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YSI Meters
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YSI Meters

 
ysi55 YSI 55 Dissolved Oxygen Meter
The YSI 55 is our most popular meter. It features easy push button calibration, a probe storage chamber and a wide screen that displays oxygen and temperature at the same time. They read in mg/l and percent oxygen and offer built in altitude(0-10000) and salinity compensation (0-40ppt). The large backlit display is easy to read in sunlight or darkness. The 55 runs off of 6AA batteries ,expect an average of 300 hours of use from the batteries. The display has a low battery indicator on it to let you know when the batteries are low. This Model of the 55 does not have a removable cord and probe they must be sent back to us for repair. The YSI55D has a detachable cable that makes replacing the cord easy to do in the field. The 55 has a 2 year warranty on the meter and a 1 year warranty on the probe cable assembly. Made in the USA.
Part #  Description  Wt  Price 
YSI5512  Meter/12ft cable 4 lbs  658.00 
YSI5525  Meter/25ft cable 4 lbs  689.00 
YSI5550  Meter/50ft cable 6 lbs  749.00 
YSI55 Case  Carrying Case 3 lbs  47.00 
YSI5775  Membrane Kit 1lb  22.00 
YSI55D  Meter only 2 lbs  428.00 
YSI55D12  12' cable 2 lbs  327.00 
YSI55D25  25' cable 3 lbs  351.00 
YSI55D50  50' cable 4 lbs  409.00 

YSI 55 Meter/12ft cable YSI5512 $658.00
YSI 55 Meter/25ft cable YSI5525 $689.00
YSI 55 Meter/50ft cable YSI5550 $749.00
YSI 55 Carrying Case YSI55 $47.00
YSI 55 Membrane Kit YSI5775 $22.00
YSI 55 Meter only YSI55D $428.00
YSI 55 12' cable YSI55D12 $327.00
YSI 55 25' cable YSI55D25 $351.00
YSI 55 50' cable YSI55D50 $409.00
 
ysi550a.jpg YSI 550-A Dissolved Oxygen Meter
Waterproof to 1 meter
2000 hour battery life
Completely waterproof
Rugged field use cable

This meter is extremely field rugged and sets the standard for aquaculture D.O measurement. It is completely waterproof to 1 meter (IP67 rated), impact resistant and measures dissolved oxygen to 50 mg/L and 500% saturation. It features a field replaceable, polargraphic D.O module that is weighted for quick sinking, easy-to-replace cap membranes, push button calibration and temperature, salinity (0 to 70ppt) and alltitude to 10000 feet compensation. The large backlit display shows oxygen and temp at the same time. Temperature can be changed between F and C. Runs off 4 C batteries.


 
D.O Range:
   0 to 500% air saturation
   0 to 50 mg/L

Resolution:
  .1% air; .01 mg/L

Accuracy:
   2% air; .3 mg/L

Temperature Range:
  -5 to 45 degrees C

YSI 550-A Dissolved Oxygen Meter
Part#  Description  Wt  Price 
YSI550A12  meter/12ft cable 7lbs  755.00 
YSI550A25  meter/25 ft cable 10lbs  795.00 
YSI550A50  meter/50 ftc able 11lbs  838.00 
YSI550A100  meter/100 ft cable 12lbs  878.00 
YSI5908  membrane kit .2lbs  45.00 
YSI559  replace able probe 1lb  151.50 
YSI5060  carrying case 3lbs  100.00 
YSI5085  hands free harness 1lb  25.00 

YSI 550-A meter/12ft cable YSI550A12 $775.00
YSI 550-A meter/25 ft cable YSI550A25 $795.00
YSI 550-A meter/50 ft cable YSI550A50 $838.00
YSI 550-A meter/100 ft cable YSI550A100 $878.00
YSI 550-A membrane kit YSI5908 $45.00
YSI 550-A replaceable probe YSI559 $151.50
YSI 550-A carrying case YSI5060 $100.00
YSI 550-A hands free harness YSI5085 $25.00
 
ysi85.jpg YSI 85 Multifunction Meter
The YSI 85 meter measures dissolved oxygen, conductivity, salinity and temperature. The meter features a combination dissolved oxygen/conductivity probe. They are also offered in detachable models.

