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AK121

Portable optical dissolved oxygen meter

Portable dissolved oxygen and temperature meter with a low-maintenance optical probe for aquaculture and environmental monitoring.

AK121 Portable optical dissolved oxygen meter
0.00 to 20.00 mg/LDissolved Oxygen Range
± 0.5 °CTemperature Accuracy

Key features

  • AK1030 Optical probe means accurate measurements, holds calibration longer, no stirring required, no electrodes or membranes to clean
  • Minimum maintenance required
  • Optical benefits include: no interferences from gases such as hydrogen sulphide
  • 2 points calibration: 100% air and 0 oxygen
  • Manual altitude and salinity compensation: 0 to 3500m / 0 to 45ppt
  • Automatic Temperature Compensation (−5 to 80 °C) for higher accuracy under fluctuating temperatures
  • Stability indicator
  • Hold Function momentarily freezes reading for easy viewing and recording
  • Auto-Power Off saves battery power after non -use
  • Self-Diagnostic with message codes for easy troubleshooting
  • Large custom dual LCD provides optimal viewing
  • Protective Rubber Boot shields meter from accidental knocks
  • Splash-proof and dust-resistant rated IP65 –for use under harsh environments
AK121 AK121 Max - Portable Optical Dissolved Oxygen Meter

Portable, precise, accurate and versatile Measurements

The built-in microprocessor enables advanced functions, such as automatic calibration, automatic temperature compensation, self-diagnosis, auto power-off, and low-battery indicator, and improves the response time and accuracy of your measurements.

The MAX portable Dissolved Oxygen/Temperature meter is water resistant (IP65) and feature a large LCD display that provides simultaneous D.O. and temperature readings with a resolution of 0.01 mg/L and an accuracy of ± 0.3mg/L (0 a 10.00 mg/L).

The AK1030 Optical probe with built-in temperature sensor, means accurate measurements, holds calibration longer, no stirring required, no probe or membranes to clean.

Optical dissolved oxygen sensors combine precise measurement with low maintenance to monitor the dissolved oxygen level water applications. The AK121 MAX is ideal for Aquaculture and Environmental applications.

AK121 AK121 Max - Portable Optical Dissolved Oxygen Meter

Specifications

Measurement Specifications
Parameter Range Resolution Accuracy
Dissolved Oxygen 0.00 to 20.00 mg/L 0.01 / 0.1 mg/L ± 0.3 mg/L (0.00 to 9.99 mg/L); ± 2% (10.00 to 20.0 mg/L)
0.0 to 200.0 % sat 0.1 %
DO Saturation 0.0 to 200.0 % sat 0.1 % sat ± 0.3mg/L (0.00 a 9.99 mg/L) | ± 2% (10.00 a 20.0 mg/L)
Temperature 0.0 to 50.0 °C 0.1 °C ± 0.5 °C
General Specifications
Memory 100 records
Display backlight On/Off
Operating humidity 10 to 90 % RH (non-condensing)
Protection rating IP65
Battery 3.7 VDC 3000 mAh (rechargeable)
Power adapter 9 V 1 A (110–220 VAC)
Power connector 2.5 mm jack (P4)
Dimensions 83 x 175 x 34 mm
Weight 250g
Auto power-off 10 minutes
Freezing the reading (HOLD) Manual
Charge indicator Visual
Calibration points 2 points: 100 % and 0 % saturation
Electrode operating temperature 0 to 50 °C

What's in the kit

  • Sample solution of 0% Dissolved Oxygen (20 mL)
  • Storage and transport case
  • Instruction Manual
  • AK1030-C — Optical DO/Temperature probe
  • AK1076 — 9 VDC Charger
AK121 kit contents

Accessories

Replacement parts, calibration solutions, and maintenance supplies for the AK121.

AK1060

AK1060

Rubber Sleeve for Portable Meters

Learn more
0% Dissolved Oxygen Solution (250 mL)

AK4532

0% Dissolved Oxygen Solution (250 mL)

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