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Under $20 pH Meters

Shop the best prices on 5,229 great value under $20 ph meters. Shopping for ph meters is easy with Fruugo, with SALE discounts, offers and savings on Elsavct, Other, HOD Health & Home and more. Buy ph meters online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 5,229
Hydrogen Meter,Hydrogen Test Pen High Hydrogen Test Pen Digital Hydrogen Meter Ultimate Reliability
$19.95 Save $29.00 RRP: $48.95
3-in-1 TDS Meter - Digital Water Quality Tester and EC and Temperature Meter Measuring Range 0-9999ppm for Water, Plants, Drinking Water, Aquariums
$18.95 Save $21.00 RRP: $39.95
3-in-1 TDS Water Quality Tester High Accuracy Digital Water Testing Kit for Drink Water Water Tester Integrated
$14.95 Save $15.00 RRP: $29.95
Ph Replacement Probe Aquarium Hydroponic Laboratory Electrode Ph Meter Potential Test Bnc Q9 Connec
$15.95 Save $15.00 RRP: $30.95
Ph Replacement Probe Aquarium Laboratory Electrode Ph Meter Potential Test Bnc Q9 Connector
$9.95 Save $6.00 RRP: $15.95
PH Meter Calibration Solution 4.0 7.0 10.01 PH Pens Calibration Solution Probe Liquids PH Calibration Solution Set
$17.95 Save $21.00 RRP: $38.95
4 In 1 Soil Ph Meter Moisture/temp/soil Ph Tester Sunlight Intensity Meter For Gardening Plants Farming With Backli
$6.95
TDS Tester for Aquarium - Water Hardness and PH Meter with EC Measurement for Pool Testing
$17.95 Save $56.05 RRP: $74.00
Digital LCD 220V Single phase Din Rail Electric Meter 5-32A Electronic KWh Meter
$18.95 Save $30.05 RRP: $49.00
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,PH 4.0 7.0 10.0
$15.95 Save $10.00 RRP: $25.95
Ph Test Strips - 100 Ph Stips Litmus Paper Testing Kit - 0-14 Range Accurate Ph Tester Strips, Universal Ph Testing Kit For Garden Lawn Farm Home Scho
$8.95 Save $2.00 RRP: $10.95
6.86 4.00 9.18 PH Buffer Solution Powder Packets 18 Pcs for Digital PH Meter Calibration
$10.95 Save $13.00 RRP: $23.95
Ph Meter, Digital Ph Meter, Ph Meter For Water Ph Meter High Accuracy
$12.95 Save $61.05 RRP: $74.00
PH Meter for Water, PH Tester 0.01 High Accuracy Water Quality Tester with 0-14 PH Measurement Range, PH Meter
$10.95 Save $42.00 RRP: $52.95
High Precision Water Hardness Instrument TDS Tester PH Meter Aquarium Pool Water Testing Pen
$0.95
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,PH 4.0 7.0 10.0
$14.95 Save $9.00 RRP: $23.95
PH Meter Replacement Electrode Probe PH Water Tester Spare Part Probe Acidometer for Aquarium PH Meter Probe for PH818
$18.95
3 in 1 Digital Water Tester - PH, TDS & Temperature Meter for Drinking Water, Pool, Aquarium
$19.95 Save $16.00 RRP: $35.95
16 in 1 Water Testing Kits for Drinking Water- (50Pcs Test Strips )
$15.95 Save $11.00 RRP: $26.95
PH Meter Calibration Solution ORP Tester,ORP 222mV
$7.95 Save $3.00 RRP: $10.95
PH Meter Calibration Solution ORP Tester Calibration Solution Buffer Solutions,PH 4.0 7.0 10.0c p
$14.95 Save $18.00 RRP: $32.95
PH Electrode Sensor Probe Factory Industry Laboratory Pool Water Analyzer PH Meter Tester PH Probe BNC Connector
$13.95 Save $13.00 RRP: $26.95
Ph Meter Calibration Solution Orp Tester Calibration Solution Buffer Solutions,ph 7.0
$4.95
0-14 PH Meter PH Test Strips Alkaline Acid Indicator Meter
$7.95 Save $2.00 RRP: $9.95
M1 TDS Meter Test Pen Portable Water Quality Tester for Swimming Pool, Digital Water Quality Analyzer with Easy Read Display
$13.95
PH Tester/NO2 Tester/NO3 Tester Chlorine Water Quality Test for Aquarium for Tank Brackish Water PH Testing
$18.95
PH Meter Digital Water Quality Test Pen PH Tester for Household Drinking Pool Aquarium Yellow
$20.95 Save $25.00 RRP: $45.95
Ph Replacement Probe Aquarium Hydroponic Lab Electrode Ph
$18.95 Save $13.00 RRP: $31.95
3 in 1 Soil pH Tester & 3 Pack pH/TDS/EC Meter, Digital Soil Test Kit for Garden, Lawn, Farm, Indoor Plants
$20.95 Save $17.00 RRP: $37.95
Fashion Poster Rose Flower Feather Nordic Style Canvas Painting B
$18.95 Save $9.00 RRP: $27.95
Long Stem Compost Soil Thermometer - Fast Response Stainless Steel 20 Inch - Measuring Probe - Fahr
$18.95 Save $9.00 RRP: $27.95
High Quality 5m Ph Alkaline Acid Test Paper Water Litmus Testing For Gardening Aquarium Plant
$13.95 Save $6.00 RRP: $19.95