The digital display is backlit and simultaneously shows temperature with a choice of dissolved oxygen, conductivity and salinity. The 85’s internal memory is capable of storing 50 sets of data and automatic function check verifies meter is working correctly. The 85 is equipped with automatic temperature and salinity compensation for D.O
readings. The 85 runs for 180 hours on 6 AA batteries.

The meter has a 2 year warranity and probe and cable 1 year.

D.O Range:
    0-20 mg/L
    0-200% air saturation
    +2% accuracy
Conductivity Range:
    0-499.9uS/cm
    0-4999uS/cm
    0-49.99mS/cm
    0-200mS/cm
Salinity Range
    0-80ppt
Temperature Range
    -5 to 65 C
Response Time
    90% in 10 seconds
    95% in 15 seconds

 
YSI 85 Multifunction Meter
Part#  Description  Wt  Price 
YSI8510  meter/10 ft cable 4lbs  1178.00 
YSI8525  meter/25 ft cable 4lbs  1210.00 
YSI8550  meter/50 ft cable 6lbs  1261.00 
YSI85100  meter/100 ft cable  10lbs  1320.00 
YSI8510D  10 ft cable 1lb  497.00 
YSI8525D  25 ft cable 2lbs  540.00 
YSI8550D  50 ft cable 3lbs  556.00 
YSI85D100  100 ft cable 7lbs  648.00 
YSI85D  meter only 3lbs  809.00 
YSI5906  membrane kit 1lb  45.00 

YSI 85 meter/10 ft cable YSI8510 $1,178.00
YSI 85 meter/25 ft cable YSI8525 $1,210.00
YSI 85 meter/50 ft cable YSI8550 $1,261.00
YSI 85 meter/100 ft cable YSI85100 $1,320.00
YSI 85 10 ft cable YSI8510D $497.00
YSI 85 25 ft cable YSI8525D $540.00
YSI 85 50 ft cable YSI8550D $556.00
YSI 85 100 ft cable YSI85D100 $648.00
YSI 85 meter only YSI85D $809.00
YSI 85 membrane kit YSI5906 $45.00
 
ysi52.jpg YSI 52 Dissolved Oxygen Meter
The YSI 52 is a digital meter that displays both D.O and temperature readings at the same time. The 52 has a RS232 port so that 70 readings can be downloaded to a computer. The oxygen range is 0-19.99 mg/Lwith an accuracy of +.02 mg/L and manually adjusted salinity correction.The 52 will run for a 100 hours on 6 D batteries. Probe and cable are not included in the price. D.O Range
     0-20 mg/L
     0-200% air saturation
     +2% accuracy
Conductivity Range
     0-499.9uS/cm
     0-4999uS/cm
     0-49.99mS/cm
     0-200mS/cm
Salinity Range
     0-80ppt
Temperature Range
     -5 to 65 C
Response Time
     90% in 10 seconds
     95% in 15 seconds

 
YSI 52 Dissolved Oxygen Meter
Part#  Description  Wt  Price 
YSI52  52 meter  5lbs  1319.00 

YSI 52 Dissolved Oxygen Meter YSI52 $1,319.00
 
ysi58.jpg YSI 58 Dissolved Oxygen Meter

The YSI 58 is a digital meter that features percent saturation and .01 mg/L readability, manual salinity correction, a recorder output, BOD circuitry and 115V or 220V power adapter. D.O accuracy is .03 mg/L and temperature range is -5 to 45C 4 D batteries will run the unit for 100 hours.
Probe and cable are not included in the price.
YSI 58 Dissolved Oxygen Meter
Part#  Description  Wt  Price 
YSI58  58 meter  5 lbs  1640.00 
YSI574010  10 ft cable 1 lb 175.00 
YSI574025  25 ft cable 2 lb 215.00 
YSI574050  50 ft cable 4 lbs 245.00 
YSI5740100  100 ft cable 8 lbs 321.00 
YSI5739  probe  1 lb 284.00 
YSI5718  probe/12 ft cable  2 lbs 331.00 
YSI5775  membrane kit 1 lb 22.00 
YSI5793  1501 mil mem 1 lb 65.00 
YSI5794  150.5 mil mem 1 lb 65.00 
YSI5905  BOD probe 2lbs  638.00 
YSI5906  BOD membrane 1 lb 42.00 

