The Asp handheld observational thermal monocular is equipped with a 640×512 infrared detector and a 1024×768 OLED display. It supports functions of observation, hot spot tracking, distance measurement, Wi-Fi hotspot, and so on. The high-sensitivity built-in thermal detector provides you with clear view even in total darkness. The monocular is mainly applied to scenarios such as patrolling, law enforcement, searching and rescuing, drug enforcement, anti-smuggling, criminal seizing, hiking, travel, and hunting, etc.
AGM ASP TM35-640 Handheld Thermal Monocular Review
The device realizes distance measurement function after marking the top and bottom of target, and input the target height.
Hot Spot Mark:
The device detects and marks the hot spot of highest temperature.
Device supports pallet switch and distance measurement.
Built-in memory module supports video recording/snapshot capturing.
Device supports 1×, 2×, and 4× digital zoom.
Device can capture snapshots, record videos, and set parameters via APP after being connected to your phone.
Warning: California's Proposition 65
- 640×512 resolution, high sensitivity detector
- Adaptive AGC, DDE, 3D DNR
- 1024×768 resolution 0.39-inch OLED display
- Built-in memory supports video recording/snapshot capturing
- Wi-Fi hotspot
- Built-in rechargeable Li-Ion battery
- Up to five hours continuous running (with Wi-Fi hotspot function off)
- Limited 3-year warranty
USB Type C
Vanadium Oxide Uncooled Focal Plane Arrays
8μm to 14μm
FFC (Flat Field Correction)
Auto, Manual, External Correction
640 × 512
(Vehicles: 1.4×4.0m) - 862yd (Humans: 1.8×0.5m) - 281yd
(Vehicles: 1.4×4.0m) - 3452yd (Humans: 1.8×0.5m) - 1125yd
(Vehicles: 1.4×4.0m) - 431yd (Humans: 1.8×0.5m) - 141yd
< 35mk (@25°C, F#=1.0)
Lens (focal length)
Field of view (H × X)
17.7° × 14.2°
1x, 2x, 4x
0.39-inch, OLED, 1024 × 768
Black hot, White hot, Red hot, Fusion
Built-in memory module (16GB)
Support on-board video recording
Built-in rechargeable Lithium battery
Yes (via USB)
Battery Operating Time
Up to 5 hours continuous running
Battery Capacity Display
5V DC/2A, 2W
480 g (16.9 oz)
Working Temperature/ Humidity
-30°C to 55°C (-22°F to 131°F)
202 × 74 × 66 mm (7.9 × 2.9 × 2.6 in)