HIKMICRO B21L is designed for temperature measurement to find invisible faults. It’s equipped with a 256 × 192
high-resolution thermal detector, giving you enhanced details for your inspection. The thermography ranges from
-20°C to 550°C (-4°F to 1022°F), which meets the most situation. It helps the staff to quickly find the fault according
to accurate temperature measurements of high-temperature targets in the environment. Meanwhile, it provides
assistance decisions and ensures safety. The device is mainly applied to various industries, such as Building,
HVAC, auto industry, etc.

Specification
Infrared Image
IR Resolution 256 × 192 (49,152 pixels)
SuperIR Yes, on captured thermal images
NETD < 40 mK (@ 25 °C, F#=1.0)
Image Frequency 25 Hz
Detector Pitch 12 μm
Spectral Range 7.5 to 14 μm
Focal Length 3.6 mm
F-number F1.0
Field of View (FOV) 37.2° × 50.0°
Spatial Resolution (IFOV) 3.3 mrad
Min. Focus Distance 0.3 m (0.98 ft)
Focus Mode Focus Free
Image Display
Display 240 × 320 Resolution, 3.2”LCD Screen
Color Palettes White Hot, Black Hot, Rainbow, Ironbow
Color Alarm Above alarm
Image Modes Thermal
Measurement and Analysis
Object Temperature Range -20°C to 550°C (-4°F to 1022°F)
Accuracy
Max. (± 2°C/3.6°F, ± 2%), for ambient temperature 15°C to 35°C (59°F to 95°F)
and object temperature above 0°C (32°F)
Measurement Tools
Center Spot, Hot Spot, Cold Spot
User-definable: 3 spots
Level and Span Mode Auto/Manual
Data Storage and Communication
Storage Media Built-in 16 GB flash memory
Image Storage Capacity Approx. 90,000 Images
General
Wi-Fi 802.11 b/g/n (2.4 GHz)
USB Interface USB Type-C
Battery Type Rechargeable Li-ion battery
Battery Operating Time Approx. 6 hours
Battery Charging Time Approx. 3 hours fully charged
Protection Level IP54
Drop Test Height 2 m (6.56 ft)
Working Temperature Range -10°C to 50°C (14°F to 122°F)
Storage Temperature Range -20°C to 60°C (-4°F to 140°F)
Relative Humidity < 95% non-condensing
Weight Approx. 380 g (0.84 lb)
Dimension 221.7 mm × 73.5 mm × 123.8 mm (8.73’’ × 2.89’’ × 4.87’’)
Tripod Mounting UNC ¼”-20
Laser Yes, Class II