by Hexagon Metrology in 2001, and has since focused on precision measuring equipment and metrology hand tools. The Brown & Sharpe line of coordinate measuring machines (CMMs), optical measuring systems, benchtop measuring machines, and precision hand tools offer consistent, high-quality design, construction, and performance.
Reviews
Find Best Price at Amazon"The shop I work in is relatively quiet and I love the audible feature of this edge finder, but if you work in a loud shop, save yourself a few bucks and buy the regular version."
"It works well and I use it when the shop is not too noisy."
"Not exactly precision made but it does what it's supposed to do adequately."
"this product is everything it is supposed to be thank you."
"As others have said, the audible part is not very audible in a noisy area, although I can hear it in my shop with the compressor running and the music playing (rockabilly)."
"Bought for Son's engineering class at UNCC."
"Well made and works good."
The rotating instrument has a machine spindle that must come into contact with the spinning work surface for the tool to work. The Brown & Sharpe line of coordinate measuring machines (CMMs), optical measuring systems, benchtop measuring machines, and precision hand tools offer consistent, high-quality design, construction, and performance.
Reviews
Find Best Price at Amazon"I think it will work well for what I purchased it for."
"Nice piece."
"much more durable than the mitutoyo."
"repeats, and works great."
"I've had a few of these over the years."
"As for how it works, it works well, but I might have preferred more motion out of the head or an easier way to tell when the edge is reached (if I was given the option)."
Best Thermostat Controllers
Designed to work with the wires you already have, Sensi thermostat does not require a common wire (c-wire) in many cases, so it is compatible with most heating and cooling systems* (U.S. and Canada only). Set your Sensi thermostat to automatically adjust your homes temperature for location-based temperature control with geofencing, or quickly create a 7-day schedule to reduce wasteful heating and cooling when no one is home. Integrates with Amazon Alexa for voice control and Wink smart home platforms, and works with Google Assistant and Google Home using the free Wink app.
Reviews
Find Best Price at Amazon"In my research I learned that my primary complaint the Nest - that the temperature swing was too wide - was addressed by Sensi's "cycle rate" setting. Nest's no-button design is cool, but using a thermostat is not a lecture in UX minimalism, and black-and-chrome doesn't really disappear into the background of my home (white trim and all). Granted, we didn't also install a second Nest to have more temperature sensors, and we didn't buy their $200 talking smoke detectors which also report environmental statistics back to the thermostat. Most people won't care about this but being a network security engineer, I'm impressed that the thermostat has exactly 0 open TCP ports, outbound communication is with one IP, and total traffic is very modest."
"--. I had been wanting to get a WiFi Thermostat for a long time now, but I held off because I was worried that I would buy one that wouldn't be compatible with my home or that I wouldn't be able to figure out how to install it. You select the wires that your current thermostat has, and then the app tells you what to label them and where they will go in the new thermostat. I had never replaced a thermostat before, and it took me under 30 minutes (which includes unboxing, looking for screwdriver, looking for AC unit shut off switch, watching how-to videos included with the app, etc). The app is handy because it also tells you your local Hi and Low temps from the forecast as well as the humidity in your home, upcoming schedule, set temp, actual temp, and the background is either blue, red, or grey depending on if your system is on Cool, Heat, or off at the moment. The only thing this is missing is a few more advanced options for the app, such as specific alerts (like if the temperature is changed manually, I would like to be able to get an instant alert on my phone) and an air filter change reminder that can be set for a certain amount of time (like 1, 2, or 3 months)."
Best Phase Angle Controllers
Alligator Clips: They can easily involve the terminals of the control panel to be tested, guaranteeing reliability and safety. Limit Support Voltage: 2000V/minute (impulse voltage 4000V). Operation Frequency Range: 20Hz - 400Hz. Limit Time for continuous use: 60 minutes maximum at 60V AC; 4 minutes maximum at 600V AC. Fast and accurate measurement, efficient, effective, reliable, easy and safe to use.
Reviews
Find Best Price at Amazon"These are great tools."
"I think the price says it all."
"I work with generators and when completing startups or connecting a back up to any three phase service this meter is all I need."
"This is a great tester for the money."
"Works just like advertised."
"It's real."
Best Motor Speed Controllers
Control Power: 0.01 - 1000W(Max current :15A). With power reverse connection protection, has complete protection from overvoltage, 20A to quickly fuse the ceramic fuse ,can use PLC voltage to control directly. RioRand™ Upgraded 6V-90V 15A DC Motor Pump Speed Controller.
Reviews
Find Best Price at Amazon"This is much better to control the vent fan speed to reduce the noise then to listen to the normal fan’s high speed whirlwind sound when cooking."
"Sadly it can only run in one direction, but I can't blame them, it's hard to find a good bidirectional controller that isn't crazy expensive or that you have to build yourself."
"Works great, using it to control two 24vdc mini lathe motors, has plenty of power to handle both motors."
"I used this to control the heated seat on my Goldwing motorcycle."
"Got the speed control I wanted without having to solder a board together."
"Performs well with even small magnetic motors typical to RV roof vent fans."
"I imagine it was still drawing a tiny amount of power, though the heatsinks were cold and it was probably not enough to do anything to the motor other than give the wires a little magnetic field."
"Exactly what I was looking for and sales description is accurate."