Highly sensitive germanium APD-based photodetector-21VA of intermediate accuracy has a built-in secondary power supply (SPS) and several mounting options.

Highly sensitive germanium APD-based photodetector-21VT of intermediate accuracy has a built-in secondary power supply (SPS), several mounting options and an extended temperature range.

Highly sensitive germanium APD-based photodetector-26 of intermediate accuracy has a built-in secondary power supply (SPS) with a reduced input voltage.

Highly sensitive germanium APD-based photodetector-29 of intermediate accuracy has a built-in secondary power supply (SPS) with an increased input voltage, built-in illumination and optical functional checkout.

Highly sensitive germanium APD-based photodetector-32 of intermediate accuracy.

Photodetector-34 of intermediate accuracy based on an avalanche-free photodiode has a miniature design.

InGaAs APD-based photodetector-34 of intermediate accuracy has high sensitivity, automatic adjustment to the background level, and built-in SPS.

Photoreceiving laser ranging module-13CM of particular accuracy is based on a temperature-controlled InGaAs APD.