Thermal-only handheld camera with laser pointer — the lower-cost B-series option
The B21LS is the thermal-only version of the B-series handheld. It drops the visual camera the B20S carries and adds a laser pointer instead, which keeps the price down while retaining the same 256 × 192 detector, the same 640 × 480 screen and the same 550 °C ceiling. For electrical, HVAC and building work where you need the temperature and a clear thermal image rather than a fused photograph, it does the job for noticeably less.
Key features
-
256 × 192 VOx detector — NETD < 40 mK, with SuperIR upscaling captured images to 640 × 480
-
Thermal-only design — no visual camera — this is the deliberate difference from the B20S, and where the saving comes from
-
Laser pointer — marks the centre measurement point on the actual object
-
3.2" 640 × 480 display — high-resolution preview for on-site decisions
-
Wide 37.2° × 50° focus-free lens — full switchboards and wall sections in one frame, nothing to adjust
-
−20 °C to 550 °C measurement range — accuracy ±2 °C / ±2 %
-
Macro capability — with the optional HM-B201-MACRO clip-on lens, resolves detail down to 500 microns
-
Speaker and flashlight alarms — audible and visual warning when a temperature threshold is exceeded
-
Wi-Fi image transfer — to HIKMICRO Viewer; analysis and reporting in HIKMICRO Analyzer on PC
- IP54, 2 m drop, 6 hours runtime
Typical applications
- Electrical panels, breakers, busbars and cable terminations
- Preventive maintenance on motors, bearings, pumps and drives
- HVAC commissioning and fault finding
- Building envelope surveys — insulation gaps, thermal bridges, air leakage
- Underfloor heating loops and concealed pipework
- Damp, leak and water ingress tracing
- Solar PV panel and inverter inspection
- Documented condition reports for clients and insurers
Technical specifications
| Detector type |
Uncooled VOx focal plane array |
| IR resolution |
256 × 192 (49,152 pixels) |
| SuperIR |
640 × 480 on captured images |
| Thermal sensitivity (NETD) |
< 40 mK (@ 25 °C, F#=1.0) |
| Image frequency |
25 Hz |
| Field of view |
37.2° × 50.0° |
| Focus mode |
Focus free |
| Visual camera |
Not fitted — thermal only |
| Display |
3.2" LCD, 640 × 480 |
| Temperature range |
−20 °C to 550 °C |
| Accuracy |
±2 °C / ±2 % (ambient 15 °C to 35 °C, object above 0 °C) |
| Measurement presets |
Centre spot, hot spot, cold spot, user preset point |
| Laser pointer |
Yes |
| Storage media |
Built-in 16 GB |
| Image capacity |
Approx. 35,000 images |
| Connectivity |
Wi-Fi; USB-C |
| Battery |
Rechargeable Li-ion, approx. 6 hours; 3 hours to full charge |
| Protection level |
IP54 |
| Drop test height |
2 m |
In the box
- HIKMICRO B21LS thermal camera with wrist strap
- Power adapter
- USB cable
- Calibration certificate
- Quick start guide
Model information
| Brand |
HIKMICRO |
| Model |
B21LS |
| Manufacturer part number (MPN) |
HM-TP52+-3AQF/W-B21LS |
