1. Introduction
Thank you for choosing the Riddost Safe Box 2.5 Cubic. This instruction manual provides essential information for the proper setup, operation, and maintenance of your new safe. Please read this manual thoroughly before using the product to ensure optimal security and functionality. Keep this manual for future reference.

Figure 1: Riddost Safe Box 2.5 Cubic with included fireproof document bag.
2. Product Features
- Durable Construction: Made from alloy steel and metal for enhanced security.
- Fireproof & Waterproof: Designed to protect contents from fire and water damage.
- Smart Alarm System: Activates a warning beep after three incorrect entries or significant vibration.
- Dual Locking Mechanism: Features an electronic keypad and an emergency key for access.
- Removable Shelf: Allows for flexible storage space organization.
- Mounting Options: Can be floor-mounted or wall-mounted for added security.

Figure 2: Electronic password panel with dual unlocking methods and low battery indicator.

Figure 3: Illustration of the safe's multi-layered protection against fire, rust, acid, and impact.
3. Setup
3.1 Unpacking and Initial Inspection
Carefully remove the safe from its packaging. Inspect the safe for any signs of damage. Ensure all accessories, including the instruction manual, emergency keys, and mounting hardware, are present.
3.2 Battery Installation
The electronic keypad requires batteries to operate. Open the safe using the emergency key (refer to Section 4.1). Locate the battery compartment on the inside of the door. Insert the required batteries (typically AA, not included) according to the polarity markings. Close the battery compartment cover.
Video 1: Demonstrates battery installation and initial setup of the safe's electronic lock. This video shows how to access the battery compartment and insert batteries, which is crucial for the electronic keypad's functionality.
3.3 Mounting the Safe
For enhanced security, it is recommended to mount the safe to a floor or wall. Use the provided mounting hardware. Pre-drilled holes are located on the back and bottom of the safe. Choose a secure location and follow these steps:
- Mark the desired drilling points on the wall or floor using the safe's pre-drilled holes as a template.
- Drill pilot holes at the marked locations.
- Align the safe with the drilled holes and secure it using the provided bolts and anchors.
- Ensure the safe is firmly attached and cannot be easily removed.

Figure 4: Wall mounting instructions for the safe.
4. Operating Instructions
4.1 Opening the Safe with Emergency Key
In case of forgotten password or dead batteries, the safe can be opened using the emergency key. Remove the cover plate on the electronic panel to reveal the emergency keyhole. Insert the emergency key and turn it while simultaneously turning the knob to open the door.

Figure 5: Emergency key and electronic password unlocking methods.
4.2 Setting/Changing the Master Code
The master code allows you to open the safe and reset personal codes. To set or change the master code:
- With the safe door open, press the '0' button twice on the keypad.
- Press the red reset button located on the inside of the door (refer to Figure 6). You will hear a double beep.
- Enter your new master code (4-8 digits) on the keypad.
- Press the '#' button to confirm. You will hear another double beep.

Figure 6: Location of the reset button.
4.3 Setting/Changing a Personal Code
A personal code can be set for daily use. To set or change a personal code:
- With the safe door open, press the red reset button once. You will hear a double beep.
- Enter your new personal code (4-8 digits) on the keypad.
- Press the '#' button to confirm. You will hear another double beep.
4.4 Locking the Safe
To lock the safe, simply close the door and turn the knob clockwise until it is securely locked. The electronic system will automatically engage.
Video 2: Provides a detailed demonstration of how to open the safe using the emergency key and how to set and reset both master and personal codes. It also shows the process of locking the safe.
5. Maintenance
- Cleaning: Wipe the exterior with a soft, damp cloth. Avoid abrasive cleaners or solvents.
- Battery Replacement: Replace batteries promptly when the low battery indicator lights up to avoid being locked out. Always use new, high-quality batteries.
- Key Storage: Store emergency keys in a secure location away from the safe and away from common hiding spots.
6. Troubleshooting
- Safe does not open with code:
- Ensure batteries are not depleted. Replace if necessary.
- Verify the code entered is correct. Try both master and personal codes.
- If the code is forgotten, use the emergency key to open the safe and reset the code.
- Door is hard to open/close:
- Check for any obstructions around the door frame or hinges.
- Ensure the safe is on a level surface.
- Apply a small amount of lubricant to the hinges if they are stiff.
- Alarm sounds unexpectedly:
- The alarm activates after three incorrect code entries or significant vibration.
- Enter the correct code to silence the alarm.
- Ensure the safe is placed in a stable location to prevent accidental vibration.
7. Specifications
| Feature | Detail |
|---|---|
| Item Weight | 35 pounds |
| Product Dimensions | 11.8"D x 12.2"W x 14.57"H |
| Size | 2.5 Cubic Feet |
| Material | Alloy Steel, Metal |
| Mounting Type | Floor Mount, Wall Mount |
| Special Feature | Alarm System, Fireproof |
| Water Resistance Level | Waterproof |
8. Warranty and Support
For warranty information or technical support, please refer to the contact details provided with your purchase documentation or visit the official Riddost website. Keep your purchase receipt as proof of purchase for any warranty claims.

