pH, Conductivity & TDS Meters

3,363 Results

Mettler Toledo SevenCompact S220 pH/Ion Meter
Pre-Owned
$300.00
or Best Offer
$9.88 shipping
S⁣p⁣2⁣1⁣o⁣n⁣ ⁣L⁣s⁣o⁣r⁣e⁣9⁣ ⁣d⁣M⁣J⁣ ⁣⁣A⁣⁣Y⁣ ⁣⁣⁣9⁣⁣M⁣
Thermo Scientific Orion Star A329 Portable pH/ISE/Conductivity/RDO/DO Meter Set
Pre-Owned
$1,500.00
or Best Offer
$13.85 shipping
0⁣6⁣ ⁣S⁣J⁣p⁣U⁣ ⁣o⁣n⁣s⁣o⁣r⁣9⁣U⁣e⁣d⁣ ⁣⁣E⁣0⁣⁣ ⁣⁣⁣⁣P⁣4⁣
Digital pH Meter PPM,TDS&EC Water Quality Tester,±0.01pH for Home Lab WHOLE SALE
Brand New
$9.59 to $139.99
Free shipping
47 sold
⁣M⁣J⁣ ⁣⁣R⁣P⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣U⁣⁣⁣⁣⁣⁣B⁣⁣⁣ ⁣4⁣
Extech ExStik PH100 Waterproof pH Meter NEW
Brand New · Extech
(1)
$26.00
Free shipping
⁣⁣⁣⁣5⁣E⁣⁣ ⁣⁣⁣⁣⁣C⁣2⁣⁣ ⁣4⁣⁣⁣J⁣⁣ ⁣R⁣8⁣ ⁣1⁣⁣B⁣
New ListingROSEMOUNT ANALYTICAL 228-02-21-56-61 CONDUCTIVITY PROBE TOROIDAL FREE PRIORITY
$799.99
or Best Offer
Free shipping
O⁣⁣D⁣⁣ ⁣H⁣5⁣ ⁣W⁣A⁣ ⁣3⁣L⁣ ⁣⁣M⁣⁣P⁣⁣⁣ ⁣8⁣⁣⁣⁣⁣ ⁣⁣
Extech ExStik PH100 Waterproof pH Meter NEW
Brand New · Extech
(1)
$28.99
Free shipping
Only 1 left!
T⁣⁣C⁣⁣ ⁣7⁣2⁣⁣⁣⁣ ⁣⁣0⁣9⁣ ⁣0⁣⁣B⁣⁣⁣ ⁣Q⁣A⁣⁣ ⁣⁣⁣⁣
Atlas Scientific pH probe Consumer Grade
Brand New
$30.00
$6.35 shipping
Only 1 left!
5⁣⁣0⁣ ⁣T⁣⁣⁣7⁣⁣⁣ ⁣⁣⁣⁣Y⁣D⁣⁣ ⁣⁣⁣C⁣9⁣ ⁣⁣2⁣U⁣⁣⁣
*ZEROWATER CULLIGAN TDS DIGITAL METER TESTER OEM ZERO WATER REPLACEMENT*
Brand New
$10.00
or Best Offer
$4.00 shipping
Only 1 left!
⁣⁣⁣⁣⁣⁣⁣⁣9⁣Z⁣⁣⁣ ⁣⁣K⁣H⁣ ⁣⁣4⁣I⁣⁣ ⁣1⁣⁣9⁣⁣⁣⁣
Apera PH60 Premium Waterproof pH Tester for general water solutions
Brand New · Apera Instruments
(19)
$79.60
Free shipping
5⁣⁣⁣J⁣ ⁣8⁣M⁣⁣⁣⁣ ⁣⁣⁣T⁣⁣G⁣⁣ ⁣⁣⁣C⁣⁣⁣Y⁣ ⁣⁣S⁣⁣
Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test
