Clearance · Handheld thermal monocular
Sight-MastIR: compact thermal vision for the field.
The Sight-MastIR is a pocket-size thermal monocular that sees body heat in total darkness. A sensitive 400×300 sensor, a crisp 1280×960 eyepiece and a choice of 19 mm or 35 mm lens make it easy to scan a field, a tree line or a barn at night. Stream live video to your phone over Wi-Fi and run it for up to 7 hours on a swappable 18650 battery.
- 400×30012 μm thermal sensor
- <40 mKthermal sensitivity
- Up to 3.4×optical zoom
- 7 hrswappable 18650 battery
Sharp heat images in any light
Thermal imaging reads the heat that people, animals and engines give off and turns it into a picture. It needs no light at all, so it works in complete darkness, at dusk and dawn, in smoke and in fog.
- 400×300 sensor with 12 μm pixels and under 40 mK sensitivity picks up small temperature differences
- 1280×960 HD eyepiece display, like a 22-inch screen viewed from 3 ft
- 50 Hz refresh for smooth tracking of moving animals
- Optical zoom plus 4× digital zoom with picture-in-picture
Phone app, palettes and hot spot tracking
Pair the Sight-MastIR with the free app for Apple and Android to cast live video to your phone and record clips there. Bluetooth works with remotes.
- Wi-Fi video casting to your phone or tablet
- Record video straight to your phone
- Hot spot tracking marks the warmest point in view
- Multiple color palettes: white hot, black hot and color modes
Choose your lens
Pick the lens in the options above. A shorter lens shows a wider view. A longer lens magnifies more for spotting at distance.
| Lens | Optical zoom | Best for |
|---|---|---|
| 19 mm | 1.9× | Widest view. Best for walking, scanning close to medium range and around buildings. |
| 35 mm | 3.4× | More magnification for open fields and spotting animals farther out. |
What people use it for
See the app in action
Bee hive check with the 19 mm lens
Sight-MastIR vs. Trail-TrackIR
| Sight-MastIR | Trail-TrackIR | |
|---|---|---|
| Thermal sensor | 400 × 300 @ 12 μm | 400 × 300 @ 17 μm or 640 × 480 @ 12 μm |
| Sensitivity (NETD) | < 40 mK | < 50 mK (400 × 300) |
| Lens choices | 19 mm or 35 mm | 19, 25, 35 or 50 mm |
| Optical zoom | 1.9× (19 mm), 3.4× (long lens) | 1.7× (25 mm), 2.3× (35 mm), 3.3× (50 mm) |
| Digital zoom | 4× | 4× |
| Eyepiece display | 1280 × 960 HD | 1280 × 960 HD |
| Recording | On your phone through the app | 16 GB built in, plus the app |
| Video out | Wi-Fi casting | Wi-Fi casting and HDMI |
| Extras | Bluetooth, hot spot tracking, picture-in-picture zoom | Bluetooth, hot spot tracking, picture-in-picture zoom, built-in light and laser indicator |
| Battery | Up to 7 hours, swappable 18650 | Up to 5 hours |
| Weather rating | IP66 | IP66 |
| Best for | Compact everyday carry and close-to-medium range scanning | Longer range spotting, recording and higher resolution |
Sight-MastIR specifications
| Sensor resolution | 400 × 300 |
|---|---|
| Pixel pitch | 12 μm |
| Spectral range | 8–14 μm |
| Sensitivity (NETD) | < 40 mK @ F1, 25 °C |
| Lens options | 19 mm F1.0 or 35 mm |
| Optical zoom | 1.9× (19 mm), 3.4× (long lens) |
| Digital zoom | 4× |
| Frame rate | 50 Hz |
| Display | 1280 × 960 HD |
| Connectivity | Wi-Fi video casting, Bluetooth, phone app (Apple and Android) |
| Features | Picture-in-picture zoom, hot spot tracking, multiple color palettes |
| Battery | Replaceable 18650, up to 7 hours |
| Weather rating | IP66 |
Sight-MastIR questions
What is the difference between thermal and night vision?
Regular night vision amplifies the little light that is available, so it struggles in total darkness. A thermal monocular reads heat instead of light, so animals and people stand out clearly even with no light at all, and in smoke or fog.
Which Sight-MastIR lens should I get?
Get the 19 mm lens for the widest view and close to medium range, like walking trails or checking around buildings. Get the 35 mm lens for more magnification when you watch open fields or spot animals farther away.
Can I record video with the Sight-MastIR?
Yes. Connect it to the free phone app over Wi-Fi to see the live image on your phone and record video there.
How long does the battery last?
Up to 7 hours on one replaceable 18650 battery. Carry a charged spare for long nights.
Is the Sight-MastIR waterproof?
It is rated IP66, which means dust-tight and protected against strong water jets. Rain is fine, but do not submerge it.
Need more range?
See the Trail-TrackIR
Up to a 640×480 sensor and a 50 mm lens, 16 GB of built-in recording and HDMI out.
