Note: Product visuals are presented for illustrative purposes only and may vary slightly in colour, finish, proportions, and final installed appearance. For the most realistic representation, please refer to our Customer Gallery featuring actual installation photos.
适用于组屋和公寓邮箱的无电池信箱锁
用我们的电子信箱锁替换您组屋的信箱锁吧！这款无需电池和钥匙的信箱锁专为组屋、预购组屋、转售组屋和公寓信箱量身打造。它免去了更换电池和携带钥匙的麻烦，为您提供了一种便捷可靠的邮件安全保障方式。
这款信箱锁采用优质锌合金制成，经久耐用，安全可靠。其便捷的三位密码锁让您轻松开启，同时保持了时尚现代的设计。这款智能信箱锁是都市生活的理想之选，尤其适合新加坡居民，既能满足他们对低维护成本和安全性的需求。
这款售价仅为 80 美元的电子密码锁价格实惠，是您家居安全升级的简单之选。无论您是为组屋还是公寓的信箱加固，这款高品质的信箱锁都能为您带来安心和便利。
Real installation photos from our customers.
| Product Type | Keyless Combination Cam Lock (battery-free letterbox lock) |
|---|---|
| Unlocking Method | 3-digit mechanical combination code (0-9 per digit) |
| Material | Zinc alloy |
| Colour | Midnight Black, Mercury Silver |
| Dial Size | 42mm x 42mm (combination dial face) |
| Mounting Hole Diameter | 19mm (cutout approx. 15.8mm x 16.3mm) |
| Cam/Lever Dimensions | Cam length: 45mm, width: 16mm; thread length: 20mm; thread diameter: 23mm |
| Overall Dimensions | Diameter: 38mm; height: 44mm (17mm below mounting surface, 23mm above) |
| Rotation | 90 degrees between Open and Close positions |
| Suitable For | HDB, BTO, resale flat, and condo letterbox/mailbox doors |
Frequently Asked Questions
Have questions? We're here to help you.
Whether you need a letterbox lock for an HDB flat or a digital lock for letterbox in a condo, our design delivers low-maintenance, high-security performance. Say goodbye to keys, batteries, and bulky hardware—upgrade today for seamless mail protection.
The lock ships with a default code of 0-0-0.
- Ensure the lock is open (default code is 0-0-0).
- Find the pin hole on the side of the front lock turntable.
- Insert a pointed tool (e.g., SIM-tray pin) into the hole and hold.
- If it does not give, turn the knob slightly and retry.
- While holding, set your new 3-digit code and release to confirm.
Yes—our dimensions match standard HDB mailbox lock cutouts.
We recommend our $80 installation package for perfect alignment and warranty coverage.
No—being battery-free and fully mechanical, it only needs occasional cleaning for optimal performance.
Being a battery-free letterbox lock, we do not need any batteries to be used. Saves your hassle and your time.