RIX Stride ST3 Lite Thermal Monocular – Ultra-Light Helmet Mounted 384 Thermal

The RIX Stride ST3 Lite Thermal Monocular is purpose-built for helmet-mounted thermal setups where weight, balance, and mobility matter most.

Designed around a 384×288 resolution, 12µm sensor with <20mK sensitivity, the ST3 Lite delivers clean thermal separation and strong contrast through its 1024×768 OLED display. With a true 1× base magnification, wide 92 ft field of view at 100 yards, and up to 6× digital zoom, it provides real-time situational awareness without tunnel vision.

At just 6.7 ounces, this is one of the lightest helmet mounted thermal monoculars in its class. Detection range is rated at 852 yards (6ft object), giving you the ability to identify heat signatures well before engagement distance.

If your priority is a lightweight, hands-free thermal monocular for night hunting, the ST3 Lite was built specifically for that role.

Why the ST3 Lite Works So Well on a Helmet

Most thermal monoculars were originally designed for handheld use. When mounted on a helmet, heavier thermals quickly create neck strain and balance issues.

The ST3 Lite solves that problem.

Ultra-Lightweight (6.7 oz)
Minimizes front-heavy helmet fatigue during long hunts.

True 1× Base Magnification
Critical for helmet-mounted thermal use. Maintains depth perception and reduces motion discomfort while walking or scanning.

Wide Field of View (92 ft @ 100 yards)
Allows constant environmental awareness when moving through pasture, crop fields, or timber.

Compact 4.7″ Length
Improves helmet balance and keeps weight close to the pivot point.

For helmet mounted thermal setups, weight and base magnification matter more than extreme zoom numbers. The ST3 Lite is optimized specifically for hands-free scanning.

Southern Precision Outdoors Field Perspective

If you are running a thermal scope on your rifle, the ST3 Lite becomes your dedicated helmet mounted scanner.

It allows you to:

• Move through pasture or timber without raising a rifle

• Maintain continuous thermal awareness

• Identify animals before they commit

• Keep both hands free while navigating terrain

This is not a long-range identification monocular.
It is a helmet-focused thermal awareness tool built for mobility.

For hunters searching for the best helmet mounted thermal under $1000, the ST3 Lite delivers a very practical and efficient solution.

RIX Stride ST3 Lite Specifications

Sensor & Detection

• Resolution: 384×288

• Pixel Pitch: 12 micron

• Refresh Rate: 50Hz

• NETD: <20mK

• Detection Range (6ft object): 852 yards

Optics

• Base Magnification: 1×

• Digital Zoom: Up to 6×

• Field of View: 92 ft @ 100 yards

• LRF: No

Display

• OLED Resolution: 1024×768

Recording & Connectivity

• Video Recording: Yes

• Audio Recording: Yes

• Streaming App: Yes

• Color Palettes:

  • White Hot

  • Black Hot

  • Red Hot

  • Red Monochrome

  • Green Monochrome

  • Color

Power

• Battery Type: Removable 18650

• Battery Runtime: 4+ Hours

• External Power: USB-C

Durability

• Waterproof Rating: IPX67

Size & Weight

• Weight: 6.7 oz

• Dimensions: 4.7” × 2.8” × 1.9”

ST3 Lite vs ST6 Lite – Which Should You Choose?

Both models are designed as helmet mounted thermal monoculars. The difference comes down to resolution and detection range.

Choose the ST3 Lite if your focus is helmet balance, affordability, and wide-area scanning.

Choose the ST6 Lite if maximum image detail and extended detection are your top priorities.

Who Is the ST3 Lite Best For?

• Hunters building a lightweight helmet-mounted thermal system

• Hog hunters running rifle-mounted thermals

• Predator hunters covering large pasture

• Mobile night hunters prioritizing balance and weight savings

• Buyers searching for a 384 helmet mounted thermal monocular under $1000

Frequently Asked Questions

Is the ST3 Lite designed for helmet mounting?

Yes. Its 6.7oz weight, true 1× magnification, and wide field of view make it ideal for helmet-mounted use.

Does it have a built-in laser rangefinder?

No. The ST3 Lite does not include an LRF.

How far can it detect?

Detection is rated at 852 yards on a 6ft object under ideal conditions.

Does it record video?

Yes. It supports onboard video and audio recording and mobile streaming.

Is 384 resolution enough for helmet use?

Yes. For helmet-mounted scanning, wide field of view and lightweight design are more important than extreme magnification.

Why Buy From Southern Precision Outdoors?

Southern Precision Outdoors is a family-owned business built by hunters who live for the night. We run helmet-mounted thermal setups ourselves and help customers configure systems that perform in real hunting conditions.

• Trade-Ins Accepted

• Financing Available

• Nationwide Shipping

• Real Hunters. Real Support

Call 678-630-9758 to reserve your RIX Stride ST3 Lite or discuss a complete helmet-mounted setup.