SPI Wasp T640-35-M



Detector type: Vanadium Oxide, Uncooled Focal Plane Arrays
Refresh rate: 50 HZ
Resolution: 640 x 512
FOV: 17.7° × 14.2°


  • USB Cable
  • Neck Belt
  • Protective Bag
  • Operators Manual
  • Lens Tissue
Thermal imaging monocular optics military grade compact


The SPI Wasp handheld observational thermal monocular is equipped with a 384×288 or 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.


Distance Measurement:
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.

Mode Switch:
Device supports pallet switch and distance measurement.

Built-in memory module supports video recording/snapshot capturing.

Digital Zoom:
Device supports 1×, 2×, and 4× digital zoom.

Wi-Fi Hotspot:
Device can capture snapshots, record videos, and set parameters via APP after being connected to your phone.

  • 384×288 or 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)


Detector type Vanadium Oxide, Uncooled Focal Plane Arrays
Response Waveband 8μm to 14μm
FFC (Flat Field Correction) Auto, Manual, External Correction
Refresh rate 50 HZ
Resolution 640 x 512
Detector Pitch 17μm
NETD < 35mk (@25°C, F#=1.0)
Optical magnification 1.4x
Lens (focal length) 35mm
Field of view (H × X) 17.7° × 14.2°
Digital zoom 1x, 2x, 4x
Monitor 0.39-inch, OLED, 1024 × 768
Hot Track Yes
Imaging palettes Black hot, White hot, Red hot, Fusion
Storage Built-in memory module (16GB)
Record Video Support on-board video recording
Capture Snapshot Yes
Battery Type Built-in rechargeable Lithium battery
Wi-Fi Yes, Hotspot
Battery Operating Time Up to 5 hours continuous running
Battery Capacity Display Yes
Power supply 5V DC/2A, 2W
Weight 480 g (16.9 oz)
Working Temperature/ Humidity -30°C to 55°C (-22°F to 131°F)
Overall Dimensions 202 × 74 × 66 mm (7.9 × 2.9 × 2.6 in)
Protection Level IP67