Day & Night: 24-Hour Vision with PARD & HIKMICRO Alpex

Most hunters end up wanting to see both heat and detail — thermal to find game in the dark, and a natural daylight-style image to identify it. A day-and-night optic aims to do both jobs in one scope. Here's how 24-hour digital night vision works, where it shines, and how it compares to running a separate thermal.

Quick answer

A day-and-night digital scope, like the PARD Night Stalker 4K or the HIKMICRO Alpex 4K, uses a high-resolution sensor that works in full daylight and switches to digital night vision with an infrared illuminator after dark. It gives a natural, detailed image for identifying targets and reading fine detail — where thermal excels at finding heat. Many hunters run a thermal to scan and a day/night scope to confirm and shoot; a 24-hour optic combines the day scope and the night scope into one.

Thermal vs digital night vision — they solve different problems

It's worth being clear, because the two are often confused:

• Thermal detects heat. It's unbeatable for finding warm game across open country in total darkness, through light cover, with no light at all. But it shows heat shapes, not fine visual detail.
• Digital night vision uses a light-sensitive sensor and an infrared illuminator to build a natural, daylight-style picture. It excels at identifying a target and reading detail — but it needs some light or IR, and it won't pick a cold-camouflaged animal out of a hillside the way thermal does.

That's why many serious hunters carry both: a thermal monocular to scan, and a night vision or day/night scope to confirm and take the shot.

What a 24-hour optic gives you

A day-and-night scope like the PARD Night Stalker 4K or HIKMICRO Alpex 4K runs a high-resolution (4K-class) sensor that delivers a full-colour image by day and switches to digital night vision after dark with an IR illuminator. The appeal is one optic that:

• Works around the clock — a true day scope in daylight, a night vision scope after dark, with no swapping.
• Identifies with detail — the natural image makes confirming your target and aim point easier than reading a heat shape.
• Mounts familiarly — many drop into standard rings like a conventional scope.

The trade-off is that digital night vision relies on IR illumination in the dark, so you'll budget for a good IR torch, and it won't detect hidden game the way thermal will. For full detail on the night-vision options, see our night vision scope guide.

Which approach is right for you?

• One 24-hour scope if you want a single optic that does day and night and you value identification detail — and you're happy to add an IR torch.
• Thermal plus a day/night scope if you hunt where finding hidden game in total dark matters — scan with thermal, confirm and shoot with the day/night optic.

As always, thermal and night vision are legal to own across Australia, but some states restrict their use for hunting, particularly on public land — check your current state regulations.

FAQ

What's the difference between thermal and night vision?

Thermal detects heat and is best for finding game in total darkness; digital night vision builds a natural, detailed image with some light or IR and is best for identifying your target. Many hunters use both.

Can one scope do both day and night?

Yes — day/night digital scopes like the PARD Night Stalker 4K and HIKMICRO Alpex 4K work in daylight and switch to digital night vision with an IR illuminator after dark.

Do I need an IR torch for a day/night scope?

For the night-vision mode, yes — digital night vision relies on infrared illumination in the dark, so budget for a quality IR torch alongside the scope.

Should I buy a 24-hour scope or a separate thermal?

A 24-hour scope gives identification detail in one optic; a separate thermal is better at finding hidden game in total dark. Many hunters run both — thermal to scan, day/night to shoot.

Related: Best Night Vision Scopes 2026 · Night Vision Scopes · PARD · HIKMICRO · How Thermal Imaging Works