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Kemo M048N Ultrasonic Generator Repels Animals, Birds and Insects. For Connecting Piezo Speakers. For Mounting in Storage Rooms, Kitchens, Warehouses, Gardens

Kemo M048N Ultrasonic Generator Repels Animals, Birds and Insects. For Connecting Piezo Speakers. For Mounting in Storage Rooms, Kitchens, Warehouses, Gardens

Q: Birds can't hear ultrasonics as they have a hearing frequency lower than a human. How does this device deter birds?

I bought this a while back to stop a dog barking across the road from me. It did work against the constant barking. The owner of the dog said it was driving his dog crazy. I explained to the owner what it was and he started taking the dog in when it got noisy. I then took the ultrasonic generator down - it had done its job!

Q: Is it possible to use more than 2 Piezo speakers with this? Cheers.

I use four piezoelectric speakers on mine. You could use as many as like by wiring them in a series / parallel network but probably not much point as such an arrangement simply distributes the same power output to more speakers.

Q: The frequency control is numbered 1 through to 10, how can you tell when its at 22Khz?

You can’t tell with any real accuracy unless you have measuring equip. E.g. frequency counter, oscilloscope, or spectrum analyser. The closest you could get to a setting of 22 KHz, and assuming the control operation is linear, which it almost certainly will be, is to take its maximum specified frequency - 40 KHz, from memory? - and set the control approximately 55% clockwise from its fully anti clockwise position. I’d advise you check to confirm the max frequency then apply the above method accordingly. I wouldn’t be too concerned about achieving great specific frequency accuracy. I don’t think it’s all that critical in most applications. It’s very hard to know for sure how effective these devices are anyway. I bought mine to stop pigeons going into my open garage. I believe that it has been broadly very effective. But it hasn’t stopped the very occasional trespasser! I assume a small proportion of pigeons have hearing impairments. Just as humans do. Natural selection will deal with them I guess.

Q: There are two wires for speakers, but it says you can connect up to 5. How? If each speaker needs a positive and negative. I don't get it.

You need to provide a parallel connection via your own circuit board or connectors. The 2 output wires would form the input to your speaker set up.

Product ID: 53738420

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Details

Brand
Kemo
Number of pieces
1
Is electric
Yes
Target species
Mosquito Mouse
EU Spare Part Availability Duration
1 Years
Unit count
1.0 count

🌿multi-environment use

🔊12V ultrasonic power

🛠️compact & durable design

Frequently Bought Together

Kemo M048N Ultrasonic Generator Repels Animals, Birds and Insects. For Connecting Piezo Speakers. For Mounting in Storage Rooms, Kitchens, Warehouses, Gardens

POFET 4pcs Waterproof Tweeter Piezo Treble Piezoelectric Speaker Ultrasonic Type for in repellers, bird repellers, dog training devices

Description

🚫🐜 Ultrasonic defense for a pest-free lifestyle—because your space deserves the best!

COMPACT ROBUST - Sleek 7.5 x 4.5 x 2.8 cm size with a durable build, perfect for discreet mounting in any space.
VERSATILE PLACEMENT - Ideal for storage rooms, kitchens, warehouses, and gardens—protect your entire property effortlessly.
ULTRASONIC PRECISION - Harnesses 12V ultrasonic waves to effectively repel animals, birds, and insects without harmful chemicals.
PLUG PLAY CONVENIENCE - No batteries needed—simply connect to a 12V power source and piezo speakers for instant activation.
ECO FRIENDLY PEST CONTROL - Silent, chemical-free solution that keeps your environment safe and pest-free, aligning with sustainable living values.

The Kemo M048N Ultrasonic Generator is a compact, 12V-powered device designed to repel animals, birds, and insects using ultrasonic waves. Its durable construction and versatile mounting options make it ideal for various indoor and outdoor environments, providing an eco-friendly, chemical-free pest control solution without the need for batteries.

Specifications

Manufacturer	Kemo
Part number	M048N
Item Weight	100 g
Product Dimensions	7.5 x 4.5 x 2.8 cm; 100 g
Item model number	M048N
Size	(L x B x H) 75 x 45 x 28 mm
Voltage	12 Volts
Item Package Quantity	1
Number of Pieces	1
Included components	Kemo M048 marten repellent 12 V, pack of 1.
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Birds can't hear ultrasonics as they have a hearing frequency lower than a human. How does this device deter birds?

Is it possible to use more than 2 Piezo speakers with this? Cheers.

The frequency control is numbered 1 through to 10, how can you tell when its at 22Khz?

There are two wires for speakers, but it says you can connect up to 5. How? If each speaker needs a positive and negative. I don't get it.

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