Parking surveillance lets a compatible 70Mai Dash Cam continue monitoring the vehicle after the engine is switched off. Depending on the dash cam model, it may respond to impacts, monitor selected movement, or use time-lapse recording while parked.
[note] Parking surveillance features, menu names, recording behavior, and required accessories vary between 70Mai Dash Cam models. [/note] [reference] Title: Collision Detection Text: Uses the dash cam's G-sensor to detect an impact or unusual vibration while the vehicle is parked. Title: Motion Detection Text: Available on selected models and may use image analysis to identify relevant movement or suspicious activity. Title: Time-Lapse Recording Text: Available on selected models and records parking activity at a reduced frame rate to save storage space. Title: Parking Power Text: Parking surveillance commonly requires a compatible hardwire kit or another supported parking-power solution. [/reference]How Parking Surveillance Works
When the vehicle is parked, supported models can change from normal driving recording to a parking-surveillance state. The exact behavior depends on the selected mode.
- Impact-based monitoring normally waits for the G-sensor to detect a sufficiently strong vibration or collision.
- Motion monitoring, when supported, evaluates activity in the camera's field of view and records when the model considers an event relevant.
- Time-lapse mode, when supported, records at a reduced frame rate instead of remaining completely idle.
- After an event, the recording may be stored separately from ordinary driving footage, depending on the model.
Event-triggered monitoring reduces unnecessary footage compared with full-quality continuous recording, while time-lapse provides more continuous context at the cost of additional power and storage use.
Parking Modes
Impact Detection
The G-sensor measures changes in acceleration. A strong enough impact can wake the dash cam or trigger a parking recording.
This can be useful for situations such as:
- A vehicle contacting yours while entering or leaving a parking space.
- A hit-and-run while the vehicle is unattended.
- A strong bump, kick, or other physical impact to the vehicle.
- Some door impacts or minor parking contacts when sensitivity is high enough.
Motion Detection
Some 70Mai models include motion-based parking surveillance. The implementation varies by model: newer systems may analyze the scene and decide whether nearby activity is significant rather than simply reacting to every visual change.
Motion-triggered recording may help capture:
- People remaining close to the vehicle.
- Suspicious activity near the front of the car.
- Movement in garages or confined parking areas.
Passing vehicles, reflections, changing light, distance, installation angle, and environmental conditions can affect detection behavior.
Time-Lapse Recording
Selected models can record parking activity at a reduced frame rate. This provides broader coverage of the parking period while using less storage than normal full-frame-rate recording.
- Useful when continuous context is more important than event-only recording.
- Consumes more power and storage than a standby mode that records only after an event.
- Fast movement may contain less detail than ordinary driving footage because fewer frames are recorded.
Parking Power
Parking surveillance needs power after the vehicle is switched off. Many 70Mai models require a compatible parking-surveillance cable or hardwire kit so the dash cam can detect the ignition state and enter parking mode correctly.
Hardwire Kit
A compatible hardwire kit typically connects to constant power, ignition or ACC sensing, and ground. This allows supported dash cams to recognize when the vehicle is turned off and change into parking surveillance automatically.
Compatible kits may also include low-voltage protection that disconnects the dash cam when vehicle-battery voltage falls below the selected protection level.
[warning] Parking surveillance draws power while the vehicle is off. Use a compatible power solution with appropriate battery protection, especially for overnight or extended parking. [/warning]Always-On 12V Socket
Some vehicles keep the 12V accessory socket powered after the engine is switched off. This can keep a dash cam powered, but it should not be assumed to provide the same parking-mode control as a compatible hardwire solution.
- Some dash cams need an ACC signal or supported parking cable before parking features become available.
- An always-powered socket without battery protection can continue drawing from the vehicle battery.
- Behavior varies by vehicle and dash cam model.
External Dash Cam Battery
A compatible external battery pack can provide another parking-power option. It charges while the vehicle is running and can power the dash cam after the engine is switched off.
This can reduce reliance on the vehicle's main battery and can be useful when the car remains parked for longer periods.
Enable Parking Surveillance
The exact controls differ by model. Look for settings related to parking surveillance, parking guard, collision detection, motion detection, or time-lapse recording.
[checklist] * Compatible parking-surveillance feature is available on the dash cam * Required hardwire kit or supported parking-power solution is connected * Memory card is installed and ready for recording * Parking surveillance is enabled in the dash cam or 70Mai app settings * Camera position and windshield area provide a clear forward view [/checklist]From the Dash Cam
[step] 1. Open the dash cam settings. 2. Find the parking surveillance or equivalent parking-mode setting. 3. Enable parking surveillance. 4. Select the available parking functions, such as collision detection, motion detection, or time-lapse recording. 5. Adjust sensitivity or other parking settings only if the model provides those controls. 6. After switching off the vehicle, check that the dash cam changes into its intended parking state rather than simply losing power. [/step]From the 70Mai App
Models with app control can expose parking settings through the 70Mai app when the phone is connected to the dash cam.