Pre-Owned · Apera Instruments
(4)
$49.99
$4.99 shipping
W⁣⁣L⁣ ⁣⁣0⁣M⁣ ⁣⁣⁣⁣⁣⁣Y⁣T⁣ ⁣O⁣M⁣⁣⁣ ⁣⁣U⁣U⁣⁣⁣⁣ ⁣
Extech ExStik PH100 Waterproof pH Meter New!!
Brand New · Extech
(1)
$14.99
or Best Offer
$7.78 shipping
0⁣3⁣⁣⁣⁣⁣ ⁣6⁣G⁣⁣ ⁣⁣O⁣M⁣ ⁣P⁣U⁣⁣ ⁣6⁣⁣1⁣ ⁣D⁣⁣⁣⁣⁣
PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium
Brand New
$9.99 to $31.99
Free shipping
76 sold
U⁣8⁣ ⁣I⁣A⁣ ⁣⁣⁣E⁣B⁣ ⁣⁣⁣H⁣⁣C⁣⁣ ⁣⁣⁣B⁣⁣F⁣ ⁣⁣⁣F⁣⁣
Extech 6015wc Replacement Electrode
Brand New
$30.00
Free shipping
5⁣⁣⁣⁣P⁣⁣⁣⁣⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣T⁣⁣⁣8⁣⁣⁣ ⁣R⁣⁣
New ListingExtech ExStik 2 X Brand New Units PH100 Waterproof pH Meter
Brand New · Extech
(1)
$28.50
Free shipping
0 bids
6d 9h
X⁣⁣⁣G⁣⁣⁣ ⁣⁣G⁣⁣Q⁣ ⁣V⁣6⁣⁣⁣ ⁣⁣F⁣3⁣⁣⁣⁣⁣⁣⁣ ⁣G⁣
Hanna Instruments HI9813-5/6 Portable pH/EC/TDS/Temperature Meter with CAL Check
Brand New
$240.00
or Best Offer
Free shipping
⁣6⁣W⁣⁣⁣ ⁣⁣0⁣⁣⁣⁣⁣0⁣⁣ ⁣F⁣⁣⁣F⁣ ⁣⁣⁣M⁣8⁣ ⁣⁣⁣S⁣
Mettler Toledo SevenEasy pH Meter NO A/C ADAPTER, TESTED, FREE SHIPPING 🚚
Pre-Owned
$40.00
Free shipping
K⁣⁣⁣P⁣ ⁣0⁣2⁣⁣ ⁣0⁣⁣⁣⁣C⁣⁣⁣⁣ ⁣⁣E⁣⁣⁣0⁣ ⁣⁣⁣U⁣K⁣
Atlas scientific K 1.0 Conductivity Probe Kit
$161.94
or Best Offer
Free shipping
⁣⁣⁣⁣7⁣2⁣ ⁣P⁣J⁣ ⁣T⁣H⁣⁣⁣ ⁣⁣Y⁣2⁣ ⁣W⁣V⁣⁣⁣ ⁣3⁣⁣⁣⁣
pH 4.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments
Brand New · Hanna
$1.99
$4.99 shipping
M⁣⁣⁣N⁣⁣ ⁣⁣⁣⁣Z⁣Y⁣⁣ ⁣M⁣⁣V⁣ ⁣⁣⁣⁣⁣⁣⁣⁣N⁣⁣⁣⁣
YSI 30/10 FT Salinity Conductivity Temperature Meter/Detector Unit.
Pre-Owned
$50.00
or Best Offer
$8.58 shipping
0 bids
21h 53m
⁣⁣⁣A⁣B⁣ ⁣C⁣⁣U⁣⁣⁣⁣ ⁣S⁣1⁣⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣X⁣S⁣ ⁣
New ListingHach DR300 Iron Meter
Brand New
$450.00
