Exclusively distributed in Australia by C.R. Kennedy · Full local warranty · No grey market
Pixfra Sirius
MONOCULARS

Pixfra Sirius

CHOOSE YOUR MODEL · 5 CONFIGURATIONS
PFI-S650 · AUD, inc. GST
$3,290.00 Incl GST
● In stock — ships FREE by StarTrack Express · Full C.R. Kennedy AU warranty · Serviced locally, never sent overseas
RANGE
Five models — three 640×512, two 1280×1024 HD
SENSITIVITY
≤18 mK NETD — every model
DETECTION
up to 3,600 m (SA70D)
RANGEFINDER
1,000 m LRF — on the Sirius LRF
THE STRAIGHT ANSWER

Find the animal first. Then decide whether to move.

A thermal monocular is the tool you scan with — before the stalk, before you shoulder anything. The Pixfra Sirius is a handheld thermal spotter that picks a warm body out of a cold paddock at real distance, so you know what's out there and where it is while you're still deciding what to do about it. It rides in a jacket pocket, runs off a replaceable 18650, and is sealed to IP67 for the weather you actually hunt in.

Pixfra is one of the few brands that designs and manufactures its own thermal sensor cores, which is what lets it offer the Sirius as a whole family rather than a single model. There are five, across two sensor tiers. The 640×512 tier: the Sirius Standard (S650), a single 50 mm optic and the value way in; the Sirius LRF (S650LRF), the same optic with a built-in 1,000 m laser rangefinder; and the Sirius Zoom (S650D), a dual field-of-view model that switches between a wide 25 mm scanning view and a tight 50 mm detail view. The higher-resolution 1280×1024 HD tier: the Sirius HD (SA50), a single 50 mm optic on the finer sensor; and the Sirius HD Zoom (SA70D), a dual 35 / 70 mm model that reaches out to 3,600 m. Every model shares the same ≤18 mK sensitivity, FHD OLED, six palettes, 64 GB storage and Wi-Fi app.

SPOT
640×512 or 1280×1024
A fine VOx detector — 640 or, on the HD models, 1280×1024 — pulls faint heat out of a cold background long before the naked eye or a lamp would find it.
RANGE
1,000 m LRF on the Sirius LRF
The LRF model builds in a laser rangefinder accurate to ±1 m out to 1,000 m, so you can measure the target's distance the moment you spot it.
SCAN
Dual FOV on Zoom & HD Zoom
The Zoom (25 / 50 mm) and HD Zoom (35 / 70 mm) switch between a wide view to sweep ground and a tight view to confirm what you've found — no refocusing.
REACH
Up to 3,600 m on the HD Zoom
The HD Zoom's 70 mm optic on the 1280×1024 sensor pushes detection to 3,600 m — the longest reach in the range.
Pixfra Sirius LRF thermal monocular with built-in laser rangefinder, held in hand while scanning bushland.
640×512 TIER · STANDARD · LRF · ZOOM

The 640 tier: the way most hunters buy in.

Three models share the 640×512 ≤18 mK sensor. The Sirius Standard (S650) is the value entry — a single 50 mm F0.9 optic at 3.45×, reaching 2,600 m detection. The Sirius LRF (S650LRF) adds a built-in laser rangefinder accurate to ±1 metre out to 1,000 m, so you scan, find the animal, and press once to know exactly how far away it is. The Sirius Zoom (S650D) instead carries a dual field-of-view lens — a wide 25 mm view at 1.72× to sweep a paddock quickly and a 50 mm view at 3.45× to confirm what you've found, switching without refocusing. Pick the Standard to keep it simple, the LRF to range what you find, or the Zoom to scan faster.

1,000 m
LRF · ±1 m — SIRIUS LRF
2,600 m
DETECTION RANGE
3
MODELS ON THE 640 SENSOR
1280×1024 HD TIER · HD · HD ZOOM

The HD tier: a finer sensor, and the longest reach.

Two models step up to a 1280×1024 sensor — four times the pixels of the 640 tier, for a more detailed thermal picture. The Sirius HD (SA50) is a single 50 mm F1.0 optic at 1.72×, detecting to 2,600 m on the finer sensor. The Sirius HD Zoom (SA70D) is the flagship: a dual field-of-view lens switching between a 35 mm wide view (1.21×, detection 1,800 m) and a 70 mm tight view (2.41×, detection 3,600 m) — the longest reach in the range. Both keep the same ≤18 mK sensitivity, FHD OLED, six palettes, 64 GB storage and Wi-Fi app as the rest of the family; the HD sensor and, on the SA70D, the longer optic are what you're paying the step up for.