YSI 58 meter YSI58 $1,640.00
YSI 58 10 ft cable YSI574010 $175.00
YSI 58 25 ft cable YSI574025 $215.00
YSI 58 50 ft cable YSI574050 $245.00
YSI 58 100 ft cable YSI5740100 $321.00
YSI 58 probe YSI5739 $284.00
YSI 58 probe/12 ft cable YSI5718 $331.00
YSI 58 membrane kit YSI5775 $22.00
YSI 58 1501 mil membrane YSI5793 $65.00
YSI 58 150.5 mil membrane YSI5794 $65.00
YSI 58 BOD probe YSI5905 $638.00
YSI 58 BOD membrane YSI5906 $42.00
 
ysido200.jpg YSI DO 200 meter
The DO200 is an economical DO meter for light use. The rugged housing is IP65 splash resistant.The large display shows oxygen and temperature readings at the same time. The easy to replace membrane caps require less stirring. Nine volt battery life is usually 450 hours, indicator shows when battery is low. The meter has a detachable cable probe assembly.

Meter has one year warranity and 6 month warranity on probe cable assembly.

Range
0-20 mg/L
0-200% sat
-5 to 45C
Resolution
.1 mg/L
.1% sat
.1 C
Accuracy
.2%
.2%
.3C

 
YSI DO200
Part#  Description  Wt  Price 
YSIDO200  DO 200 meter 2 lbs 228.00 
YSI2004  4 m cable  2 lbs 247.00 
YSI20010  10 m cable 4 lbs 280.00 
YSI5908  membrane kit 1 lb 45.00 
YSI200BOD  BOD Probe 2 lbs 648.00 

YSI DO200 DO 200 meter YSIDO200 $228.00
YSI DO200 4 m cable YSI2004 $247.00
YSI DO200 10 m cable YSI20010 $280.00
YSI DO200 membrane kit YSI5908 $45.00
YSI DO200 BOD Probe YSI200BOD $648.00
 
ysi63.jpg YSI 63 pH/Conductivity Meter

The YSI 63 is a pH and conductivity meter. It is ideal for field and lab use and has internal memory to store up to 50 readings. The meter features a large backlit display that is easy to see under any conditions. Ranges are pH 0-14, Temperature -5 to 75 C, Conductivity 0-4999uS/cm and Salinity 0- 80ppt.


Part#  Description  Wt  Price 
YSI6310  meter 10 ft cable 4 lbs  1130.00 
YSI6325  meter 25 ft cable 5 lbs  1205.00 
YSI6350  meter 50 ft cable 6 lbs  1275.00 
YSI63100  meter 100 ft cable 8 lbs  1375.00 



YSI 63 meter 10 ft cable YSI6310 $1,012.00
YSI 63 meter 25 ft cable YSI6325 $1,085.00
YSI 63 meter 50 ft cable YSI6350 $1,225.00
YSI 63 meter 100 ft cable YSI63100 $1,325.00
 
ysiph100.jpg YSI pH100
The YSI pH100 measures pH and temperature quickly and accurately. The meter will read orp but requires a seperate probe. The electrode offset recognition function displays electrode efficency and tells you when it is time to replace the electrode. Features include internal buffer recognition, auto/manual temperature compensation, large display that displays pH or mV and temperature at the same time. The meter has 2 point calibration and runs on 9 volt batteries.
YSI pH100
Part#  Description  Wt  Price 
YSI1000  Meter  2 lbs 214.00 
YSI1001  3 ft cable 2 lbs 99.00 
YSI1004  12 ft cable 4 lbs 125.00 
YSI1101  pH electrode  1 lb 50.00 
YSI1201  Temp probe 2 lbs 39.00 
YSI1251  ORP electrode 2 lbs 62.00 
YSI1111  Double junc. probe 2 lbs 98.00 
YSI1122  flatglass probe 2 lbs 98.00 

