• 192×192 Infrared Sensor — Capture crisp thermal images with a compact sensor that reveals hotspots and cold spots faster than visual inspection alone, so you diagnose problems quickly.
• 5 Color Imaging System & Multiple Palettes — Switch palettes to highlight temperature contrasts for easier interpretation across electrical, HVAC, plumbing, and automotive inspections.
• Fast Spot Measurement Mode — Instant temperature readouts on key points (hotspot/coldspot), saving time during troubleshooting and enabling confident decisions on-site.
• Multi-Mode Temperature Measurement — Supports point, area, and max/min measurements so professionals can adapt the tool to diverse inspection tasks.
• 1-Meter Practical Measuring Range — Designed for safe, accurate readings from a convenient working distance during routine maintenance and diagnostics.
• User-Friendly 2-in-1 Interface — Intuitive controls and a simple USB/data transfer option make saving, reviewing, and sharing images effortless for reporting and collaboration.
• Durable, Ergonomic Handheld Design — Comfortable grip and rugged housing let technicians work for longer without fatigue and handle typical field conditions.
• Versatile Use Cases — Ideal for electrical panel inspections, HVAC leak detection, building diagnostics, automotive troubleshooting, and preventive maintenance.
• Quick Image/Video Capture & Storage — Record thermal stills or short video clips to document findings and speed up post-inspection analysis and reporting.
• Adjustable Emissivity & Calibration Options — Fine-tune readings for different materials to increase measurement reliability across varied surfaces.

• Resolution : 120*90
• Working band : 8~14um
• Frame rate : 25Hz
• NETD : <60mK@25°C
• Field angle : H=38° V=50°
• Emissivity : 0.01-0.99
• Temperature measurementrange : Low temperature:-20 to 160°CHigh
  temporature:160-550°C
• Temperature measurement
  accuracy : ±2°C or ±2% of the reading
• Screen size : 2.8 inches
• Palette : lron red, white heat, black heat, rainbow.red
  heat, high contrast, green heat and lava
• Temperature measurement : Support full-screen temperature measurementof
  highest/lowestcenter point and mild reglon 

General：

• Laser level : Class ll
• Language : Chinese(Simplified).Chinese(Traditional),English,French,German,Spanish,Russian,Dutch,Japanese,Korean andArablan
• Interface : USB Type-C(support charging and datatransmission)
• Battery : 2600mAh lithium battery
• Capacity  8G internal memory
• Picture storage format : JPG
• Video format : MP4
• Working time : 4 hours if the battery is fully charged
• Working temperature : -10~50°C
• Storage uretemperat : -40~85°C
• Net weight : 300g
• Size : 219 x72x66mm

1. Datasheet - NF-B522 INFRARED THERMAL IMAGER