Mode 1 · TEST
High-energy pulse
Steady 65 kHz ultra-high-frequency output. For flying insects such as moths, gnats and fruit flies, for fleas and mites, and for a quick check that all speakers are working.
Indoor · High outputIn stock
SDH-051
Four-mode ultrasonic rodent and pest repeller with three speakers, an aluminum high-frequency transducer and 12 switchable LED strobe lights
SDH-051 combines three ultrasonic speakers and one ultra-high-frequency aluminum transducer with 12 high-power LED strobe lights, covering about 120 m² at 5 W or less. A rotary switch selects one of four modes, and a separate button turns the motion-triggered night strobe on or off in any mode.
- Modes
- TEST · ULTRA · TRANS · DUO
- Ultrasonic
- 3 speakers + 1 aluminum high-frequency transducer
- Frequency
- 65 kHz · 12–25 kHz cycle · 12–24.7 kHz sweep
- Strobe
- 12 LEDs, switchable, infrared motion-triggered at night
- Coverage
- About 120 m²
- Power
- ≤ 5 W · US / EU / UK plug
- From stockNo MOQ
- Your logo500 units
- Color & box2,000 units
- Lead time≈ 12 days
EPA Est. 97987-CHN-1 · Shenzhen HQ, own factory in Guangdong
Overview
Sound and light in one unit, with the strobe under your control.
SDH-051 surrounds the room with sound from three ultrasonic speakers and one ultra-high-frequency aluminum transducer, and adds 12 high-power LED strobe lights. An infrared sensor lets the strobe fire only when it detects movement at night; during the day it stays on standby. A single button on the back switches the strobe on or off, independently of the selected ultrasonic mode. It is aimed at mice and rats as well as cockroaches, spiders and ants.
Repelling is a gradual process, not an instant result. The manual says pest activity may rise for the first 1–2 weeks as pests leave their hiding places, and usually decreases after about 3–4 weeks of uninterrupted use. Sealing holes and storing food properly help the device work best.
Modes
Four modes on one rotary switch.
Mode 2 · ULTRA
Auto frequency
Cycles between 12 kHz and 25 kHz. The recommended everyday mode against house mice and field mice, and against cockroaches, spiders, ants and woodlice; it can be left on long-term.
Mode 3 · TRANS
Power sweep
Sweeps between 24.7 kHz and 12 kHz with higher output, for persistent rodent activity. Some young people may hear a faint tone, so use it in kitchens, garages or attics.
Mode 4 · DUO
Sweep plus strobe
Combines the TRANS sweep with the LED strobe system for night use in kitchens, dining areas and garages, when rodents and cockroaches are most active. Audible-noise note as for TRANS.
Specifications
Technical specifications
| Model | SDH-051 |
|---|---|
| Type | Ultrasonic rodent and pest repeller with LED strobe |
| Sound sources | 3 ultrasonic speakers + 1 ultra-high-frequency aluminum transducer |
| Frequency | TEST 65 kHz · ULTRA 12–25 kHz cycle · TRANS/DUO 12–24.7 kHz sweep |
| Modes | 4, selected by rotary switch |
| Strobe | 12 high-power LEDs, button on/off, infrared motion sensing at night |
| Power consumption | ≤ 5 W |
| Coverage | About 120 m² |
| Dimensions | 108 × 108 × 78 mm |
| Installation | 40–80 cm above the floor, facing entry points; not in damp or very hot places |
| Certifications | CE (LVD, EN IEC 60335-1 / EN 62233), FCC Part 15B SDoC, RoHS · EPA Est. 97987-CHN-1 |
| Plug | US / EU / UK — confirmed per order |
Wholesale & OEM
Order from stock, or put your brand on it.
From stock
No MOQ
About 3,000 units per model ready to ship, neutral packaging.
Your logo
500 units
Logo on the shell plus your own English manual.
Color & box
2,000 units
Custom shell color and printed color box.
Lead time
≈ 12 days
Production after sample and artwork approval.
FAQ
Questions buyers ask about SDH-051
Can people or pets hear it?
The modes run from 12 kHz to 65 kHz. The manual warns that in TRANS and DUO some young people, children or other people with sensitive hearing may hear faint high-frequency noise, so use those modes where people are not regularly present, such as kitchens or garages. Keep pet rodents such as hamsters and guinea pigs away from the operating area.
How much space does one unit cover?
About 120 m² in theory, enough for a typical living room, kitchen, storage area or single-level space. Large furniture such as sofas or cabinets in front of the unit blocks the sound, so keep the front clear.
Which plugs are available?
The plug-in version runs continuously at 5 W or less, with US, EU or UK plugs confirmed per order. Ask us if you need a rechargeable version for outdoor or temporary sites.
Which certifications does it have?
SDH-051 has a CE certificate under the Low Voltage Directive (EN IEC 60335-1, EN 62233) and an FCC Part 15 Subpart B Supplier's Declaration of Conformity, and it is RoHS compliant. Our establishment is registered with the U.S. EPA under Est. 97987-CHN-1.
How long before users see results?
Pest activity may increase for about 1–2 weeks as pests are driven out of hiding; this is normal. With continuous use, signs such as droppings, noise and gnaw marks usually drop after about 3–4 weeks. It is a long-term repellent and prevention device, not an instant solution.
How is it installed and controlled?
For rodents, face it toward wall corners, door gaps or pipe openings, 40–80 cm above the floor; for insects, place it near cabinets, bathroom corners or bins. Power it on (green light), turn the mode switch, and press the back button to turn the strobe on or off.
Related models
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