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Palmer Wahl HSI250 | Heat Spy Thermal Imaging Camera | 160 x 120, -20 to 550 °C
The HSI250 is the entry-level Heat Spy handheld thermal imaging camera, built around a 160 x 120 uncooled detector (19,200 pixels), which is higher resolution than the 80 x 60 sensors common in its class. It covers -20 to 150 °C in low range and 100 to 550 °C in high range across 8–14 μm, with a 9 Hz frame rate that allows use around the world without restriction.
Key features
- NETD below 40 mK at 25 °C
- 37.5° x 28.5° field of view, fixed focus from 150 mm
- 2.4 in, 320 x 240 LCD with black hot, white hot, rainbow and ironbow palettes
- Aiming laser and centre point cursor
- 64 GB micro SD card, built-in rechargeable lithium ion battery
- IP54 rated and drop tested from 2 m
Typical uses include electrical panel scans, motor and bearing checks, building inspection, HVAC and automotive diagnostics. NIST calibration (single centre point) is offered separately.
- Specifications
- Downloads
| Part Number | HSI250 |
| Brand | Palmer Wahl |
| Detector | Uncooled FPA, 160 x 120 |
| Temperature Ranges | -20 to 150 °C; 100 to 550 °C |
| Spectral Range | 8 to 14 μm |
| Frame Rate | 9 Hz |
| NETD | < 40 mK @ 25 °C |
| Field of View | 37.5° x 28.5° |
| Display | 2.4 in LCD, 320 x 240 |
| Storage | 64 GB micro SD |
| Protection | IP54, 2 m drop |
| Operating Temperature | -10 to 50 °C |
| Dimensions | 195 x 117 x 59 mm |
| Weight | Approx. 0.35 kg |
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