Bell and Howell Ultrasonic Pest Repellers: How many of these are needed per floor of a house?
497384
you need as many as you have rooms with doors. If you have an open area that doesn't have walls or doors, you only need one there. I put one in every bedroom, bathroom, 1 in my living/family room and 1 in my kitchen for a total of 6.
1128268
We purchased three of these for a single level house of 2700 sq. feet. I put one at either end of the house and one in the garage. We haven't seen any mice since they were installed, so I have to think that they're working great! I was skeptical, but desperate, and it paid off! I would start with two, one at each level. Good luck to you! NS
1143576
Well, it did not happen with me. The mice vanished when I plugged the units in the wall socket. That was four months ago, and they never came back despite the ferocious winter. I find these devices to be excellent. Our home has wooden floors, vaulted ceiling, ceiling is wood. The ultra sounds bounce all over the place.
1691545
I think what you have is an electromagnetic and ultrasonic pest repellent, red means electromagnetic signals are being sent out, and green means ultrasonic signals are being sent out, both red and green should be going on and off constantly
1360247
The PestVacator PV800 makes no audible sound to humans or pets. But rest assured it is silently working in the background to rid your home of all pests and keeps them away. Just plug it in and forget it!
874138
Kai S., here is the number for Rob C. he works at D&R; Technology, the creator of the mice pest control device. 480-319-4660What I read is that they do hear according to the radius. But over time they figure it out. Give Rob a call, he was helpful to me.
1849572
I'm not sure. We use it for problematic cats and to deter nasty neighbors from letting their dogs crap in our yard.Inside the repeller there is a mechanism to adjust the ultrasonic tone, depending on what animal you want to scare away. It shows you a range for cats/dogs, rodents, etc. I think you'd be able to do experiment until you found the perfect tone. If you have a county agricultural extension office you may want to get their advice on the frequency. But I think the device is pretty self-explanatory and it *should* work for you. I could hardly believe how effective it was against cats and dogs. I think once you get the right frequency you won't have any problems. I'm not sure. We use it for problematic cats and to deter nasty neighbors from letting their dogs crap in our yard.Inside the repeller there is a mechanism to adjust the ultrasonic tone, depending on what animal you want to scare away. It shows you a range for cats/dogs, rodents, etc. I think you'd be able to do experiment until you found the perfect tone. If you have a county agricultural extension office you may want to get their advice on the frequency. But I think the device is pretty self-explanatory and it *should* work for you. I could hardly believe how effective it was... » Read More I'm not sure. We use it for problematic cats and to deter nasty neighbors from letting their dogs crap in our yard.Inside the repeller there is a mechanism to adjust the ultrasonic tone, depending on what animal you want to scare away. It shows you a range for cats/dogs, rodents, etc. I think you'd be able to do experiment until you found the perfect tone. If you have a county agricultural extension office you may want to get their advice on the frequency. But I think the device is pretty self-explanatory and it *should* work for you. I could hardly believe how effective it was against cats and dogs. I think once you get the right frequency you won't have any problems. « Show Less
832523
BTW, a little goes a long way. Just one quick burst should do it. Of course, I am only referring to yellow jackets. Not sure of it's affect on other pests.
1856182
Not really sure about your situation, but, being confined to a power chair, Hoveround, I shot a little Iinvict behind my appliances and under the sink. It's like a fishing lure, the bugs found it. I hope this will help and you don't have to move a lot of stuff.
1063588
Absolutely not. These critters don't live in the walls of your house, near the frequencies emitted by the device along the wires. Nor will they affect critters in your crawl space if you have one, away from wiring, or spiders up on the outside of the walls/ceilings. But they've kept the bugs out of my house for 16+ years, and I haven't had to spray.
1800477
it worked for me - w live on 2nd floor in apt building. Device covers up to 5000 sq ft,BUT - it all depends on how severe your issue is. Ours was pretty bad,plus mice were living in almost every apartment in our building,so it was hard to get rid of them....We have 3 devices now,and they helped,no mice in our home anymore.Depending on your square footage,I'd recommend getting at least two devices to be on the safe side.
331324
There are several settings for the ultrasonic sound frequencies. I have it set for rodents and it works great. There is a distinct setting for insects, and spiders. I can't answer whether it works on ticks since I purchased it primariy for mice. Since the setting for rodents worked even better than I hoped; I would assume the insect and spider setting may work as well too. Again, I haven't tried this setting and don't know.
2130394
Not sure, I live in a quiet area, except for my 4 legged pest and 2 legged owner.
