The Testo 875 infrared thermal imager offers 160×120 resolution and <0.08 °C sensitivity for electrical system maintenance.
The Testo 875 infrared thermal imager is designed for electrical system maintenance and fault detection. It helps identify poor contacts, aging components, and overloads before they cause costly downtime or fire hazards.
Key features include a 160×120 infrared detector, optional Super‑pixel upgrade to 320×240, high thermal sensitivity (<0.08 °C), selectable temperature ranges, and a 3.5" high‑resolution LCD display. The device supports both wide‑angle and long‑focus lenses for flexible measurement distances. This manual is written in Chinese.
| Infrared pixel resolution | 160 × 120 |
|---|---|
| Super‑pixel upgrade resolution | 320 × 240 |
| Temperature measurement range | -20 °C ~ +100 °C / 0 °C ~ +280 °C (switchable) |
| Measurement accuracy | ±2 % mv, ±2 °C |
| Detector type | Focal‑plane, uncooled micro‑bolometer (FPA) |
| Display | 3.5" high‑resolution LCD |
It can measure from –20 °C to +100 °C, or from 0 °C to +280 °C when switched.
The standard detector resolution is 160 × 120 pixels, with an optional upgrade to 320 × 240 pixels.