UV Transmittance Monitor
The PearlSense T254 transmittance monitor provides UV transmittance readings in all conditions over an extended lifetime. It features a patent-pending fixed-position single lamp and sensor design with an automatic two-point reference check, and can withstand unlimited cycling without lamp degradation. A UV-LED light source allows instant activation and mercury-free operation. The monitor is capable of battery and solar-powered operation, and can be used in handheld operation, installed directly in a pipe or bracket-mounted in an open-channel environment.