# Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes

Pack Repellers: Gecool A-MT09-B is a four-unit plug-in ultrasonic pest repeller set with four selectable modes, including a silent setting. The listing claims up to 1,200 sq. ft. \(111 m²\) coverage per unit and recommends one in each room, so treat the coverage figure as a per-device claim rather than a whole-home guarantee.

- [Original product page](https://bargainpostbox.co.uk/product/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [View offer](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Gecool
- Model: A-MT09-B
- Category: Tools & Garden > Pest Control & Repellents
- Price: 20.99 GBP
- Previous price: 24.99 GBP
- Discount: 16%
- Price checked: 2026-11-14T10:07:38.425Z
- Rating: 4.9 / 5
- Reviews: 18

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Four selectable modes, with silent, low-sound and maximum-output settings described in the listing.
- Listing claims ultrasonic waves and electromagnetic pulses, with an ultrasonic frequency range of 20–65kHz.
- The listed coverage is up to 1,200 sq. ft. \(111 m²\) per unit. The listing recommends placing one unit in each room.
- The LED colour indicates the selected mode: blue for silent, yellow for low sound and red for maximum output.

## Pros

- Four units can be placed in separate rooms, matching the listing's recommendation to use one per room.
- A silent mode is offered for quieter use, alongside low-sound and maximum-output settings.
- The stated coverage is given per unit, which helps buyers plan placement room by room.

## Specifications

### Identity
- Brand: Gecool
- Model: A-MT09-B
### Operation and coverage
- Modes: 4 modes
- Ultrasonic frequency: 20–65kHz
- Coverage per unit: 1,200 sq. ft. \(111 m²\)
### Dimensions and installation
- Dimensions listed: 25.4 x 25.4 x 25.4 centimetres
- Plug: UK Plug

## Before you buy

- The listing describes continuous use and says pest activity may initially increase during the first 1–2 weeks, with a claimed reduction by weeks 3 to 4. These are seller guidance and expected results, not independently verified outcomes.
- The listing calls the product pet-safe and describes its materials as flame-retardant ABS, but provides no supporting test details. Buyers who need verified safety information should confirm suitability for their household and pets.

## A good fit for

- Households wanting four plug-in units to place in separate rooms.
- Buyers who want mode choices, including a silent setting for quieter use.
- People considering an ultrasonic repeller as an additional household pest-control measure, rather than relying on a guaranteed result.

## Less suited to

- Buyers requiring independently verified pest-control performance or confirmed safety testing.
- People seeking a single device with independently established whole-home coverage.

## Customer feedback

There is no customer-comment summary in the supplied evidence. The aggregate ratings are strongly positive within a small sample, but they do not reveal what buyers liked, whether performance was consistent, or how the units worked in particular rooms. Treat them as limited rating context rather than evidence that the claimed coverage or pest-control results are established.

## Frequently asked questions

### How many units are included?
The product title describes a four-pack. The listing gives coverage per unit and recommends using one in each room.
### What modes does it offer?
The listing describes four modes, including silent, low-sound and maximum-output settings. It does not explain the fourth mode in the supplied details.
### What coverage does the listing claim?
Up to 1,200 sq. ft. \(111 m²\) per unit. This is a listing claim, not independently verified coverage.
### How quickly should it work?
The listing says activity may increase during the first 1–2 weeks and claims reduction by weeks 3 to 4. It recommends leaving the units plugged in continuously, but does not establish a guaranteed result.