or Best Offer
Free shipping
6⁣⁣2⁣ ⁣C⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣X⁣ ⁣9⁣C⁣⁣ ⁣O⁣S⁣⁣⁣⁣⁣⁣ ⁣
New ListingHach SpecCheck Secondary Standards for Monochloramine and Free Ammonia, 2507500
$225.00
or Best Offer
Free shipping
5⁣⁣⁣R⁣ ⁣J⁣V⁣ ⁣Q⁣Y⁣ ⁣⁣E⁣⁣⁣C⁣ ⁣⁣⁣L⁣D⁣⁣ ⁣⁣⁣7⁣⁣⁣
HM Digital TRM-1 Triple In-Line TDS Monitor
Pre-Owned · HM Digital
(4)
$23.45
Free shipping
6⁣⁣⁣T⁣ ⁣E⁣T⁣ ⁣M⁣⁣7⁣ ⁣⁣⁣T⁣T⁣⁣ ⁣V⁣⁣1⁣⁣⁣ ⁣⁣⁣⁣I⁣
VIVOSUN 3 in 1 Digital Soil Tester Sunlight Soil Moisture Water PH Garden Plant
Brand New
$8.54
Was: $8.99was - US $8.99
or Best Offer
Free shipping
8⁣⁣T⁣ ⁣1⁣⁣C⁣ ⁣K⁣⁣8⁣ ⁣N⁣⁣⁣⁣V⁣ ⁣⁣J⁣Y⁣ ⁣6⁣⁣⁣⁣⁣⁣
Hach DR/890 Handheld Portable Colorimeter - Free Shipping
Pre-Owned · Hach
(6)
$399.99
or Best Offer
Free shipping
Y⁣⁣1⁣⁣⁣⁣ ⁣⁣⁣F⁣⁣⁣⁣S⁣ ⁣L⁣2⁣ ⁣⁣⁣⁣4⁣J⁣⁣⁣⁣⁣⁣
THERMO SCIENTIFIC 8107UWMMD BNC MINIDIN ORION ROSS PH/ATC TRIODE - USED
Pre-Owned · Thermo Scientific
$75.00
$8.24 shipping
V⁣⁣⁣⁣U⁣ ⁣P⁣E⁣ ⁣⁣⁣⁣9⁣⁣T⁣ ⁣A⁣⁣0⁣ ⁣⁣K⁣P⁣ ⁣⁣8⁣⁣⁣
HACH SENSION+ Ph1 Portable Conductivity PH Meter w/Probe,No Battery,WORKS,QTY
Pre-Owned
$89.95
or Best Offer
Free shipping
Only 1 left!
⁣⁣W⁣Z⁣ ⁣⁣⁣L⁣Y⁣ ⁣⁣⁣⁣M⁣3⁣⁣⁣ ⁣⁣⁣2⁣K⁣⁣ ⁣3⁣⁣⁣V⁣
Atlas Scientific ORP Kit
Brand New
$45.00
$5.70 shipping
⁣⁣⁣C⁣0⁣⁣ ⁣⁣⁣⁣⁣K⁣N⁣ ⁣P⁣⁣9⁣ ⁣⁣O⁣⁣⁣⁣⁣⁣8⁣ ⁣F⁣
Apera PH60 Premium Waterproof pH Tester for general water solutions
Brand New · Apera Instruments
(19)
$79.00
Free shipping
Only 1 left!
L⁣G⁣⁣ ⁣⁣⁣H⁣D⁣ ⁣⁣⁣N⁣H⁣ ⁣⁣⁣O⁣9⁣ ⁣N⁣⁣1⁣⁣ ⁣J⁣⁣ ⁣⁣
Hanna Instruments EPA Compliant HI98703-01 Portable Turbidity Meter Kit
$600.00
or Best Offer
$12.58 shipping
S⁣p⁣o⁣F⁣U⁣n⁣ ⁣7⁣s⁣o⁣r⁣J⁣ ⁣5⁣e⁣d⁣B⁣⁣⁣⁣ ⁣H⁣⁣⁣⁣L⁣ ⁣9⁣