933561
Depending on the density of your soil, you could use either 2 or 4 for that size area. Because the density of your soil may be difficult to determine, I'd suggest installing 4, evenly spaced. (The more dense the soil, the better the sound travels.) To insert them into the ground, I've found that using a small garden auger, the same diameter as the Mole Chaser, is a very effective. (I bought mine at a Home Depot.) Drill the hole and slide the Chaser into the opening. A snug fit is good. The alternative to this is digging a larger hole, inserting the Chaser and back-filling. This is less desirable as it allows 'loose' soil to surround the Chaser and diminishes it's sound. The auger method is very clean. A tip: After inserting the batteries into the inner sleeve, DO NOT insert the inner sleeve into the tube and allow it to drop with a thud to the bottom. Doing this may break the circuit board. Lower it hand, all the way until it reaches the bottom. Most important: Change the batteries out at 3 month intervals. Use good quality batteries, e.g., Duracell, and do not use re-chargables. Remember: Rodents will always burrow up to the Chaser immediately after installation giving you the impression that, "They're not afraid of it, it doesn't work!" This is incorrect. Burrowing rodents are territorial and protective of their environment. They will immediately investigate any "intrusion" into their domain. They will eventually find that they can't 'scare' the Chaser away and will become increasingly annoyed at it's constant buzzing. They then leave for more secure and quieter surroundings. Sort of like we do when we live next to lousy neighbors.
259348
They're very loud. We use a set of 4 to cover an 8000 sf daycare facility with two separate buildings, all keyed to a single panic button, A second location used three of them set up the same way. We use them to trigger emergency drills. They can be heard without difficulty throughout the property, and outside as well. They should be used indoors only, and connected to AC power although they have battery back up power as well. Not sure about the other reviews stating the units aren't loud enough. They emit a piercing wail that you want to get away from as quickly as possible. They would seem to be a sufficient deterrent to an intruder. They're very loud. We use a set of 4 to cover an 8000 sf daycare facility with two separate buildings, all keyed to a single panic button, A second location used three of them set up the same way. We use them to trigger emergency drills. They can be heard without difficulty throughout the property, and outside as well. They should be used indoors only, and connected to AC power although they have battery back up power as well. Not sure about the other reviews stating the units aren't loud enough. They emit a piercing wail that you want to get away from as quickly as possible. They would... » Read More They're very loud. We use a set of 4 to cover an 8000 sf daycare facility with two separate buildings, all keyed to a single panic button, A second location used three of them set up the same way. We use them to trigger emergency drills. They can be heard without difficulty throughout the property, and outside as well. They should be used indoors only, and connected to AC power although they have battery back up power as well. Not sure about the other reviews stating the units aren't loud enough. They emit a piercing wail that you want to get away from as quickly as possible. They would seem to be a sufficient deterrent to an intruder. « Show Less
1906839
We were given a B&H; Ultrasonic Pest Repeller after we had a hatching of small spiders and another one of small ants. This was in the fall of 2011, and within 4 days to a week, all the bugs were gone. Now this spring, I have noticed a couple ants and spiders around, so I don't know if these things wear out or not, but I'm getting a set of three to help the one that I currently have. I have every confidence that the new set will wo9rk as well as the first one I had.
483952
I have four and it seems to work well. We have units in bedroom and kitchen of our home. About 100 feet away we have units in our elderly Mom's bedroom and living room. They seem to work well. The wall construction can limit distance significantly. Wood walls and one metal skin wall seems to be no problem but two metal skins reduce effectiveness by a huge percentage. From our 100-year-old house into Mom's mobile home is loud at 200-300 feet (one wooden wall through the metal wall on her home). From a mobile home behind us into her mobile home (2 metal walls) maximum range seems to be 125 feet or so. I have four and it seems to work well. We have units in bedroom and kitchen of our home. About 100 feet away we have units in our elderly Mom's bedroom and living room. They seem to work well. The wall construction can limit distance significantly. Wood walls and one metal skin wall seems to be no problem but two metal skins reduce effectiveness by a huge percentage. From our 100-year-old house into Mom's mobile home is loud at 200-300 feet (one wooden wall through the metal wall on her home). From a mobile home behind us into her mobile home (2 metal walls) maximum range seems to be 125... » Read More I have four and it seems to work well. We have units in bedroom and kitchen of our home. About 100 feet away we have units in our elderly Mom's bedroom and living room. They seem to work well. The wall construction can limit distance significantly. Wood walls and one metal skin wall seems to be no problem but two metal skins reduce effectiveness by a huge percentage. From our 100-year-old house into Mom's mobile home is loud at 200-300 feet (one wooden wall through the metal wall on her home). From a mobile home behind us into her mobile home (2 metal walls) maximum range seems to be 125 feet or so. « Show Less