HENDUN Outdoor Gate Alarm 140dB Two-Pack — IP67 Waterproof, Remote & Keypad

HENDUN's two-pack outdoor gate alarm emits a 140 dB siren, is rated IP67 waterproof, and includes remote and keypad operation for pool gates, fences, sheds, and other exterior doors.

Protect outdoor access points with an alarm designed for harsh conditions and easy setup. This HENDUN alarm pair combines a high-decibel siren with weatherproof construction so you can monitor gates and entrances near pools, patios, or yards. Each unit supports multiple mounting methods, remote activation, and straightforward keypad configuration—offering audible deterrence and simple alerts when a protected gate is opened.

How loud is the siren and where is it appropriate to use?

The built-in speaker reaches 140 dB, making it audible at long range and effective as a deterrent outdoors. Because the volume cannot be lowered, this device is intended primarily for exterior locations; use indoors only if you can tolerate very loud alarms.

• Peak output: 140 dB siren—comparable to heavy machinery noise.
• Best for outdoor gates, pool enclosures, yards, and storage areas.
• Not recommended for small enclosed indoor rooms due to fixed volume.

Is the alarm weatherproof and suitable for outdoor installation?

This alarm carries an IP67 ingress rating, protecting it from dust and from temporary immersion in water—making it resilient against rain, splashes, and most outdoor conditions. The housing uses durable PVC and a rubberized seal to reduce water intrusion; still, avoid prolonged submersion beyond manufacturer guidance.

• IP67-rated enclosure for dust-tight and water-resistance up to short immersion.
• Rubberized seals and robust PVC casing for extended outdoor use.
• Designed for poolside, gate posts, fences, and outdoor entryways.

How do I install and operate the alarm system?

Mounting is flexible: choose adhesive tape, zip ties, or screws depending on the surface. The unit can be armed and managed with the included remote or via the onboard numeric keypad; keypad keys configure functions rather than act as password digits, keeping setup simple.

• Multiple mounting options: tape, cable ties, or screw fastenings.
• Control methods: wireless remote plus local numeric keypad for settings.
• No separate bypass module needed for basic operations.

What maintenance and alerts should I expect?

The alarm signals when battery power is running low: you will hear six continuous beeps indicating it’s time to replace batteries. Regularly check seals and battery levels to ensure uninterrupted protection, and replace batteries promptly when the low-battery warning sounds.

• Low-battery alert: six continuous beeps to prompt battery replacement.
• Periodic inspection recommended for seals, mounts, and remote batteries.
• Built with quality materials but not UL-listed—follow installation best practices.

Who this is for: Homeowners and property managers who need a loud, weather-resistant alarm for exterior gates, pool enclosures, and outdoor storage areas will appreciate this HENDUN two-pack. It's suited to situations where a strong audible deterrent and flexible mounting are more important than adjustable volume, and where users want simple remote and keypad control without complex wiring.