1280×1024
HD SENSOR — 4× THE PIXELS
3,600 m
DETECTION — SA70D @ 70 mm
35 / 70 mm
DUAL FOV — HD ZOOM
SPECS AT A GLANCE

Compare the Pixfra Sirius range

Side by side, nothing buried. With NETD, a lower number is better.

Standard
640×512
SENSOR RESOLUTION
NETD ≤18 mK
Objective lens 50 mm F0.9
Detection 2,600 m
Rangefinder Not fitted
LRF
640×512
SENSOR RESOLUTION
NETD ≤18 mK
Objective lens 50 mm F0.9
Detection 2,600 m
Rangefinder 1,000 m — built in
Zoom
640×512
SENSOR RESOLUTION
NETD ≤18 mK
Objective lens 25 & 50 mm dual FOV
Detection 1,300 / 2,600 m
Rangefinder Not fitted
HD
1280×1024
SENSOR RESOLUTION
NETD ≤18 mK
Objective lens 50 mm F1.0
Detection 2,600 m
Rangefinder Not fitted
HD Zoom
1280×1024
SENSOR RESOLUTION
NETD ≤18 mK
Objective lens 35 & 70 mm dual FOV
Detection 1,800 / 3,600 m
Rangefinder Not fitted
OUR TAKE

Which Pixfra Sirius is for you?

Standard
$3,290.00
The value way into 640 thermal. A single 50 mm F0.9 optic on the 640×512 sensor at 3.45x, reaching 2,600 m detection – the same core spotter as the LRF, without the rangefinder. Best for the hunter who wants a capable 640 spotter at the sharpest price.
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HD
$5,990.00
The step up to HD. A single 50 mm F1.0 optic on the finer 1280×1024 sensor at 1.72x, detecting to 2,600 m – four times the pixels of the 640 models for a more detailed thermal picture. Best for the hunter who wants maximum image detail from a single-lens spotter.
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HD Zoom
$9,500.00
The flagship – HD resolution and the longest reach. A dual field-of-view lens on the 1280×1024 sensor: 35 mm wide (1.21x, 1,800 m) to sweep, 70 mm tight (2.41x, 3,600 m) to reach right out. Best for open country where both detail and distance matter.
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LRF
$3,990.00
The spotter that measures what it finds. A single 50 mm F0.9 optic on the 640 sensor at 3.45×, reaching 2,600 m detection, with a built-in laser rangefinder accurate to ±1 m out to 1,000 m. Best for the hunter who wants to confirm the distance to an animal the moment they spot it — and carry the lighter of the two.
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Zoom
$4,150.00
The spotter built for scanning. The dual field-of-view S650D sweeps wide at 25 mm (1.72×) to cover ground fast, then switches to 50 mm (3.45×) to confirm what you’ve found without refocusing. No rangefinder — this one’s for open country where finding the animal quickly matters more than measuring it.
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Shared across the Sirius range
Detector VOx uncooled, 12 µm — 640×512 or 1280×1024 (HD)
Thermal Sensitivity (NETD) ≤18 mK @ f/1.0
Sensor Frame Rate 50 Hz
Display 0.49" OLED, 1920×1080
Colour Palettes 6
Digital Zoom 1× / 2× / 4× / 8×
Onboard Storage Built-in 64 GB
Connectivity Wi-Fi — Pixfra Outdoor app
Compass / Microphone Yes / Yes
Weather Rating IP67
Battery Replaceable, rechargeable 18650
Warranty 3 Years (1 Year Rechargeable Battery)
TECHNICAL SPECIFICATIONS

Pixfra Sirius — full spec, all five models

Where a value is shared across every model it spans the row. Where it differs, each model is listed left to right in the order Standard, LRF, Zoom, HD, HD Zoom. The Zoom and HD Zoom carry dual field-of-view lenses, so their optical figures are given for each view.