[step] 1. Power on the dash cam and enable its Wi-Fi connection if required. 2. Connect the phone to the dash cam. 3. Open the 70Mai app and select the connected dash cam. 4. Open the device settings. 5. Find the available parking-surveillance controls. 6. Enable the required mode and adjust supported sensitivity or recording options. [/step]Available controls can differ significantly between models. A setting described for one 70Mai Dash Cam should not be assumed to exist on every model.
Detection Sensitivity
G-Sensor Sensitivity
If the model provides parking collision sensitivity, the setting changes how easily vibration triggers a recording.
[compare] High Sensitivity | More responsive to smaller vibrations, but may create more recordings from door closing, nearby movement, or other non-damaging vibration. Medium Sensitivity | A practical starting point when you want a balance between event detection and unnecessary triggers. Low Sensitivity | Requires a stronger impact and may reduce unwanted recordings, but smaller contacts can be missed. [/compare] [tip] Start with a middle sensitivity level when available, review the parking events from your normal parking environment, then adjust only if recordings are consistently too frequent or meaningful impacts appear to be missed. [/tip]Motion Sensitivity
On models that support adjustable motion detection, a higher setting generally makes the system more responsive to nearby activity. In busy parking areas, a lower or medium setting may reduce unnecessary recordings. A more sensitive setting may be useful in quieter areas where unrelated movement is uncommon.
If the dash cam records many events with no useful activity visible, consider reducing the relevant sensitivity setting if your model provides one.
Parking Clips and Storage
Parking recordings may be separated from normal loop recordings in the dash cam's album or storage structure. Collision or other important clips may also be locked or placed in a dedicated event area on supported models.
- Normal loop footage is generally recycled as storage fills.
- Protected or event recordings may be retained separately, depending on the model.
- Storage is still finite, so important clips should not be left only on the memory card indefinitely.
Review Parking Events
[step] 1. Power the dash cam normally. 2. Connect to the dash cam through the 70Mai app when required. 3. Open the album, gallery, or recording list. 4. Look for parking, event, emergency, or similarly marked recordings. 5. Check the time and recording around the event. 6. Save important clips to another storage location before normal recording eventually reuses card space. [/step]When reviewing an event, check what caused the trigger, whether damage or suspicious activity is visible, and whether nearby recordings provide useful context before or after the event.
Battery Protection and Parking Time
The practical surveillance time depends on the dash cam, enabled parking functions, power accessory, vehicle battery condition, temperature, and how often recordings are triggered.
- Short parking periods place less demand on the power source.
- Overnight monitoring is better suited to a compatible hardwire solution with low-voltage protection or a dedicated dash cam battery.
- For multi-day parking, use conservative parking settings and a power solution intended for extended surveillance rather than assuming the vehicle battery can supply the dash cam indefinitely.
If a compatible hardwire kit provides selectable voltage protection or parking duration controls, choose settings appropriate for the vehicle and accessory.
[dosdonts] Do: Use battery protection when parking surveillance relies on the vehicle battery. Do: Review the enabled parking modes if the car will remain parked for a long period. Do: Consider event-only monitoring when lower power consumption is more important than continuous parking footage. Dont: Assume every always-on accessory socket provides proper parking-mode control. Dont: Leave important evidence only on the memory card after an incident. Dont: Disable battery protection simply to extend recording time without considering the vehicle battery. [/dosdonts]What Parking Surveillance Can Capture
Parking Collisions
If another vehicle contacts your car strongly enough to trigger the G-sensor, parking surveillance may record the event. The footage can provide the direction of travel, surrounding activity, time information, and possibly a readable license plate when visibility and camera angle allow.
Door Dings and Minor Bumps
Smaller impacts may be recorded when they exceed the selected sensor threshold. Sensitivity that is too low can miss minor contact, while very high sensitivity can create recordings from harmless vibration.
Suspicious Activity
Models with supported motion detection may capture people remaining close to the vehicle, approaching it, touching it, or engaging in other activity within the camera's monitored area.
Coverage and Limitations
Camera View
A front-facing dash cam mainly records what is visible through the front windshield. Side or rear incidents can occur outside that field of view unless the installed model and camera configuration provide additional coverage.
When practical, park with the most useful area—such as an access lane or garage entrance—within the camera's view.
Low Light
Very dark parking areas can reduce visible detail. Glare, reflections, strong backlighting, a dirty windshield, or a dirty lens can also make people, vehicles, and license plates harder to see.
- Choose reasonably even lighting when possible.
- Avoid positioning the vehicle where a strong light shines directly into the lens.
- Keep the windshield and camera lens clean.
Detection Limits
Parking surveillance does not guarantee that every incident will be captured. An event can occur outside the camera view, be too small to cross the impact threshold, or be difficult for motion detection to identify because of distance, lighting, reflections, or other environmental conditions.
Privacy
Parking recordings can include people and activity in public or shared spaces. Use the feature for vehicle monitoring and incident evidence, and handle identifiable footage responsibly.