I only received this an hour ago so I'm admittedly making some hasty judgments. Also remember that my house is old with old fashioned cloth insulated wiring. This is what electricians refer to as column and tube (porcelain) wiring. Adding to my difficulty finding wall studs is that my walls use a lathe and plaster. It's an ugly, rough "spray on the walls" type plaster. If you've seen crumbled plaster of Paris sprinkled with oatmeal, you have an idea. It's thick, maybe 1/2 to 5/8 inch plaster over 1/4 board. I believe this combination represents the worst case scenario for any herd finder. Here's what I experienced: One annoyance is that the spit finder has a sharp bottom that really sticks to rough plaster. I had to pull it at a slight angle to keep it moving. A smooth, rounded base greatly enhances this product. A 9V battery was included. I gave it a "tongue test" and the battery was very fresh. When I tried to turn the device on, it refused to stay on. It turns out that you have to hold down the power button for about two seconds for it to click into place. The display is backlit quite brightly green, but the LCD has a rather low contrast ratio and a poor viewing angle. The view shown in the photos is fairly accurate, but viewed at an angle or from top to bottom it is almost invisible. Just remember that you need to look at the device face to face to see a clear display. I'd love to give a definitive answer on the devices' efficiency, but my old-school design makes the results very mixed. This suggested that the wiring in the walls was placed diagonally rather than vertically or along lintels and window sills. Old wiring? In some cases I could see hairpins, but the intervals were irregular. Modern designs mostly use 16" lug spacing, but I've seen 18" or 20" spacing. Is it because the house was built in the 1890s? I was under the impression that this product would work quite well in a more modern design style, but I'm afraid it will be of limited use here. I'll try to use the device to give me cues on where to drill or cut, but I suspect I'll have to use a drill to drill small 1/8" pilot holes and fill in the imperfections. Tired but safe. Sorry I can't give a more accurate review but if your home is a similar old school I will have to recommend a different product.
Thermometer B.Well WF-4000 white
57 Review
Cable tester BENETECH GM60
15 Review
Room temperature and humidity sensor Aqara Temperature and Humidity Sensor white
25 Review
VIVREAL 4 In 1 Stud Finder Wall Scanner With LCD Display - Center Finding Beam Finder And Sound Warning For Wood, AC Wire, And Metal Studs (Black/Silver)
24 Review
Kapro 307-08-TMS Try And Mitre Layout And Marking Square With Stainless Steel Blade, 8-Inch Length
18 Review
Triangle Group TR918 225/45 R18 95V summer
61 Review
π CAMWAY 6 Inch Digital Caliper with LCD Display, Electronic Vernier Caliper, 150mm Stainless Steel Feeler Gauge, Plastic Digital Caliper Set for Zero Setting Inside/Outside Diameter, Depth, and Step Measurement Tool
3 Review
Kapro - 353 Professional Ledge-It Try & Mitre Square - For Leveling And Measuring - Features Stainless Steel Blade, Retractable Ledge, And Etched Ruler Markings - 12 Inch
23 Review