New ListingMyron L meter TPH1 TechPro II Cond/TDS,pH, Temperature
(2)
$975.00
or Best Offer
Free shipping
3⁣S⁣C⁣p⁣o⁣ ⁣P⁣W⁣n⁣s⁣o⁣r⁣e⁣ ⁣Y⁣C⁣d⁣⁣ ⁣⁣⁣⁣⁣D⁣7⁣⁣⁣ ⁣
Fisherband accumet AB150 ph meter_excellent Condition-30days Warranty
Pre-Owned
$875.00
or Best Offer
$8.22 shipping
V⁣Z⁣S⁣p⁣o⁣ ⁣C⁣M⁣n⁣ ⁣D⁣4⁣s⁣o⁣r⁣ ⁣e⁣3⁣d⁣0⁣⁣⁣ ⁣Z⁣⁣⁣9⁣⁣
YSI Professional Plus Water Tester Meter With Everthing Seen *SEE
Pre-Owned · Unbranded
$1,111.00
Free shipping
G⁣S⁣p⁣M⁣ ⁣o⁣n⁣U⁣8⁣s⁣ ⁣F⁣o⁣r⁣7⁣e⁣d⁣⁣ ⁣⁣⁣⁣⁣⁣⁣⁣⁣G⁣
HACH HQ40d Multi PORTABLE MULTI-PROBE METER
Pre-Owned
$575.00
or Best Offer
Free shipping
O⁣⁣⁣⁣3⁣ ⁣M⁣1⁣ ⁣⁣P⁣⁣M⁣ ⁣⁣T⁣⁣C⁣ ⁣⁣⁣O⁣⁣⁣⁣R⁣⁣ ⁣
Hannna instruments HI5521-01 PH/mV/ISE meter
Pre-Owned
$250.00
or Best Offer
$6.53 shipping
P⁣⁣H⁣ ⁣⁣R⁣0⁣⁣⁣⁣ ⁣⁣⁣M⁣8⁣⁣⁣ ⁣⁣⁣⁣⁣3⁣⁣X⁣⁣ ⁣2⁣
Hanna HI 9147 Dissolved Oxygen Meter with Galvanic Probe
Pre-Owned
$300.00
or Best Offer
$11.70 shipping
K⁣⁣⁣⁣⁣⁣H⁣ ⁣G⁣⁣⁣P⁣ ⁣⁣Y⁣K⁣ ⁣⁣⁣⁣S⁣⁣⁣9⁣ ⁣Z⁣⁣⁣
Extech Replacement pH Meter Electrode w Cable 6015WC new out of box probe sensor
(1)
$29.00
or Best Offer
Free shipping
R⁣5⁣ ⁣⁣⁣Y⁣⁣⁣⁣G⁣⁣⁣ ⁣⁣⁣E⁣⁣H⁣ ⁣B⁣⁣⁣⁣T⁣ ⁣A⁣⁣⁣
YSI Pro30 Conductivity Meter
Brand New
$150.00
$7.70 shipping
0 bids
1d 16h
X⁣⁣⁣B⁣ ⁣⁣⁣⁣8⁣⁣⁣3⁣⁣ ⁣H⁣9⁣⁣⁣⁣ ⁣⁣⁣4⁣⁣J⁣⁣ ⁣Q⁣
New ListingThermo Scientific Orion Star A211 Benchtop pH Meter
Pre-Owned
$120.00
or Best Offer
$7.60 shipping
⁣⁣M⁣9⁣⁣⁣ ⁣Y⁣9⁣⁣ ⁣6⁣6⁣ ⁣⁣⁣⁣⁣⁣⁣1⁣N⁣ ⁣6⁣⁣⁣P⁣ ⁣
Mettler Toledo SevenExcellence Benchtop meter, pH/mV and Conductivity modules
Pre-Owned
$899.00
$38.95 shipping
C⁣S⁣p⁣9⁣o⁣ ⁣S⁣9⁣n⁣ ⁣s⁣9⁣o⁣N⁣ ⁣r⁣S⁣F⁣ ⁣G⁣0⁣e⁣d⁣ ⁣7⁣⁣⁣⁣
Thermo Scientific PH Meter Orion 2 star
Pre-Owned
$59.99
Was: $79.99was - US $79.99