## Alternative options

- [4 Pack Ultrasonic Pest Repeller Plug In, Repel Mice Rats Mosquito Spider \| Repel Mice Rats Cockroaches Ants, for Home Flat Garage Office, Pest Rodent Control, Safe for Pets Children](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [2026 Upgraded Ultrasonic Pest Repeller 6 Pack, Electronic Mouse Repellent, Electronic Repellent Plug in Pest Control for Mice, Cockroaches, Ants, Fly, Mosquitoes, Rodent, Harmless to Pets and Human](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [REPELIX ARMOUR Indoor Ultrasonic Pest Repeller – Pack of 2 – Covers 140m² per Device – 3 Modes – Repels Mice, Rats, Spiders, Mosquitoes, Ants, Bugs & Flies - Black Matte](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [Bloconix Ultrasonic Pest Repeller, Plug In Mouse Repellent \| 360° Rodent Repellent Ultrasonic with 4 Modes & 9 LED Lights, Mice Repellent for Mice & Rats in Lofts, Garages & Kitchens](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [Siyuio Advanced 6‑Pack Ultrasonic Pest Repeller – 4 Modes, UK Plug‑in, Dual‑Wave Defence Against Mice, Rats, Spiders, Cockroaches, Mosquitoes, Ants & Flies](https://bargainpostbox.co.uk/visit/siyuio-mt09-six-pack-ultrasonic-pest-repeller)
- [Merwlukt Ultrasonic Pest Repeller, Mosquito Repellent Plug In Rat Repellent for Mouse, Mosquitos, Rodent, Spiders, Flea, Bugs, Fly, Cockroach, Ants etc, 4 Pack](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [4 Pack Ultrasonic Pest Repeller Plug In, Mouse Mice Rodent Rat Repellent \| Repel Mice Rats Mosquito Spider Cockroaches, for Home Garage Attic, Pest Mouse Control, Safe for Pets Children](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [Solar Mole Repellent,4 Pack Ultrasonic Solar Power Animals Repeller,Mole Stopper Scare Vole for Lawn Garden & Yard Home -Groundhog Repeller Snake Rodent Gopher Chaser Pest Odstraszacz](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [2026 Ultrasonic Pest Repeller4 Pack,Mice Repellent,Insect Repellent Plug In \| Effective Against Mice, Rats, Mosquitoes, Cockroaches, Ants, Spiders, and More – Safe and Quite for Humans,Pets](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [2Pcs Gardens Cat Repellent, Ultrasonic Solar Cat Deterrents Fox Deterrents with PIR Motion Sensor & Flashing Light, Waterproof Wild Animal Scarer Repellent for Garden Yard, Dog, Fox, Bird](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [NIUBDHQ Upgraded Ultrasonic Pest Repeller, 6 Pack Ultrasonic Pest Repellent \| 3-Speed Mode, Powerful Mouse Repeller plug in Pest Control for Mice/Rodent/Bugs/Mosquito/Spider, Safe for Humans &Pets](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)
- [Ultrasonic Pest Repeller for Indoor Use, Mice Repellent Plug In UK, 2 Pack \| 22-65 kHz, 3-5W, 800-1,200 sq ft open-area coverage; for rats, spiders, ants, cockroaches, mosquitoes & flies](https://bargainpostbox.co.uk/visit/gecool-a-mt09-b-four-pack-ultrasonic-pest-repellers)

## Images

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 1](https://bargainpostbox.co.uk/i/wgTsvOUhyfEzzUUuM99uIc0dxDRMdL1MIqLPTvRwTO8vefw7z5bYD3aIHZuDUQgr10BJcxPh0gHDEWW_Ze1D1Fg2Kc3BBupS1rokF284UkH7vkcEiqm3nwtA.jpg)

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 2](https://bargainpostbox.co.uk/i/_9gM__HBW40IBhdgK-tFTAlw8M1DG5kj1Lvo2LDAiCV16FDWjbPd4syV4QG4LOVXuMIc-Q1SxD5oFZGXtYip1lW07FuG5PB8WT1zuNkafwxoNLs6pCzxSdT9.jpg)

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 3](https://bargainpostbox.co.uk/i/iKbHY_zOqpWMrdv_tcfaLLZ2vn83A0g1--9lhlwbbnjSluByvtxU1jCanCweKAO8zKD5mDc_Ba7SFAj9VaY7DIBTs5t68SfF6L-cszASuURYgWw7e7AikROT.jpg)

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 4](https://bargainpostbox.co.uk/i/7uTRobShw9fSh4yRh9zSnNdkH8vDYTao5g_7fea04-8C1VqnX9ibUHnC8VgZKGHrIFha47EDi-eMaXaM5ekjbhBqbzkEX4wv2EgVA7JXqIy4LjhgMNkdhvdO.jpg)

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 5](https://bargainpostbox.co.uk/i/HPnjwLk_yzT--HIVTwuRhtu6ZKf90WKy5O_gGmCRG3UyfPXh89ClqE52WC83bDsmJK7SjirS44jYMpeTFvPXjBZcwAHRcgQBFtAaa07T08kJYJGOVizlMfu0.jpg)

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 6](https://bargainpostbox.co.uk/i/4Asp_SIVfy3_aSAu7GVD3IfwUQf6i_Hr-Ij2GEynmyUMRFcYJJZ50A191rOZxYmn9QD2cGd9Z2Imenvyij39MPZ--YYxUhBmaYOBzYpyfvSWN0dLWIz71kRZ.jpg)

![Gecool A-MT09-B 4-Pack Ultrasonic Pest Repellers, 4 Modes — 7](https://bargainpostbox.co.uk/i/RmAnJMk6ivOirji6agVZ9Gu2JoS_Aj44n0yW0HCoJuWSyog4Zq6CIu5MPWuSlAhgXtek0MhmF1SQLeQaU47PEY3OwMAc93035lipZBVM9WJcfkpAx7KcUNd7.jpg)