I was at Home Depot (Sunnyvale, CA) and they are selling their Bullseye auto leveling laser/stud sensors for $19.99 till 12/24.
Sign specified both BDL110S and BDL190S. Not sure what the difference between the two are, so I got the 190s as its a bit smaller, has LCD and looked like a newer model. According to the manual the 190s does 3/4" stud detection and 1 1/2" AC. 110s does 3/4" wood, 2"/1" metal, and AC is not specified.
Sign specified both BDL110S and BDL190S. Not sure what the difference between the two are, so I got the 190s as its a bit smaller, has LCD and looked like a newer model. According to the manual the 190s does 3/4" stud detection and 1 1/2" AC. 110s does 3/4" wood, 2"/1" metal, and AC is not specified.