# Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes

Gecool ultrasonic pest repellers are sold as a four-pack, with four operating modes and a UK plug. The listing claims coverage of up to 1,200 sq. ft. \(111 m²\) per unit and recommends keeping them plugged in continuously. Treat the coverage and pest-deterrence claims as manufacturer statements, not independently verified results.

- [Original product page](https://bargainpostbox.co.uk/product/gecool-4-pack-ultrasonic-pest-repellers-4-modes)
- [View offer](https://bargainpostbox.co.uk/visit/gecool-4-pack-ultrasonic-pest-repellers-4-modes)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Gecool
- Category: Tools & Garden > Pest Control & Repellents
- Price: 21.24 GBP
- Previous price: 24.99 GBP
- Discount: 15%
- Price checked: 2026-11-13T05:55:51.540Z

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 modes include a silent setting and indicator colours for the active mode.
- The listing claims ultrasonic waves and electromagnetic pulses operate together across 20–65kHz.
- The stated coverage is per unit. The listing recommends one unit in each room for whole-home use.

## Pros

- Four operating modes provide a silent option and different output settings for daytime or when the home is empty.
- A UK plug and claimed plug-and-play operation avoid setup steps beyond choosing a socket and mode.
- The listing names several common household pests as targets.

## Specifications

### Coverage and operation
- Claimed coverage per unit: 1,200 sq. ft. \(111 m²\) per Unit
- Modes: 4 Modes
- Frequency range: 20–65kHz
- Operating guidance: Keep plugged in 24/7 for best results.
### Design and use
- Technology: Combines ultrasonic waves with electromagnetic pulses
- Power connection: UK plug
- Housing material: Flame‑retardant ABS housing
- Claimed target pests: Mice, Rats, Roaches, Spiders, Ants & Mosquitoes

## Before you buy

- The listing says activity may initially increase during weeks 1–2 as pests are flushed from hiding, with the sonic barrier expected to take effect by weeks 3–4. It recommends continuous operation. These are manufacturer expectations, not guaranteed results.
- Coverage and pest-deterrence performance are listing claims, not independently verified measurements. The listing does not provide test conditions for its coverage figure.

## A good fit for

- Households seeking a plug-in indoor deterrent with a silent mode and several output settings.
- Buyers planning room-by-room placement who can keep units plugged in continuously.

## Less suited to

- Anyone seeking a guaranteed pest-control outcome or a substitute for addressing an established infestation.
- Buyers who need confirmed coverage in their specific room layout or independently measured results.

## Frequently asked questions

### How many rooms can the pack cover?
The title says four-pack and the listing claims 1,200 sq. ft. \(111 m²\) per unit. It recommends placing one in each room for whole-home use, but actual coverage is not independently verified.
### Does it need to stay plugged in?
Yes. The listing recommends keeping the units plugged in 24/7 for best results.
### What should I expect after switching it on?
The listing says pest activity may rise during the first 1–2 weeks and should drop by weeks 3–4. This is a manufacturer expectation, not a guaranteed timeline.
### Is there a silent mode?
Yes. The listing describes blue as silent, yellow as low sound and red as maximum output. It presents blue as suitable for overnight use or homes with pets.

## Images

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 1](https://bargainpostbox.co.uk/i/cdfSLoDbJfrHhk78kVDdm_S0U3rLE-KAj-t1tCWZbRMK5vN7Cai6WzjoPq0LDHekhdNFC56itpD9wEPhngikemJ_ka7H2Pa12cAw5HxFxHBNCXeR8Lhs8vaV.jpg)

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 2](https://bargainpostbox.co.uk/i/iKbHY_zOqpWMrdv_tcfaLLZ2vn83A0g1--9lhlwbbnjSluByvtxU1jCanCweKAO8zKD5mDc_Ba7SFAj9VaY7DIBTs5t68SfF6L-cszASuURYgWw7e7AikROT.jpg)

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 3](https://bargainpostbox.co.uk/i/aHsJPrr45OdSDtZJOGQ8piU2j7rCF-LtlDXLbmzL2srI13-ew5Y9ipn8fO5uoC_MBNN7KC6g7-J_0oSmRvST6f6tdjP6fHYS3a-uOF7Ni4XpV0-r9JTghPw4.jpg)

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 4](https://bargainpostbox.co.uk/i/tMCndNmQTaAIY97UitC85c4Se2K6489d796-CT1Ipsj4eyVyqktSFe5Os2DTSpzxrXIRSZWZfeDB0w_M5pNJtHz8z_0uAu6xCR-uA_HkujOXCdYDQeeWCjYw.jpg)

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 5](https://bargainpostbox.co.uk/i/W7iieMsmfzrp1CHG8g4Eq7j1GGdVjp3-9uKSFbBziincr71KH647qRhv707ZCCfbtGS1oLOZa_gEHxgM19LkU2OG_A6jadMzLUiZQT1q0XAUd3IlRO-N0v1c.jpg)

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 6](https://bargainpostbox.co.uk/i/C3fm7aDLA5tRQcAdLMo2nqIP8FmTYB2AF_iLaLSi59yL7c8McQNIKnqwEteuUVUPJWhlJ9QJ_uCbOcZHB3Bm5pqs0Z0dhkKIb7yQOiZwmRO5ZNrpZSGBrNjh.jpg)

![Gecool 4-Pack Ultrasonic Pest Repellers, 4 Modes — 7](https://bargainpostbox.co.uk/i/7o6l60e_pzZw9wikYTZHnyrdRGjSyVlDapB-QviYmhorGvkCzLsLWUAd4netc-HgZqwcMtOaKueXQRsAMKB4-NWere9EbbxXWOdxlYLv6pv7tG5FDyOuWzIz.jpg)