Compact and rugged, this pocket-sized thermal imager features 160 x 120 pixel resolution and a 40 x 30° field of view Furthermore, it measures 14 to 1022°F (-10 to 550°C) at 25 Hz, while connecting wirelessly to a compatible thermohygrometer and clamp meter, simplifying documentation and increasing confidence.
Compact and rugged, this pocket-sized thermal imager features 160 x 120 pixel resolution and a 40 x 30° field of view Furthermore, it measures 14 to 1022°F (-10 to 550°C) at 25 Hz, while connecting wirelessly to a compatible thermohygrometer and clamp meter, simplifying documentation and increasing confidence.
The Testo 862 delivers fast thermal insights instantly and with ease. Its compact design makes it the ideal tool for quick spot checks across HVAC/R, industrial maintenance, facility management, and building applications. High resolution and strong thermal sensitivity provide clear, detailed thermal images, while Fusion adds visual context for easier interpretation.
For greater efficiency in the field, smart features such as alarm function, automatic Delta T calculation, and intelligent mold detection support faster and more reliable decisions during inspections. Seamless connectivity to the Testo 605i thermohygrometer and Testo 770-3 clamp meter adds further confidence while also streamlining documentation. With IP54 protection and 5' (1.5 m) drop resistance, the Testo 862 is designed for tough environments on the job.
Features
Applications
| Infrared Resolution | 160 x 120 pixels |
| Thermal Sensitivity (NETD) | < 50 mK at 77°F (25°C) |
| Field of View (FOV) | 40° x 30° |
| Geometric Resolution (IFOV) | 4.62 mrad |
| Image Refresh Rate | 25 Hz |
| Focus | Focus type: fixed focus Minimum focusing distance: 10" (25 cm) |
| Spectral Range | 8 to 14 μm |
| Visual Camera | Visual resolution: 2 MP Minimum object distance: 8" (20 cm) |
| Measurement Range | 14 to 1022°F (-10 to 550°C) |
| Accuracy | ±3.6°F (±2°C) / ±2% of m.v. (at 70 to 77°F (21 to 25°C) ambient temperature) |
| Emissivity/Reflected Temperature Adjustment | 0.01 to 1 |
| Functions | Analysis functions: hot spot, cold spot, DeltaHeat, delta T, 5 adjustable spots, 3 regions of interest Application-specific measurement functions: DeltaHeat, humidity mode |
| Humidity Mode | Manual: yes Humidity measurement with humidity probe (optional): automatic transfer of the optional Testo 605i thermohygrometer readings via Bluetooth directly to Testo 862 |
| Electrical Mode | Manual: yes Electrical measurement with clamp meter: automatic reading transfer of the optional Testo 770-3 clamp meter via Bluetooth directly to Testo 862 |
| Image Presentation | Image modes: IR / visual / Fusion / picture in picture / humidity mode Video mode: non-radiometric video recording in instrument (AVI) Fullscreen: yes Color palettes: iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HT, humidity palette Digital zoom: yes (maximum zoom: 4x) |
| Storage | File format: bmt, jpg Image storage capacity: 12 GB available for user |
| Power | Battery type: integrated Li-ion rechargeable battery Battery life: 3 hours at 77°F (25°C) Charging interface: USB-C Charging time: approx. 170 minutes; 15-minute charge of an empty battery equals 25 minutes of operation |
| Environmental Conditions | Operating temperature: 14 to 122°F (-10 to 50°C) Storage temperature: -4 to 158°F (-20 to 70°C) Air humidity: 5 to 95% RH, non-condensing |
| Protection | Housing protection class (IEC 60529): IP54 Impact resistance test: 5' (1.5 m) Device shock: IEC 60068-2-27 with 30 g Packaging vibration: ISO 2247:2000-03 |
| Tripod Socket | 1/4" (6.35 mm) UNC thread |
| Compatibility | External probes: Testo 605i thermohygrometer, Testo 770-3 clamp meter Testo Smart App: availability expected in 2027 PC software Testo IRSoft: yes, free of charge |
| Data Interfaces | USB: USB-C WLAN: communication with the Testo Smart App (expected 2027); IEEE 802.11b/g/n Bluetooth: peer-to-peer for fast connection set-up, Testo 605i, Testo 770-3 |
| Dimensions | 5.3 x 3.5 x 1" (135 x 88 x 25 mm) |
| Weight | 7.6 oz (215 g), thermal imager only (no lanyard or bag) |
Click on a category to view a selection of compatible accessories with the Testo 862-1 Thermal Imager, 160 x 120 pixels, 40 x 30°.
