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SKU: DO220-K
Weight: 2,500.00g

Price: 940.10‎€
Ex Tax: 790.00‎€

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The Laqua DO212 handheld meter is a high-quality handheld meter for dissolved oxygen with integrated data memory. The device offers numerous setting and diagnostic functions. The model Laqua DO220 is characterized by GLP compliance, real-time clock with date & time stamp as well as a large internal memory and by the possibility of data exchange with the computer. The meter is particularly robust, waterproof (IP67) and ideal for use even in the harshest conditions. Made in Japan - highest reliability and quality.


  • Measures dissolved oxygen (DO) concentration in ppm (mg/L) and % saturation.
  • 0.01 mg/L or 0.1% DO resolution
  • Compensates salinity, temperature and air pressure.
  • Allows up to 2 calibration points with galvanic DO electrode
  • °C & °F temperature measurements
  • With real-time clock and date/time stamp for GLP compliance
  • Automatic logging of data; the built-in memory can store up to 1000 data.
  • Auto-stability, auto-hold and real-time measurement modes
  • Automatic shutdown (programmable: up to 30 minutes)
  • Built-in electrode holder enables the attachment of 2 electrodes
  • Monochrome LCD with white LED backlight: 50 x 50 mm
  • Phono jack output for connecting the device to the computer via a PC (USB) cable for data transfer and software updating and to the printer via a printer (RS232) cable for printing.
  • The case is IP67 waterproof / dustproof, shockproof, scratchproof, anti-slip.
  • Powered by 2 x AA batteries
  • Packed with galvanic electrode in carrying case
  • 3 years warranty on device, 6 months warranty on probe

Technical specifications

Measuring Range:
0.0 to 20.00 mg/L
0.0 to 200.0 %
0.01 mg/L, 0.1%
± 0.1 mg/L
Salinity compensation:
0.0 to 40.0 ppt
Barometric pressure compensation:
Temp. compensation:
Probe type:
Galvanically integrated with temperature sensor
Up to 2 points
Temperature range:
-30.0 to 130,0 °C / -22.0 to 266.0 °F
0.1 °C / F
± 0.5 °C / ± 0.9 °F 
Calibration option:
Automatic data log:
Real time clock:
Measuring modes:
Auto stable, Auto hold, Auto hold, Real time
Automatic shutdown:
Yes (programmable: up to 30 minutes)
Electrode status:
Yes (On Screen Display)
Diagnostic messages:
Software upgrade:
Yes via PC (USB) cable PN 3200779639
PC communication:
Yes via PC (USB) cable PN 3200779639
Printer communication:
Yes via printer (RS232) Cable PN 3200779638
Measurement inputs:
BNC (for pH electrode), Phono (for temperature sensor)
Device output:
Phono (for PC/printer connection)
LCD-Display with backlight
IP67, shock and scratch resistant, anti-slip
Supply voltage:
2 x AA batteries
Battery life:
> 500 hours
Dimensions / Weight:
160 (L) x 80 (W) x 40.60 (H) mm, approx. 260 g (with batteries) / 216 g (without batteries), device only


LAQUA DO220 instrument, galvanic DO probe with integrated temperature sensor, 2m cable (9552-20D), batteries, calibration standards, carrying case