Automatic combination lock opener — systematically scans every combination, detects when the lock opens, reports the result. Mount. Press start. Wait.
AutoDialer V4 automatically scans every possible combination on a mechanical dial lock — fast, precise, 100% success rate. No special skills required.



Systematically scans 8,000 combinations (step 5) or 64,000 combinations (step 2.5). Press START and wait — the machine dials, tests, and detects when the lock opens. Zero intervention required.
industrial stepper motor paired with industrial-grade stepper driver — high torque, smooth operation, zero vibration. Passive heatsink design runs continuously 12+ hours without overheating.
12-bit magnetic encoder with 0.09° resolution. Precisely tracks dial position and automatically detects when the lever drops — stops immediately, displays the winning combination.
Industrial touchscreen shows current combination being tested, real-time progress bar, and event log. One-touch START/STOP. No laptop, phone, or external connection needed.
Stable 24V DC power, no lithium battery. industrial driver with aluminum heatsink, motor running at 30% of max capacity. Every unit burn-in tested for 24 hours before shipping.
No Wi-Fi, Bluetooth, SIM or lithium battery. No air freight restrictions worldwide.
Not a lab prototype — AutoDialer V4 was shaped by thousands of hours in the field, solving the exact problems locksmiths face on job sites.
Saves the last 3 numbers to memory every minute. After power loss — plug in, set S1 to the saved number, press RUN. The display always shows chip temperature, elapsed time, and combos scanned.
FAST — new safes with tight mechanisms, maximum speed. NORMAL — standard safes, balanced speed and reliability. SLOW — old safes with loose levers, slower rotation so the sensor accurately catches when the lever drops. Select on screen before running.
Full support for RIGHT 5, LEFT 5, RIGHT 2.5, LEFT 2.5. Right-spin or left-spin dials — both covered. Step 5 for speed, step 2.5 for maximum precision. Every scenario handled.
The t5 corner auto-rotates every 5 seconds: scan direction + chip temperature — elapsed time + combos scanned — current combination being tested. Full progress monitoring at a glance.
The magnetic encoder continuously monitors dial rotation. When the lever drops and the lock opens, the rotation pattern changes — the machine detects it instantly, stops, and displays all 3 combination numbers on screen.
Stable 24V DC power, motor at 30% capacity, solid aluminum heatsink on the driver. Operating temperature 40–45°C. Designed for 12+ hours continuous operation — start the machine, go handle another job, come back for the result.
AutoDialer V4 scans in three progressive stages — from fast initial sweep to maximum precision. Most safes open during the early stages, with only the most challenging combinations requiring a full sweep.
The machine starts with 47 manufacturer default combinations (~3 minutes), then proceeds with the Step-5 sweep (8,000 combinations). Most safes — including those set with non-standard combinations — will open during this initial phase, in approximately one hour.
| Mode | First hour (75% safes) | Most safes within | Best for |
|---|---|---|---|
| Slow | ~1.0 hr | ~9 hours | Old safes with loose levers. Maximum sensor accuracy when the lever drops. |
| NormalRECOMMENDED | ~0.9 hr | ~8 hours | Standard safes. Balanced speed and reliability. Active by default at START. |
| Fast | ~0.8 hr | ~7 hours | New safes with tight mechanisms. Demonstrations, training, quick results. |
The opening times shown above are estimates based on internal testing of three-wheel mechanical combination locks in normal working order, with the manufacturer-specified power supply (24 VDC, 5 A) and recommended mounting procedure. Actual times will vary depending on the lock manufacturer, model, internal tolerances, mechanical condition, dial alignment accuracy, and ambient conditions.
AutoDialer V4 is capable of opening safes set with non-standard combinations — including codes set within the contact area of the wheels. Because the machine scans virtually the entire combination range, opening time on such safes may be slightly longer than typical — but the success rate is preserved.
Some safes — particularly those with non-standard wheel patterns, high-end Group 2 locks, anti-manipulation features, or significant internal wear — may require longer scanning times. Locks with electronic components, time-locks, dual-key mechanisms, or relockers are outside the scope of AutoDialer V4 and are not supported.
The "100% success rate" applies to standard three-wheel mechanical dial locks within the supported range. AutoDialer V4 is sold for legitimate use by safe owners, locksmiths, and authorized technicians. The manufacturer assumes no liability for misuse or for damages resulting from operation outside published specifications.




Confidently take on any safe job, even on remote calls. Mount, press start, wait for results.