| Infrared Resolution | 160 x 120 pixels |
| Thermal Sensitivity (NETD) | < 50 mK at 77°F (25°C) |
| Field of View (FOV) | 40° x 30° |
| Geometric Resolution (IFOV) | 4.62 mrad |
| Image Refresh Rate | 25 Hz |
| Focus | Focus type: fixed focus Minimum focusing distance: 10" (25 cm) |
| Spectral Range | 8 to 14 μm |
| Visual Camera | Visual resolution: 2 MP Minimum object distance: 8" (20 cm) |
| Measurement Range | 14 to 1022°F (-10 to 550°C) |
| Accuracy | ±3.6°F (±2°C) / ±2% of m.v. (at 70 to 77°F (21 to 25°C) ambient temperature) |
| Emissivity/Reflected Temperature Adjustment | 0.01 to 1 |
| Functions | Analysis functions: hot spot, cold spot, DeltaHeat, delta T, 5 adjustable spots, 3 regions of interest Application-specific measurement functions: DeltaHeat, humidity mode |
| Humidity Mode | Manual: yes Humidity measurement with humidity probe (optional): automatic transfer of the optional Testo 605i thermohygrometer readings via Bluetooth directly to Testo 862 |
| Electrical Mode | Manual: yes Electrical measurement with clamp meter: automatic reading transfer of the optional Testo 770-3 clamp meter via Bluetooth directly to Testo 862 |
| Image Presentation | Image modes: IR / visual / Fusion / picture in picture / humidity mode Video mode: non-radiometric video recording in instrument (AVI) Fullscreen: yes Color palettes: iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HT, humidity palette Digital zoom: yes (maximum zoom: 4x) |
| Storage | File format: bmt, jpg Image storage capacity: 12 GB available for user |
| Power | Battery type: integrated Li-ion rechargeable battery Battery life: 3 hours at 77°F (25°C) Charging interface: USB-C Charging time: approx. 170 minutes; 15-minute charge of an empty battery equals 25 minutes of operation |
| Environmental Conditions | Operating temperature: 14 to 122°F (-10 to 50°C) Storage temperature: -4 to 158°F (-20 to 70°C) Air humidity: 5 to 95% RH, non-condensing |
| Protection | Housing protection class (IEC 60529): IP54 Impact resistance test: 5' (1.5 m) Device shock: IEC 60068-2-27 with 30 g Packaging vibration: ISO 2247:2000-03 |
| Tripod Socket | 1/4" (6.35 mm) UNC thread |
| Compatibility | External probes: Testo 605i thermohygrometer, Testo 770-3 clamp meter Testo Smart App: availability expected in 2027 PC software Testo IRSoft: yes, free of charge |
| Data Interfaces | USB: USB-C WLAN: communication with the Testo Smart App (expected 2027); IEEE 802.11b/g/n Bluetooth: peer-to-peer for fast connection set-up, Testo 605i, Testo 770-3 |
| Dimensions | 5.3 x 3.5 x 1" (135 x 88 x 25 mm) |
| Weight | 7.6 oz (215 g), thermal imager only (no lanyard or bag) |
Click on a category to view a selection of compatible accessories with the Testo 862-1 Thermal Imager, 160 x 120 pixels, 40 x 30°.