YSI pH100 Meter YSI1000 $214.00
YSI pH100 3 ft cable YSI1001 $99.00
YSI pH100 12 ft cable YSI1004 $125.00
YSI pH100 pH electrode YSI1101 $50.00
YSI pH100 Temp probe YSI1201 $39.00
YSI pH100 ORP electrode YSI1251 $62.00
YSI pH100 Doublejunc.pro YSI1111 $98.00
YSI pH100 flat glass probe YSI1122 $98.00
 
ysi30 YSI 30 Salinity/Conductivity/Temperature

The YSI 30 is suited for both field and lab use. The large backlit display makes reading numbers easy under any conditions. It is waterproof and floats if dropped in the water. The display shows temperature in C along with temperature compensated conductivity (micro-ohms) and salinity in ppt. Accuracy is .5percent conductivity, .1ppt salinity and .1 C temperature. Calibration is done with the push of a button. Meter runs 100 hours on 6 AA batteries.The meter has a 2 year warranity and 1 year warranity on probe.
YSI 30 Salinity/Conductivity/Temperature
Part#  Description  Wt  Price 
YSI3010  meter 10 ft cable 4 lbs  690.00 
YSI3025  meter 25 ft cable 5 lbs  725.00 
YSI3050  meter 50 ft cable 6 lbs  760.00 
YSI3167  1000 s/cm 1pt 2 lbs   18.00 
YSI3168  10000 s/cm1pt  2 lbs   18.00 
YSI3169  50000 s/cm 1pt 2 lbs   18.00 

YSI 30 meter 10 ft cable YSI3010 $690.00
YSI 30 meter 25 ft cable YSI3025 $725.00
YSI 30 meter 50 ft cable YSI3050 $760.00
YSI 30 1000 s/cm 1pt YSI3167 $18.00
YSI 30 10000 s/cm1pt YSI3168 $18.00
YSI 30 50000 s/cm 1pt YSI3169 $18.00
 
ysi556.jpg YSI 556 Multiprobe System
Rugged and reliable, this multiprobe system combines the versitility of an easy to use handheld unit with functionality of a multi parameter system. Featuring an IP67 waterproof case, the YSI 556 MPS simultainesouly measures dissolved oxygen, pH, salinity, conductivity, temperature and ORP. The 556 offers 1,2 or 3 point pH calibration.
The meter is powered by four C batteries or an optional rechargeable battery pack with fast charge feature. An optional internal barometer can be user calibrated and displayed along with other data. The 556 comes standard with a soft sided carrying case that has enough space for the meter, a 20 meter cable and calibration supplies.
  • Field-replaceable D.O, pH and
  • ORP probes
  • Compatable with Ecowatch for
  • Windows software.
  • Internal memory has 35 file
  • names and stores over 49000 setpoints
  • Three-year warranity on meter,
  • one year on probe

  •  
    Part#  Description  Wt  Price 
    YSI5561  556 meter 4 lbs  1625.00 
    YSI5562  556 meter/bar 4 lbs  1799.00 
    YSI55634  4 meter cable 5 lbs  940.00 
    YSI556310  10 meter cable 7 lbs  990.00 
    YSI556320  20 meter cable 10 lbs  1120.00 
    YSI5564  pH kit  1 lb  197.00 
    YSI5565  pH / ORP kit 1 lb  300.00 
    YSI6118  Recharge battery  1 lb  320.00 
    YSI5083  Flow cell 1 lb  342.00 
    YSI5908  Membrane kit 1 lb  42.00 