or Best Offer
$17.74 shipping
O⁣T⁣ ⁣1⁣J⁣ ⁣S⁣X⁣p⁣o⁣7⁣n⁣ ⁣I⁣4⁣ ⁣0⁣s⁣o⁣r⁣e⁣d⁣S⁣⁣ ⁣⁣⁣⁣
New ListingHACH DPD | Chlorine Low Range LR| Secondary Standards Kit | 2635300 |
Pre-Owned
$125.00
or Best Offer
Free shipping
⁣⁣⁣⁣I⁣⁣5⁣ ⁣⁣V⁣V⁣ ⁣⁣Z⁣⁣E⁣ ⁣⁣0⁣8⁣ ⁣S⁣A⁣⁣ ⁣9⁣⁣⁣
New ListingHach DR300 Ammonia Meter
$450.00
or Best Offer
Free shipping
⁣O⁣⁣⁣A⁣ ⁣P⁣Z⁣ ⁣⁣Q⁣⁣⁣8⁣⁣ ⁣P⁣V⁣ ⁣B⁣3⁣⁣⁣⁣ ⁣M⁣⁣⁣
Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test
Brand New · Apera Instruments
(4)
$129.00
Free shipping
⁣⁣⁣1⁣Q⁣ ⁣⁣E⁣N⁣⁣ ⁣⁣R⁣4⁣ ⁣⁣X⁣Q⁣ ⁣⁣⁣E⁣X⁣ ⁣⁣⁣E⁣⁣
New Extech ExStik PH100 Waterproof pH Meter
Brand New · Extech
(1)
$19.99
Free shipping
M⁣⁣⁣A⁣⁣ ⁣F⁣⁣A⁣⁣⁣ ⁣4⁣⁣5⁣ ⁣E⁣W⁣ ⁣⁣⁣X⁣⁣5⁣ ⁣⁣⁣⁣
Extech PH220-C Waterproof Palm pH Meter w/ Cabled Electrode Portable Digital LCD
$125.00
or Best Offer
Free shipping
⁣⁣7⁣⁣H⁣ ⁣M⁣M⁣⁣ ⁣⁣R⁣3⁣ ⁣⁣⁣4⁣Y⁣ ⁣E⁣C⁣⁣ ⁣⁣⁣7⁣⁣⁣
New ListingHach PS1201 Power Supply Network Connection Module For Turbidimeter 1720e 1720d
Pre-Owned
$49.95
or Best Offer
Free shipping
4⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣R⁣ ⁣⁣⁣⁣Q⁣I⁣ ⁣⁣R⁣4⁣ ⁣⁣⁣⁣0⁣4⁣
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit
Brand New · Apera Instruments
(19)
$79.99
or Best Offer
Free shipping
Only 1 left!
Q⁣⁣⁣R⁣⁣⁣ ⁣⁣⁣W⁣Y⁣⁣ ⁣I⁣7⁣⁣ ⁣G⁣⁣⁣⁣P⁣ ⁣⁣⁣⁣⁣⁣
Hanna Instruments HI98192 Waterproof Portable EC/TDS/Resistivity/Salinity Meter
Pre-Owned
$349.99
or Best Offer
$29.95 shipping
⁣⁣⁣⁣⁣⁣⁣⁣O⁣M⁣ ⁣⁣9⁣⁣⁣9⁣⁣ ⁣2⁣⁣⁣5⁣⁣ ⁣A⁣6⁣⁣ ⁣
Extech ExStik PH100 Waterproof pH Meter
Brand New · Extech
(1)
$44.09
Was: $48.99was - US $48.99
Free shipping
⁣⁣N⁣⁣⁣⁣⁣Z⁣ ⁣⁣⁣P⁣U⁣⁣ ⁣S⁣⁣G⁣⁣⁣ ⁣U⁣L⁣ ⁣⁣⁣⁣⁣