SPECIFICATION
Standard
$3,290
LRF
$3,990
Zoom
$4,150
HD
$5,990
HD Zoom
$9,500
THERMAL DETECTOR
Detector Type
Vanadium Oxide (VOx) Uncooled Focal Plane Detector
Effective Pixels
640 × 512
640 × 512
640 × 512
1280 × 1024
1280 × 1024
Pixel Pitch
12 µm
Spectral Range
8 – 14 µm
Sensitivity (NETD)
≤18 mK @ f/1.0, 25 °C
Frame Rate
50 Hz
OPTICS & RANGING
Focal Length
50 mm
50 mm
25 mm & 50 mm
50 mm
35 mm & 70 mm
Aperture
F0.9
F0.9
25 mm: F0.88 / 50 mm: F1.1
F1.0
35 mm: F0.92 / 70 mm: F1.1
Field of View (H × V)
8.8° × 7.1°
8.8° × 7.1°
25 mm: 17.9° × 14.2° / 50 mm: 8.8° × 7.0°
17.2° × 13.8°
35 mm: 25.4° × 20.3° / 70 mm: 12.4° × 10°
Magnification
3.45×
3.45×
1.72× / 3.45×
1.72×
1.21× / 2.41×
Digital Zoom
1× / 2× / 4× / 8×
Focus Control
Manual
Close Focus Distance
3 m
3 m
25 mm: 2 m / 50 mm: 8 m
3 m
35 mm: 5 m / 70 mm: 10 m
Detection Distance
2,600 m
2,600 m
25 mm: 1,300 m / 50 mm: 2,600 m
2,600 m
35 mm: 1,800 m / 70 mm: 3,600 m
Recognition Distance
662 m
662 m
25 mm: 331 m / 50 mm: 662 m
662 m
35 mm: 464 m / 70 mm: 928 m
Identification Distance
331 m
331 m
25 mm: 166 m / 50 mm: 331 m
331 m
35 mm: 232 m / 70 mm: 464 m
Laser Rangefinder
Not fitted
1,000 m (±1 m)
Not fitted
Not fitted
Not fitted
DISPLAY, IMAGE & FEATURES
Screen
0.49" OLED, 1920×1080
Colour Palettes
6 — White Hot, Black Hot, Iron Red, Alarm, Emerald, Amber
Video Compression
H.264
Diopter
−5D to +3D
Eye Relief
15 mm
Exit Pupil
8 mm
Video Recorder / Snapshot
Yes
Wi-Fi Hotspot
Yes
Hot Spot Track
Yes
FFC Calibration
Auto / Semi-auto / Manual
Auto / Semi-auto / Manual
Auto / Semi-auto / Manual
Auto / Manual / External
Auto / Manual / External
Microphone
Yes
Compass
Yes
Defective Pixel Correction
Yes
Onboard Storage
Built-in 64 GB
POWER, PHYSICAL & ENVIRONMENTAL
Battery Type
Rechargeable, Replaceable 18650
Battery Life
Approx. 6 h @ 25 °C (Wi-Fi off)
6 h @ 25 °C (Wi-Fi off)
Approx. 6 h @ 25 °C (Wi-Fi off)
4.5 h @ 25 °C (Wi-Fi off)
4.5 h @ 25 °C (Wi-Fi off)
Power Supply
5 VDC / 2 A
Port
USB Type-C
Protection Grade
IP67
Operating Temperature
−30 °C to +55 °C
Net Weight
—
635 g
573 g
544 g
908 g

Specifications are supplied by the manufacturer and may be revised without notice. Thermal detection distance refers to a large heat source under favourable conditions and is a sensor benchmark for comparison, not a shooting or identification distance — identification happens far closer. Figures are drawn from the Pixfra PFI-S650LRF, PFI-SA50 and PFI-SA70D datasheets; the Standard (PFI-S650) mirrors the S650LRF without the rangefinder, and the Zoom (PFI-S650D) figures follow the manufacturer's published S650D specification. Base-S650 net weight is not separately published; the LRF adds the rangefinder module.

BUILT INTO EVERY SIRIUS

The features that matter on a spotter.

01
640×512 or 1280×1024 · ≤18 mK
A 12 µm vanadium-oxide sensor — 640×512, or 1280×1024 on the HD models — with ≤18 mK sensitivity resolves faint temperature differences, so a warm animal reads clearly against a cold paddock.
02
FHD OLED · 6 palettes
A 1920×1080 0.49-inch OLED with white hot, black hot, iron red, alarm, emerald and amber — read the scene the way that suits the ground and the light.
03
Step zoom 1×–8×
Digital step zoom at 1×, 2×, 4× and 8× on top of the optical magnification, for a closer look once you've picked something up.
04
Wi-Fi app · 64 GB · recording
Records stills and video to 64 GB of built-in storage and streams the live view over Wi-Fi to the Pixfra Outdoor app so a mate can watch along.
05
Compass, microphone & hot-spot track
An on-board digital compass, a microphone for voice notes on video, and hot-spot tracking that flags the warmest object in frame.
06
Carbon-fibre-textured, IP67, 18650
A carbon-fibre-textured body sealed to IP67 with a crystal breathing power button, running a replaceable, rechargeable 18650 battery.
ACROSS THE PIXFRA RANGE

What sits alongside the Sirius

The Sirius is the handheld spotter. Here's where it sits against the rest of the Pixfra optics range — from a compact monocular to a dedicated thermal scope.

