DA221 Underwater Pre-Amplifier Detectors

The DA221 range of data logger compatible ultra-violet detectors comprises of an ultra-violet sensitive photodiode detector with filter glasses, diffuser and a transimpedance amplifier providing a voltage output. Each detector is sealed in a waterproof enclosure and operates from a single rail power supply.

Detectors feature key designs:

  • Fully submersible up to 10 meters
  • Cosine response
  • Aluminium body with resistant anodising
  • High stability silicon photodiodes
  • Internal resistor adjustable for annual recalibration
  • Internal resistor adjustable for zero offset bias

DA221 Brochure