HACH SENSION 1 Portable Conductivity PH Meter 5170060
$99.95
$12.30 shipping
⁣⁣⁣O⁣G⁣ ⁣⁣⁣⁣9⁣⁣C⁣ ⁣7⁣⁣⁣9⁣ ⁣⁣⁣T⁣C⁣ ⁣0⁣3⁣⁣⁣ ⁣
Orion PH Meter Probe Multi Stand w/Heavy Base
Pre-Owned
$25.00
$12.70 shipping
⁣N⁣Z⁣⁣ ⁣⁣6⁣⁣⁣3⁣⁣⁣⁣⁣⁣ ⁣U⁣⁣⁣⁣⁣G⁣⁣⁣ ⁣⁣⁣⁣
Pocket Digital pH Meter Tester Pen 0.05pH - ATC Waterproof for Pool Aquarium Lab
Brand New · Unbranded
$10.32
Free shipping
480 sold
9⁣⁣⁣5⁣⁣ ⁣N⁣⁣⁣⁣2⁣ ⁣O⁣⁣V⁣ ⁣N⁣⁣A⁣ ⁣⁣J⁣⁣6⁣ ⁣⁣⁣⁣
SALE 067 Body pH TEST Tape Paper Roll 4 Saliva & Urine Acid 5.5 Alkaline Health
Brand New
$10.99 to $79.99
Free shipping
⁣⁣⁣Y⁣7⁣⁣ ⁣⁣⁣G⁣⁣⁣⁣X⁣ ⁣H⁣W⁣ ⁣⁣Y⁣⁣W⁣ ⁣2⁣Q⁣⁣⁣ ⁣
Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test
Pre-Owned · Apera Instruments
(4)
$59.99
$8.65 shipping
⁣Q⁣1⁣ ⁣⁣⁣1⁣N⁣ ⁣7⁣G⁣⁣ ⁣⁣⁣C⁣⁣⁣Y⁣⁣ ⁣P⁣Y⁣ ⁣A⁣⁣⁣⁣
Hach HAC-DT (Hardness, Total & Calcium) Test Kit
Pre-Owned
$150.00
or Best Offer
Free shipping
⁣S⁣N⁣ ⁣4⁣X⁣ ⁣⁣⁣⁣⁣X⁣⁣⁣H⁣ ⁣⁣⁣⁣K⁣⁣M⁣ ⁣⁣V⁣⁣D⁣⁣
FISHER SCIENTIFIC ACCUMET PH METER 950
Pre-Owned
$50.00
$11.95 shipping
0 bids
3d 22h
⁣N⁣⁣⁣P⁣ ⁣0⁣⁣⁣⁣⁣⁣K⁣⁣⁣⁣⁣ ⁣⁣9⁣⁣M⁣⁣ ⁣⁣7⁣⁣⁣
Hach DR2800 UNTESTED
Parts Only
$399.95
or Best Offer
Free shipping
⁣4⁣B⁣⁣ ⁣3⁣V⁣⁣⁣⁣⁣⁣⁣ ⁣4⁣⁣⁣⁣⁣⁣⁣3⁣⁣⁣ ⁣⁣4⁣⁣
HANNA INSTRUMENTS HI-8733 Portable Multi-range Conductivity Meter
Pre-Owned · Hanna
$84.99
or Best Offer
$8.99 shipping
J⁣⁣⁣⁣⁣⁣⁣⁣⁣Y⁣ ⁣6⁣C⁣ ⁣P⁣⁣M⁣⁣⁣ ⁣J⁣R⁣ ⁣⁣E⁣W⁣ ⁣⁣
HACH D3422C3 Conductivity Sensor Assy
Pre-Owned
$359.99
or Best Offer
Free shipping
L⁣Z⁣S⁣p⁣o⁣n⁣ ⁣s⁣o⁣T⁣r⁣e⁣M⁣ ⁣d⁣G⁣M⁣ ⁣⁣U⁣W⁣ ⁣⁣⁣J⁣A⁣⁣ ⁣
HACH 09240=C=0310 / 0320 Reference Electrode For 9245-9240 Sodium analyzer ⭐NEW⭐
Brand New
$297.77
$9.99 shipping
T⁣S⁣p⁣o⁣n⁣s⁣7⁣ ⁣o⁣r⁣e⁣d⁣⁣⁣A⁣U⁣ ⁣V⁣⁣⁣⁣5⁣⁣⁣⁣⁣⁣⁣