Pixfra Arc
MONOCULAR · COMPACT View the Arc →
Pixfra Arc
A more compact thermal monocular line, including LRF versions — the lighter, lower-cost way into handheld thermal.
View range
Pixfra Sirius YOU ARE HERE
MONOCULAR · 640 & HD You are here
Pixfra Sirius
You are here — the handheld spotter family: three 640×512 models (Standard, LRF, Zoom) and two 1280×1024 HD models (HD, HD Zoom).
From $3,290
Pixfra Pegasus 2 LRF
THERMAL · WEAPON SIGHT View the Pegasus 2 →
Pixfra Pegasus 2 LRF
Once you've found it with the Sirius, the Pegasus 2 LRF is the dedicated thermal riflescope that takes the shot.
From $2,890
Pixfra Taurus
CLIP-ON · THERMAL View the Taurus →
Pixfra Taurus
Prefer to keep your day scope? The Taurus is a true 1× thermal clip-on that mounts ahead of the glass you already trust.
From $2,450
IN THE BOX
Sirius thermal monocular
Replaceable 18650 battery
USB-C cable
Hand strap
Lens cloth
Quick start guide
DOWNLOADS & SUPPORT
Sirius LRF datasheet (PFI-S650LRF, PDF) Sirius HD datasheet (PFI-SA50, PDF) Sirius HD Zoom datasheet (PFI-SA70D, PDF) Sirius user manual (PDF) Pixfra Outdoor App
FREQUENTLY ASKED

Pixfra Sirius — common questions

The Sirius comes in five models across two sensor tiers. On the 640×512 sensor: the Standard (S650), a single 50 mm optic and the value way in ($3,290); the LRF (S650LRF), the same optic plus a built-in 1,000 m laser rangefinder ($3,990); and the Zoom (S650D), a dual 25 / 50 mm field-of-view model for fast scanning ($4,150). On the higher-resolution 1280×1024 HD sensor: the HD (SA50), a single 50 mm optic ($5,990); and the HD Zoom (SA70D), a dual 35 / 70 mm model reaching 3,600 m ($9,500). Every model shares the same ≤18 mK sensitivity, FHD OLED, six palettes, 64 GB storage and Wi-Fi app.
Sensor resolution. The three 640×512 models (Standard, LRF, Zoom) are the mainstream choice and cover most hunting. The two HD models (SA50, SA70D) use a 1280×1024 detector — four times as many pixels — for a more detailed thermal picture, and the HD Zoom's 70 mm optic reaches the longest detection in the range at 3,600 m. You're paying the step up for the finer sensor and, on the SA70D, the longer optic; the core features are shared across both tiers.
It's a handheld thermal monocular — a spotter, not a weapon sight. You use it to scan the ground and find warm animals before you decide whether and how to approach. It has a standard tripod thread on the base if you want to mount it for long observation, but it isn't designed to be fitted to a firearm.
It depends on the model and its optic. Detection — the distance at which the sensor picks up a large warm target under good conditions — runs to 2,600 m on the 50 mm 640 and HD models, and up to 3,600 m on the HD Zoom's 70 mm optic. That figure is a benchmark for comparing sensors, not a distance at which you can tell what the animal is: recognition and identification happen far closer (around 662 m and 331 m respectively on the 50 mm models). In real hunting terms you'll pick up heat well beyond the range you'd ever act on, giving you time to plan.
It measures the straight-line distance to whatever you're looking at, accurate to about ±1 metre out to 1,000 m, shown on the display. That lets you confirm how far away an animal is the moment you spot it — useful for planning a stalk or judging whether a shot from your rifle would even be ethical. Only the Sirius LRF has a rangefinder; the Standard, Zoom, HD and HD Zoom do not.
A dual-FOV lens gives you two magnifications you can switch between without refocusing. The Zoom (S650D) pairs a wide 25 mm view (1.72×) to sweep ground fast with a 50 mm view (3.45×) to confirm what you've found. The HD Zoom (SA70D) pairs a 35 mm view (1.21×, detection 1,800 m) with a 70 mm view (2.41×, detection 3,600 m) on the HD sensor. Both let you go from sweeping a paddock to studying a single animal in an instant.
Yes — every model records stills and video to 64 GB of built-in storage and streams the live view over Wi-Fi to the Pixfra Outdoor app, so someone else can watch along on a phone or you can review footage later. There's also an on-board microphone for adding voice notes to recordings.
Three years on the optic and one year on the rechargeable battery, backed in Australia by C.R. Kennedy. If your Sirius ever needs attention it's assessed and serviced locally — never sent overseas. Genuine stock, local warranty, local turnaround.

Scan smarter — see what's out there before you move.

Genuine stock, backed by C.R. Kennedy — and if it ever needs attention, it's serviced here in Australia, never sent overseas.

Add to cart Why buy from Pixfra Australia