Ordering 2+ units? Contact us for volume pricing.
AutoDialer V4 has been in active use for 5 years in the Vietnamese market, successfully opening every type of mechanical dial safe — left-spin, right-spin, including anti-manipulation locks. It works on a systematic brute force principle: scanning every possible combination including numbers within the contact area — so it always finds the right one.
However: The machine was developed and thoroughly tested in Vietnam on lock models common in this region. For lock models in other countries, we do not guarantee compatibility with every brand or configuration. Please research your specific lock model before ordering.
Includes a detailed English user manual with step-by-step illustrations. The machine is designed to be simple: mount it, select direction, press start. If you know how a mechanical combination dial works, you will know how to use this machine.
Honesty comes first. We sell exactly what the machine can do — nothing more, nothing less.
Prepayment required. Full payment before shipping — bank transfer or cryptocurrency. No exceptions.
Shipping: DHL/FedEx Express, 5–7 business days worldwide. Professional shock-proof packaging. No lithium battery, no Wi-Fi — no air freight restrictions. Tracking number provided immediately after dispatch.
Customs & import duties: Buyer is 100% responsible for all customs fees, import taxes, and duties in their country. We cannot predict or control customs processing. Package is declared as "Precision Motor Controller — electronic test equipment."
Customs seizure / delay: Once the package leaves Vietnam, all customs risk transfers to the buyer. If customs holds, delays, or seizes the package, no refund will be issued. We will provide all documentation needed for customs clearance upon request.
Lost / damaged in transit: If DHL/FedEx confirms the package is lost or damaged during shipping, we will work with the carrier to file a claim. Replacement or refund will be handled case-by-case after carrier investigation (typically 5–15 business days).
No returns. Due to the nature of this product, all sales are final. We do not accept returns or exchanges. Please research your lock model and confirm compatibility before ordering.
By placing an order, you agree to all terms above.
Every unit runs continuously for 24 hours on a real lock before shipping. Motor, driver, encoder, display — all verified. No dead-on-arrival, stable from day one.
Field-tested across hundreds of safe openings. Industrial-grade components built for continuous duty, average operating temperature just 40–45°C. 6-month hardware warranty with unlimited remote technical support.
DHL/FedEx express. No Wi-Fi, no lithium battery — no air freight restrictions anywhere. Professional shock-resistant packaging. Buyer responsible for import duties.
Optimized for Group 2 mechanical combination locks (S&G 6700 series and compatible). This is the most common lock type on commercial safes. Contact us for advice on your specific model.
Step 5 scans 8,000 combinations in ~50 minutes — approximately 70% of safes open during this phase. If not found, the machine automatically switches to step 2.5 (64,000 combinations, ~6-9 hours). Average opening time is approximately 2 hours. 100% success rate — the machine always opens.
AutoDialer V4 is optimized for Group 2 mechanical locks (S&G 6700 series and compatibles) — which have a gate margin of ±1. The 2.5 step is carefully chosen: 40% of combinations have offset ≤ 0.5 (extra margin), 60% have exactly 1.0 — still within the Group 2 lock margin even under mechanical noise (motor drift, backlash). In contrast, step 2.0 has 50% of combinations at exactly 1.0 (right at margin edge) — easily missed with minor noise. Step 2.5 offers better tolerance and is also faster (64,000 combinations instead of 125,000).
Average operating temperature is 40–45°C (104–113°F), never exceeding 55°C even during 12-hour continuous runs. Solid aluminum heatsink on the driver, motor running at 30% of max capacity. No auxiliary fan needed.
Field-proven across hundreds of safe openings. Industrial-grade components designed for continuous duty. Every unit is burn-in tested for 24 uninterrupted hours before shipping — stable from day one.
Made in Vietnam, sold directly by the developer — no dealers, no middlemen. Same operating principle, industrial-grade components, at a fraction of the cost. One investment, years of reliable service.
No. Mount the unit on the safe with the magnetic base, select dial direction, press START. Fully automatic from there. When the lock opens, the machine stops immediately and displays the combination on screen.
Prepayment via bank transfer or crypto. Worldwide DHL/FedEx express shipping in 5–7 days. No Wi-Fi, no lithium battery — no air freight restrictions. Shock-resistant packaging. Buyer responsible for import duties.
AutoDialer V4 unit (fully assembled), 24V power adapter (plug type varies by region), magnetic mounting base, quick start guide. Safe and custom mounting jig not included.
Send your details below or email directly. Response within 24 hours. Vietnamese & English support.