    YSI 556 meter YSI5561 $1,625.00
    YSI 556 meter/bar YSI5562 $1,799.00
    YSI 556 4 meter cable YSI55634 $940.00
    YSI 556 10 meter cable YSI556310 $990.00
    YSI 556 20 meter cable YSI556320 $1,120.00
    YSI 556 pH kit YSI5564 $197.00
    YSI 556 pH / ORP kit YSI5565 $300.00
    YSI 556 Recharge battery YSI6118 $320.00
    YSI 556 Flow cell YSI5083 $342.00
    YSI 556 Membrane kit YSI5908 $42.00
     
    ysi-ph.jpg YSI pH/Temp Pen
    This pH meter features one hand operation, 50 set memory and low cost. Measures 0 to 14 with an accuracy of .02. The pen has a IP67 waterproof housing, ATC, auto-buffer recognition with 1,2 or 3 point calibration and a replaceable electrode.
    Part#  Description  Wt  Price 
    YSIPH10  pH pen  .3 lb  92.00 
    YSIPH11  repl.electrode  .1 lb  45.00 
    YSIPH12  batteries  .1 lb  4.00 
    YSIPH13  case  .2 lb  22.00 

    YSI pH/Temp Pen - YSIPH10 $92.00
    YSI repl.electrode - YSIPH11 $45.00
    YSI batteries - YSIPH12 $4.00
    YSI case - YSIPH13 $22.00
     
    ysi-orp.jpg YSI ORP/Temp Pen
    Take absolute and relative ORP readings from - 1200 to 1200 mV with this affordable waterproof instruiment. Use Zobel ORP calibration solution to recalibrate at any time. The pen has a replaceable electrode, ATC and auto-shut off. Use the 50 set memory and hold feature that locks readings to the screen.The pen has a IP67 housing and easy to use menus.
    Part#  Description  Wt  Price 
    YSIORP15  ORP Pen .3 lbs  141.00 
    ysiorp16  repl.electrode  .1 lbs  65.00 

    YSI ORP/Temp Pen YSIORP15 $141.00
    YSI repl.electrode YSI/ORP16 $65.00
     
    ysi20-pro.jpg YSI Pro20 Dissolved Oxygen Meter
    Rugged and reliable, the YSI Pro20 provides everything you need in a handheld DO/temp instrument for your aquaculture application. User replaceable probes and cables, Mil-spec connectors, an IP-67 waterproof rating even without the battery cover, rubber over molded case and 1-meter drop test ensures the instrument remains in your hands to provide years of sampling even in the harshest field conditions. Fast response times allow you to measure your tanks or ponds quickly, saving time and money. The Pro20 easily and quickly calibrates and measures DO values. User-replaceable DO sensors and cables will keep the instrument working if something ever goes wrong with the cable or sensor. The cable has a two year warranity and the instrument has a 3 year warranity. DO response times are the fastest on the market, 95% response in 8 seconds. This unit can be used in the harshest of conditions. The instrument stores 50 data points. Insturment has built in barometer for more accurate readings. Powered by two C batteries.
     Sensor Type: Polargraphic or galvanic

     Range: 0 to 500% air saturation, 0 to 50 mg/L

     Accuracy: 0 to 200% air saturation or - 2%
       of  reading, 0 to 2 mg/L or- 0.2 mg/L of reading

     Temperature Range: -5 to 70 degrees Celsius


     
     
    YSI Pro20 Dissolved Oxygen Meter
    Part#  Description 
    Weight
    Price
    6050020  Pro20Handheld
    5 lbs.
    465.00 
    605201  1m cable 
    3 lbs.
    225.00 
    605204  4m cable 
    5 lbs.
    235.00 
    6052010  10mcable
    8 lbs.
    285.00 
    6052020  20mcable
    11 lbs.
    365.00 
    6052030  30mcable
    16 lbs.
    435.00 
    60520100  100mcable
    29 lbs.
    698.00 
    605202  GalvanicSensor
    3 lbs.
    160.00 
    605203  PolargraphicSensor
    3 lbs.
    160.00 

    YSI Pro20 Handheld 6050020 $465.00
    YSI Pro20 1m cable 605201 $225.00
    YSI Pro20 4m cable 605204 $235.00
    YSI Pro20 10m cable 6052010 $285.00
    YSI Pro20 20m cable 6052020 $365.00
    YSI Pro20 30m cable 6052030 $435.00
    YSI Pro20 100m cable 60520100 $698.00
    YSI Pro20 Galvanic Sensor 605202 $160.00
    YSI Pro20 Polargraphic Sensor 605203 $160.00