HYDROLAB Surveyor HL.

The Surveyor HL is a compact rugged handheld display for real time data viewing, storage, calibration and configuration of sondes. The color screen is visible in direct sunlight and a keypad with pronounced buttons aids system navigation. The Surveyor HL is powered by a rechargeable lithium-ion battery that holds enough energy to power a HYDROLAB HL4 for 10 continuous hours.