The LBTEK USB thermoelectric laser power meter employs a thermopile sensor with series-connected thermocouples. The sensor absorbs incident laser radiation and converts it into heat. When the light source irradiates the bullseye of the thermopile detector, heat is generated. This heat is converted into an electric potential by the detector, which diffuses from the center through the passive region toward the edges, creating a potential difference between the hot and cold ends of the thermocouples. The final reading is obtained via software. It can detect continuous laser power ranging from 100 μW to 200 W. By connecting to a PC via the provided USB data cable, the software can display real-time measurement data, statistical data, and stability values. It also shows measurement curves, with up to 40,000 sample points displayed, and supports basic operations such as zooming, saving, and opening charts. The LBTEK USB thermoelectric laser power meter offers three effective detection area options: 9 mm, 22 mm, and 25 mm.

The LBTEK USB Photoelectric Laser Power Meter (without attenuator) utilizes a multi-channel photodiode sensor based on the photoelectric effect, featuring fast response time but prone to current saturation. It is suitable for measuring low-power continuous lasers. Among them, the PPM350-3000-USB is an integrating sphere power meter, offering a wider power measurement range compared to other models. Multiple power ranges are available, capable of detecting continuous lasers with power levels from 1 nW to 3 W. By connecting to a PC via the provided USB data cable, the software can display real-time measurement data, statistical data, and stability values. It also shows measurement curves with up to 40,000 sample points, supporting basic operations such as zooming, saving, and opening charts. The LBTEK USB Photoelectric Laser Power Meter (without attenuator) offers three effective detection area options: 9.5 mm, 10 mm, and 12 mm.

The LBTEK USB Photoelectric Laser Power Meter (with Attenuator) employs a multi-channel photodiode sensor based on the photoelectric effect, featuring fast response time but prone to current saturation, making it suitable for low-power continuous laser measurement. It offers multiple power range options, capable of detecting continuous lasers with power levels from 1 nW to 1 W. By connecting to a PC via the provided USB data cable, the software can display real-time measurement data, statistical data, and stability values. It also shows measurement curves with up to 40,000 sample points, allowing basic operations such as zooming, saving, and opening charts. The LBTEK USB Photoelectric Laser Power Meter (with Attenuator) provides two effective detection area options: 9.5 mm and 10 mm.