Handheld comms


Surveyor HL Handheld Display

The Surveyor HL Handheld Display is a handheld display unit designed to connect to the Hydrolab range of water quality instruments including:

Hydrolab HL4
Hydrolab HL7

Perfect for attended monitoring applications and for completing other common tasks with the sonde in the field, the Surveyor HL Handheld Display is a rugged and compact with a color screen, that is visible in direct sunlight, and a keypad with pronounced buttons for system navigation.

The Surveyor HL Handheld Display incorporates the same menu structure as the Hydrolab Operating Software to make it easy to use and provide feedback about the system’s status and access to onboard metadata.

The Surveyor HL Handheld Display is powered by a rechargeable lithium-ion battery that holds enough energy to power a Hydrolab HL4 for 10 continuous hours.

The Surveyor HL Handheld Display supercedes the older Surveyor 4.

  • Fully IP67 enclosure with hand strap and rubberized case for optimal grip
  • Threaded connector to securely attach the sonde deployment cable
  • Color LCD 3.5 inch QVGA display visible in direct sunlight
  • Rechargeable lithium-ion battery that can power an HL4 for 10 continuous hours

Graphical display
– Color, LCD 3.5″ QVGA
– Transflective (readable in direct sunlight)
Power supply
– Lithium-ion rechargeable
– Battery life: up to 10 hours continuosly on
(20 °C)
– Handheld meter: IP67
Positively buoyant in water
– L x W x H: 21.8 cm x 9.4 cm x 5.3 cm
(8.6 in. x 3.7 in. x 2.1 in.)
– Weight: 0.68 kg (1.5 lbs)
Operating temperature
–5 to 50 °C (23 to 122 °F)


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