The Waterproof NJ12 Mechanical Password Lock for Outer Gate represents a breakthrough in outdoor security technology, combining reliable mechanical operation with exceptional weather resistance.
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| Brand | Foachi |
| Model | NJ12 |
| Color | Silver |
| Door Type | Outer door Iron Gate |
| Certification | CE, ROSH, |
| Waterproof / Fireproof | Yes |
| Suitable for Mortise | |
| Lock Dimension | 107(H)*43(W)*20(T)MM |
| Material | Zinc Alloy and Iron |
| Working Temperature | -20~70℃ |
| Working Humidity | 20%~93% |
| Door Thickness | 35~65mm |
| Test | 250K Cycle Times; 120 Hours Salt-spray |
| User Capacity | Password:1 |
| Unlocking Way | Password |
| Service | OEM / ODM |
This innovative lock eliminates the need for keys or batteries, providing a low-maintenance security solution specifically designed for exterior applications. Its robust construction and advanced password protection system make it ideal for securing outer gates, garden entrances, and other outdoor access points where exposure to the elements would compromise traditional locks. The NJ12 offers the perfect blend of convenience and security, allowing authorized access through a customizable code while keeping unauthorized individuals at bay.

At the core of the NJ12's design is its IP65 Waterproof Rating, which provides comprehensive protection against both solid particles and liquid ingress. The first digit "6" in the IP rating indicates complete protection against dust and other solid contaminants, while the second digit "5" ensures resistance to water jets from any direction. This level of protection ensures reliable operation even in heavy rain, snow, and humid conditions that would render standard mechanical locks inoperable over time.
Unlike electronic locks that rely on batteries or power sources, the NJ12 operates entirely through precision mechanical components. This battery-free design eliminates the risk of lockouts due to dead batteries and reduces long-term maintenance requirements. The mechanical system is engineered to withstand 10,000+ operation cycles without performance degradation, ensuring years of reliable service in outdoor environments.
The lock features a 4-6 digit customizable password system that supports over 10,000 unique combinations, providing a high level of security against unauthorized access attempts. The password can be easily changed by authorized users without requiring special tools or technical expertise. An automatic "code scrambling" feature resets the keypad after each use, preventing onlookers from identifying the code through fingerprint patterns or keypad wear.
The NJ12's housing is constructed from reinforced zinc alloy with a specialized anti-corrosion coating that withstands exposure to UV radiation, temperature extremes, and chemical contaminants commonly found in outdoor environments. All internal components are protected by multiple sealing layers that maintain the lock's integrity even in harsh weather conditions. The keypad features large, easy-to-operate buttons with tactile feedback that can be used reliably even with gloves.
The Waterproof NJ12 Mechanical Password Lock is specifically engineered for outdoor access control applications where weather resistance and reliability are essential. It excels as a security solution for residential outer gates, providing convenient keyless access to gardens, yards, and driveways. The lock is equally suitable for securing community entrance gates, parking area barriers, and storage facility access points where multiple authorized users require entry. Its weather-resistant design makes it ideal for installation in diverse climatic conditions, from rainy coastal areas to regions with extreme temperature variations. The NJ12 is compatible with most standard gate materials including metal, wood, and composite materials commonly used in outdoor structures.
An IP65 rating means the NJ12 is completely protected against dust ingress and can withstand low-pressure water jets from any direction without compromising functionality. This makes it suitable for use in all weather conditions, including heavy rain and snow, but it is not designed to be submerged in water for extended periods.
The NJ12 supports a single customizable password that can be shared among authorized users. For applications requiring multiple unique codes, we recommend our multi-user models. The master password can be changed as often as needed, allowing for convenient access management when users change.
No, changing the password is designed to be simple and straightforward. The process takes less than a minute and requires no special tools—simply follow the step-by-step instructions provided with the lock. We recommend changing the password periodically for enhanced security.
The NJ12 features a temporary lockout mechanism that activates after 5 consecutive incorrect password attempts, preventing brute force attack attempts. The lock automatically resets after a 3-minute timeout period, after which normal operation resumes.
The NJ12 is engineered to operate reliably in a wide temperature range from -20°C to 70°C (-4°F to 158°F), making it suitable for use in most climate zones. The mechanical components are designed to maintain their functionality in both freezing conditions and high-temperature environments, ensuring year-round security performance.
