| C series | C400 | C640 | C640Pro |
| Detector resolution | 384×288 | 640×480 | |
| Wavelength range | 8~14um | ||
| NETD | 45mk | 40mk | 30mk |
| Frame frequency | 25Hz/9Hz | ||
| Focusing way | Electric/automatic | ||
| Standard lens (field Angle /F number) | 21.7°×16.4°/25mm/F1.0 | 24.6°×18.5°/25mm/F1.0 | |
| Extended lens (field Angle /F number) | 40.5°×31°/13mm/F1.1/0.15m | 45.4°×34.9°/13mm/F1.1/0.1m | |
| 10.0°×7.5°/55mm/F1.1/2m | 11.3°×8.5°/55mm/F1.1/1.5m | ||
| 6.7°×5.1°/85mm/F1.2/5m | 7.3°×5.5°/85mm/F1.2/5m | ||
| High temperature lens | |||
| Minimum focus distance | 25mm/0.4m 13mm/0.15m 55mm/2m | 25mm/0.3m 13mm/0.1m 55mm/1.5m | |
| Spatial resolution mrad | 25mm/0.99 13mm/1.84 55mm/0.45 | 25mm/0.67 13mm/1.24 55mm/0.31 | |
| LCD display | 5",1280 × 720 high brightness touch screen | ||
| The viewfinder | 1280×960 LCOS screen | ||
| Brightness contrast | Automatic/manual/lock | ||
| Image schema | Infrared/visible light/paint in pictures /MIF | ||
| Digital variable times | 1. 1 × 4 × infinitesimal variable | 1.1 10 × infinitesimal variable | |
| The palette | 8 | 10 | |
| Temperature measurement range | Gear: 1-20 ℃ ~ 150 ℃; Gear 2:15 0 ℃ ~ 800 ℃, optional 2000 ℃ |
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| Temperature measurement accuracy | ±2 ℃ or ±2% (maximum) | ±1 ℃ or ±1: take a large value (limiting temperature) ±2 ℃ or ±2% (take a large value) | |
| Point temperature measurement | 5 points | 8 points | 10 points |
| Analysis object storage | no | Analysis object can be saved with image (point, line area) | |
| Automatic tracking | Maximum or minimum temperature | Maximum or minimum temperature | |
| isotherm | Up and down | Up, down and interval | |
| Temperature alarm | Images and sounds | ||
| Image format | JPG or with raw data | ||
| Image storage | 16G internal, 16G external SD card (maximum support is 32G) | ||
| Voice comments | 60 seconds | ||
| Text annotations | Soft keyboard input | ||
| Save the image parameters | yes | ||
| Analysis report | PDF format | ||
| Report to print | Wi-fi to print | ||
| Video format | H.264 (with temperature information) | ||
| Photo storage | Manual storage | ||
| Hardware module | Visible light, 5 million, lighting, laser, WIFI, microphone (tunable), horn (tunable), electronic compass, GPS, light sensor, bluetooth (C640Pro only) | ||
| External interface | Micro USB2.0, SD card, gigabit Ethernet, tripod, Mini HDMI | ||
| Battery | Rechargeable lithium battery (UN38.3 certified); | ||
| Sleep mode | Available for 4 hours (integrated working hours) | ||
| Working temperature | -10℃~50℃ (eyepiece -10℃~40℃ ) | ||
| Storage temperature | -40℃~70℃ | ||
| vibration | 2g,IEC 60068-2-6 | ||
| Protection grade | IP54 | ||
| The weight of the | 1350g | ||
| Size | 206mm×145mm×135mm | ||