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HYDROLAB is a leading US manufacturer that introduced the first Multi-Parameter Sonde to the world in 1968. For more than 45 years, Hydrolab has designed and manufactured multi-parameter sondes for water quality monitoring in the environment. Hydrolab is now part of the Hach Hydromet and OTT Hydromet family.

At the heart of Hydrolab multi-probes is our superior sensor technology, which ensures that the important data you collect is solid, reliable, and dependable. In addition, our sensors are built to last, and comes packaged in a rugged, non-corrosivehousing so your total cost of ownership is ultimately the lowest in the industry.

Basic Quanta Display


Basic Quanta Display


In developing the Quanta, the Hydrolab engineering team thoroughly analyzed our current and past instruments and incorporated the best designs from each into the Quanta. By combining state of the art technology, designs proven by 35 years of experience, and modern manufacturing principles, Campbell Scientific is able to offer Hydrolab's sleek, high-performance Quanta at a fraction of the cost of other professional-grade instruments. A Quanta system is composed of three components: the Quanta transmitter, the Quanta display, and a connecting cable.


Quanta Transmitter

  • Diameter: 7.6 cm (3 in)
  • Length: 22.9 cm (9 in)
  • Weight: 1.3 kg (3lbs)

Quanta Display

  • Screen Size:8.9 cm(3.5 in diagonal)
  • Weight (with batteries): 0.95 kg (2.1 lbs)
  • Memory: 100 data frames (1 frame can store all parameter values)
  • Operating Temperature: -5°C to 50°C
  • Batteries: 3 "C" size batteries
  • Battery Life: 12 Hours Low battery indicator
  • NEMA 6 rated (waterproof)

Performance Specifications

ParameterRange       AccuracyResolution
Temperature-5°C to 50°C± 0.20°C0.01° C
DO0 to 20 mg/l±0.2 mg/l0.01 mg/l
Specific Conductance0 – 100 mS/cm± 1% of reading ±1 count4 digits
pH2 to 12± 0.20.01
ORP-999 to 999 mV± 25 mV1 mV

Depth 0-25

Depth 0-100

0 to 25 m

0 to 100 m

± 0.1 m

± 0.3 m

0.1 m
Vented level0 to 10 m±0.003 m0.001 m
Salinity0 to 70 PSS± 1% of reading ±1 count0.01 PSS
Turbidity0 - 1000 NTU± 5% of reading ±1 NTU0.01 NTU


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