HENDUN Outdoor Gate & Pool Alarm 2-Pack — 140 dB IP67 Waterproof with Remote

HENDUN Pool Gate Alarm Outdoor is a weatherproof, two-unit gate and door alert system that emits a 140 dB alarm and includes remote control for quick arming and disarming.

Designed for outdoor gates, pool fences, sheds and other entry points, this HENDUN two-pack pairs a rugged alarm module with a magnetic sensor to detect unauthorized openings. Built with an IP67-rated enclosure and multiple mounting options, it focuses on loud, reliable notification rather than adjustable volume or smart home integration.

How loud is the alarm and when might that matter?

The alarm produces an unadjustable 140 dB siren intended to deter intruders and attract immediate attention. Because the sound level is extremely high, it’s best suited for outdoor installations where noise won’t disturb indoor occupants.

• 140 dB peak output—comparable to a thunderclap or jet takeoff at close range
• Non-dimmable volume—no built-in control to lower loudness
• Immediate, attention-grabbing alarm for open gates or doors

Is this unit suitable for outdoor and wet environments?

Yes — the alarm housing features IP67-rated protection that guards against dust and temporary submersion, making it appropriate for poolsides, patios, and exposed fences. The casing and rubberized seals help keep internal electronics safe from rain and splashes.

• IP67 waterproof rating—resists dust and short-term immersion
• Rubberized weather seals and durable PVC shell
• Made for exposed locations like gates, entrances, and sheds

How do you install and operate the HENDUN gate alarm?

Installation is flexible: the alarm and sensor can be attached with tape, cable ties, or screws depending on the surface. Operation is simple — you can set functions with the numeric keypad or use the included remote control without adding extra modules.

• Multiple mounting options: tape, tie, or screw
• On-device numeric keys for function setup (not password encoding)
• Remote control included for arming/disarming from a distance

What maintenance or power considerations should I know about?

The alarm runs on replaceable batteries and provides an audible low-battery signal to prompt replacement. The unit’s build prioritizes reliability, but it is not UL-listed, so check local safety requirements if certification is necessary for your installation.

• Low-battery alert: six beeps to indicate replacement needed
• Use fresh batteries for consistent 140 dB performance
• High-grade PVC body but not UL certified

Who is this for? This HENDUN outdoor gate alarm suits homeowners, pool owners and property managers who need a straightforward, high-decibel warning device for outdoor gates, pool fences, sheds and remote entrances. It’s ideal when you want a tough, weather-resistant alarm with easy installation and remote control, and when maximum audible deterrence is more important than adjustable volume or integrated smart features.