Always-On Video Plus Two-Way Audio: How to Spec a Solar 4G Camera That Never Sleeps

The short answer: an AOV camera, a kiosk-mode display, and two-way audio confirmed per SKU

If you need a camera whose live view never goes to sleep, shown on a screen that never times out, with talk-back to the site, you are specifying three separate things — and only one of them is a camera feature. The camera has to be AOV (Always-On Video): continuous 24/7 recording at low standby power using AI scene analysis, rather than PIR wake-on-motion, which drops the feed between triggers and makes any wall-mounted display look frozen or black. The "no timeout" part of the display is solved on the viewing device, not in the camera — a tablet or monitor with OS screen sleep disabled and the viewer app locked to the foreground. Two-way communication is a per-SKU hardware feature (speaker plus microphone) that has to be confirmed model by model before the purchase order. For a solar 4G deployment, the sensible starting point in our catalogue is the SG-D42G-15F66-V1 — 2K dual lens, 20000mAh battery, 15W panel, IP66 — because a feed that stays live all day draws considerably more out of the battery than event-only recording does.

AOV, to be clear, is an industry-generic term, not a SolaGuard trademark. Any factory can build an always-on camera. What matters commercially is whether the battery and panel behind it are sized for that duty cycle, and whether the audio hardware is actually on the SKU you are quoting.

Why "always on" is two specifications, not one

Camera side: AOV versus PIR

A PIR-triggered camera is asleep by default. It wakes on a heat-and-motion event, records a clip, and goes back to standby. That is excellent for battery life and terrible for a monitoring wall: slow movement, a person who enters outside the sensor's cone, and anything happening beyond the PIR's effective range simply never appear. Operators watching a PIR camera on a permanent display see a still frame most of the day and learn to ignore the screen entirely.

AOV cameras keep the imaging pipeline running continuously and use on-device scene analysis to hold standby power down between events. That is what makes a genuinely live wall display possible. The trade-off is energy, which is why the panel and battery pairing in the table below is the single most important line item in your quote.

Display side: the timeout lives in the operating system

Buyers frequently open a ticket asking for a camera "without timeout option" when the camera is fine and the screen is the problem. No camera can override a display device's power management. In a guardhouse, site office or dispatch room, the fix is on the viewer:

• Disable screen sleep and auto-lock in the tablet or PC power settings, and keep the device on mains power rather than its own battery.
• Lock the viewer app to the foreground — Android's screen pinning, iPadOS Guided Access, or a dedicated kiosk launcher — so a notification cannot background the stream.
• Put the display on a monitor or tablet with a matte panel if it faces a window; a permanently lit screen in a glass-walled site office is unreadable by mid-morning.

Spell this out in your installation sheet. It converts a recurring support complaint into a five-line setup step, and it costs you nothing in hardware.

Two-way communication: what has to be on the datasheet

Two-way audio means a microphone and a speaker on the camera, plus talk-back in the app. It is not universal across a 150-SKU catalogue, so treat it as a hard filter rather than an assumption. Before quoting, confirm on the specific model:

• Two-way audio present on that exact variant — check the specification line on the product pages, not the series description.
• Push-to-talk or open channel. Ask whether talk-back is half duplex (press to speak) or full duplex, because it changes how you train a guard to use it.
• Speaker output and siren behaviour. Deterrence at a fence line and a conversation at a gate are different use cases; buyers usually want both and only test one.
• Audio over the cellular link. Talk-back consumes uplink data on every use, which matters when the SIM plan is being bought in bulk alongside the cameras.

If an end client's brief says "two-way communication" and nothing else, ask which of those two jobs it is. Warning an intruder off a yard and speaking with a delivery driver lead to different SKUs and different mounting heights.

Which series to shortlist

There are 49 AOV models in the catalogue, with wholesale prices quoted per order, in four series:

For a permanent live display, the deciding factor is the 8000mAh/8W versus 20000mAh/15W split. The 8000mAh/8W platform — SG-C41G-10T66-V1 as the entry point, SG-D42G-10F66-V1 for dual lens — suits sites with strong, unobstructed sun and a display that is watched during working hours. The 20000mAh/15W platform is the one to quote when the feed is watched around the clock, when talk-back is used frequently, or when the mounting position is shaded, north-facing in the northern hemisphere, or heading into a monsoon or overcast season. The extra cost per unit on a fifty-camera order is trivial against one truck roll to a site whose cameras browned out in week three.

Resolution across all four series is 2K. The catalogue standard is 1080p–2K; 4K exists only as a custom or OEM build, so if a tender specifies it, that becomes a project quote rather than a stock order.

Storage and retention on a continuously recording camera

Standard storage is microSD up to 128GB, with larger capacities available on custom orders. On an AOV camera this card is a rolling buffer, not an archive — continuous recording overwrites it on a loop, and the retention window depends on the bitrate and framerate you configure. Two practical consequences for your quotes:

1. If the client has an evidentiary retention requirement, that is a cloud or NVR line item, not a card-size line item. Sell it as such rather than promising a retention period the card cannot hold.
2. Ship the cards with the cameras. Sites that source their own end up with mixed, unrated cards, and the resulting failures come back to you as camera faults.

All units are IP66 rated for outdoor mounting. Installation is 5–10 minutes per camera — no grid power, no WiFi — which is what makes fifty-unit rollouts realistic for a two-person crew in a single day.

Sourcing terms for importers and distributors

The cameras are manufactured by Shenzhen Leksell, established 2012, TÜV Rheinland certified, with CE, FCC and RoHS compliance on file for customs. Our Vietnam office is in Ho Chi Minh City.

• MOQ: 10 units for a trial order; 100 units for OEM/ODM, which is available on every model including all 49 AOV SKUs — your own brand on the housing, the packaging and the app.
• Margin: 20% from roughly 10 units, 30% from roughly 50. Dealer terms are set at the tier, not negotiated per order.
• Lead time: samples 7–10 days by air; bulk 25–40 days by sea; within Vietnam, 7–10 business days.

A sensible first order for this use case is a small mixed trial — one 8000mAh/8W unit and one 20000mAh/15W unit at the client's actual mounting position, run for two weeks against a display in kiosk mode. That single test settles the panel question for the whole rollout and gives you a defensible recommendation instead of a guess. Send the site details and the two-way audio requirement to info@solaguard.net or through the wholesale enquiry page, and quantity pricing comes back from a person, with the variant list matched to what the site actually needs.