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Extech ExStik PH100 Waterproof pH Meter
(1)
$25.99 New
$25.00 Used
Atago PAL-pH Portable Digital pH Meter coolant food beverage pH Tester 4311
$298.99 New
Apera Instruments AI31 PH60 Premium Waterproof pH Pocket Tester
(19)
$79.00 New
$49.99 Used
Hanna HI98198 Portable Optical Dissolved Oxygen Meter/DO Meter
$599.00 New
$49.00 Used
Ohaus Ph Meters ST20 Pen Meter Waterproof 0.01
$82.28 New
Apera Instruments AI3719 Pc60-z Bluetooth Smart Ph Tester Powered by Zentest
$195.00 New
$119.99 Used
Apera Instruments AI3711 Ph60-z Bluetooth Smart Ph Tester Powered by Zentest App
$122.95 New
Milwaukee MW801 3-in-1 TDS Meter - Black
(3)
$204.95 New

pH, Conductivity & TDS Meters

Shop by Category

3,363 Results

Mettler Toledo SevenCompact S220 pH/Ion Meter

Thermo Scientific Orion Star A329 Portable pH/ISE/Conductivity/RDO/DO Meter Set

Digital pH Meter PPM,TDS&EC Water Quality Tester,±0.01pH for Home Lab WHOLE SALE

Extech ExStik PH100 Waterproof pH Meter NEW

New ListingROSEMOUNT ANALYTICAL 228-02-21-56-61 CONDUCTIVITY PROBE TOROIDAL FREE PRIORITY

Extech ExStik PH100 Waterproof pH Meter NEW

Atlas Scientific pH probe Consumer Grade

*ZEROWATER CULLIGAN TDS DIGITAL METER TESTER OEM ZERO WATER REPLACEMENT*

Apera PH60 Premium Waterproof pH Tester for general water solutions

Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test

Extech ExStik PH100 Waterproof pH Meter New!!

PH Meter, TDS&EC PPM Meter Water Tester for Household Drinking,Pool and Aquarium

Extech 6015wc Replacement Electrode

New ListingExtech ExStik 2 X Brand New Units PH100 Waterproof pH Meter

Hanna Instruments HI9813-5/6 Portable pH/EC/TDS/Temperature Meter with CAL Check

Mettler Toledo SevenEasy pH Meter NO A/C ADAPTER, TESTED, FREE SHIPPING 🚚

Atlas scientific K 1.0 Conductivity Probe Kit

pH 4.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

YSI 30/10 FT Salinity Conductivity Temperature Meter/Detector Unit.

New ListingHach DR300 Iron Meter

New ListingHach SpecCheck Secondary Standards for Monochloramine and Free Ammonia, 2507500

HM Digital TRM-1 Triple In-Line TDS Monitor

VIVOSUN 3 in 1 Digital Soil Tester Sunlight Soil Moisture Water PH Garden Plant

Hach DR/890 Handheld Portable Colorimeter - Free Shipping

THERMO SCIENTIFIC 8107UWMMD BNC MINIDIN ORION ROSS PH/ATC TRIODE - USED

HACH SENSION+ Ph1 Portable Conductivity PH Meter w/Probe,No Battery,WORKS,QTY

Atlas Scientific ORP Kit

Apera PH60 Premium Waterproof pH Tester for general water solutions

Hanna Instruments EPA Compliant HI98703-01 Portable Turbidity Meter Kit

New ListingMyron L meter TPH1 TechPro II Cond/TDS,pH, Temperature

Fisherband accumet AB150 ph meter_excellent Condition-30days Warranty

YSI Professional Plus Water Tester Meter With Everthing Seen *SEE

HACH HQ40d Multi PORTABLE MULTI-PROBE METER

Hannna instruments HI5521-01 PH/mV/ISE meter

Hanna HI 9147 Dissolved Oxygen Meter with Galvanic Probe

Extech Replacement pH Meter Electrode w Cable 6015WC new out of box probe sensor

YSI Pro30 Conductivity Meter

New ListingThermo Scientific Orion Star A211 Benchtop pH Meter

Mettler Toledo SevenExcellence Benchtop meter, pH/mV and Conductivity modules

Thermo Scientific PH Meter Orion 2 star

New ListingHACH DPD | Chlorine Low Range LR| Secondary Standards Kit | 2635300 |

New ListingHach DR300 Ammonia Meter

Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test

New Extech ExStik PH100 Waterproof pH Meter

Extech PH220-C Waterproof Palm pH Meter w/ Cabled Electrode Portable Digital LCD

New ListingHach PS1201 Power Supply Network Connection Module For Turbidimeter 1720e 1720d

Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit

Hanna Instruments HI98192 Waterproof Portable EC/TDS/Resistivity/Salinity Meter

Extech ExStik PH100 Waterproof pH Meter

HACH SENSION 1 Portable Conductivity PH Meter 5170060

Orion PH Meter Probe Multi Stand w/Heavy Base

Pocket Digital pH Meter Tester Pen 0.05pH - ATC Waterproof for Pool Aquarium Lab

SALE 067 Body pH TEST Tape Paper Roll 4 Saliva & Urine Acid 5.5 Alkaline Health

Apera Premium Series PH60F Flat pH Pocket Tester Kit for Surface pH Test

Hach HAC-DT (Hardness, Total & Calcium) Test Kit

FISHER SCIENTIFIC ACCUMET PH METER 950

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