Skip to navigation Skip to content

Discount Instruments is 100% Australian Owned
All prices are in AUD and include GST.
All Orders Are Shipped From Sydney

My Account
Track Your Order
Checkout

Water
Electrical
- EMF Meters
- Multimeters
Cable Testers
Air
Light
Sound
- Sound Level Meters
Angle / Range
Stud / Joints / Wall
- Stud Finders
Temperature
Automotive
Photographic
- Body Camera

Most Popular
Wholesale
My Orders
Contact Us

Email: [email protected]

Shop Instruments

Water
Electrical
- EMF Meters
- Multimeters
Cable Testers
Air
Light
Sound
- Sound Level Meters
Angle / Range
Stud / Joints / Wall
- Stud Finders
Temperature
Automotive
Photographic
- Body Camera

Search for:

- × pH Test Strips 1 × $9.80
- × Digital pH and TDS Meter Combo Pack 1 × $49.90
- × 3-in-1 pH, EC, and Temperature Waterproof Water Quality Tester 1 × $95.63
Subtotal: $155.33
View cart Checkout

Water
Electrical
- EMF Meters
- Multimeters
Cable Testers
Air
Light
Sound
- Sound Level Meters
Angle / Range
Stud / Joints / Wall
- Stud Finders
Temperature
Automotive
Photographic
- Body Camera

Search
Search for:
3

Search for:

HomeWaterpH Meters

pH Meters

Showing 1–48 of 57 resultsSorted by price: low to high

of 2→

pH Meters, Water
pH Test Strips
-23%
pH Meters, Water
pH Test Strips
0 out of 5
(0)
SKU: 43
$9.80 ~~$12.77~~
Add to cart
pH Meters, Water
Digital pH Meter
-16%
pH Meters, Water
Digital pH Meter
No reviews
Rated 5.00 out of 5
(1)
SKU: 2
$25.91 ~~$30.82~~
Add to cart
pH Meters
Pocket Size Digital pH meter & Water Quality Tester
-16%
pH Meters
Pocket Size Digital pH meter & Water Quality Tester
0 out of 5
(0)
SKU: 121
$39.81 ~~$47.48~~
Add to cart
pH Meters
Digital Pen Type pH Meter
-18%
pH Meters
Digital Pen Type pH Meter
0 out of 5
(0)
SKU: 130
$39.81 ~~$48.59~~
Add to cart
Accessories, Instruments, pH Meters, Water
pH Electrode Probe with BNC Connector and 200cm Long Cable for PH Meter
-13%
Accessories, Instruments, pH Meters, Water
pH Electrode Probe with BNC Connector and 200cm Long Cable for PH Meter
0 out of 5
(0)
SKU: PH-PRB-BNC-200CM
$42.20 ~~$48.23~~
Add to cart
pH Meters
Pen Type Digital PH Meter & Hydroponics Water Quality Tester
-17%
pH Meters
Pen Type Digital PH Meter & Hydroponics Water Quality Tester
0 out of 5
(0)
SKU: 119
$49.40 ~~$59.22~~
Add to cart
Instruments, pH Meters, Sensors / Probes
Digital Pen-Type pH Meter Tester with 0.00 – 14.00 pH Range
-11%
Instruments, pH Meters, Sensors / Probes
Digital Pen-Type pH Meter Tester with 0.00 – 14.00 pH Range
0 out of 5
(0)
SKU: TST-PH-PEN-0.00-14.00
$49.40 ~~$55.54~~
Add to cart
pH Meters, TDS Meters, Water
Digital pH and TDS Meter Combo Pack
-12%
pH Meters, TDS Meters, Water
Digital pH and TDS Meter Combo Pack
0 out of 5
(0)
SKU: 5
$49.90 ~~$56.82~~
Add to cart
Accessories, Instruments, pH Meters, Sensors / Probes
Replacement Electrode for pH Meters PHM-224, TDS-240, ECM-226
-9%
Accessories, Instruments, pH Meters, Sensors / Probes
Replacement Electrode for pH Meters PHM-224, TDS-240, ECM-226
0 out of 5
(0)
SKU: ELE-PH-REPL
$50.19 ~~$55.28~~
Add to cart
Accessories, Instruments, pH Meters, Sensors / Probes
Replacement pH Electrode with Calibration Powder, 0-14 pH
-25%
Accessories, Instruments, pH Meters, Sensors / Probes
Replacement pH Electrode with Calibration Powder, 0-14 pH
0 out of 5
(0)
SKU: PH-ELC-RPL-CAL
$58.61 ~~$78.23~~
Add to cart
Accessories, Instruments, pH Meters, Sensors / Probes
Accurate & Fast Combination pH Electrode with Long BNC Connector
-26%
Accessories, Instruments, pH Meters, Sensors / Probes
Accurate & Fast Combination pH Electrode with Long BNC Connector
0 out of 5
(0)
SKU: PH-ELC-CMB-LNG-BNC
$58.94 ~~$79.85~~
Add to cart
Accessories, Instruments, pH Meters, Sensors / Probes
High Accuracy pH Electrode with Calibration Powder (0-14 pH)
-24%
Accessories, Instruments, pH Meters, Sensors / Probes
High Accuracy pH Electrode with Calibration Powder (0-14 pH)
0 out of 5
(0)
SKU: PH-ELC-HGH-ACC-CAL
$61.48 ~~$80.60~~
Add to cart
pH Meters
Digital Pen Type pH Meter & Thermometer
-19%
pH Meters
Digital Pen Type pH Meter & Thermometer
0 out of 5
(0)
SKU: 120
$69.20 ~~$84.96~~
Add to cart
pH Meters, Water
pH Monitor With 1 Meter Fixed Cable
-40%
pH Meters, Water
pH Monitor With 1 Meter Fixed Cable
0 out of 5
(0)
SKU: 18
$69.21 ~~$115.65~~
Add to cart
pH Meters, Soil pH Meters, Water
4 In 1 Digital Soil pH Meter
-8%
pH Meters, Soil pH Meters, Water
4 In 1 Digital Soil pH Meter
Rated 5.00 out of 5
(1)
4 in 1 Digital Soil pH Meter
No Calibration Required
Shipped From Sydney and Melbourne
SKU: 169856
$69.96 ~~$76.35~~
Add to cart
pH Meters
Pocket Sized PH Meter & Water Quality Tester with Flexible Display
-41%
pH Meters
Pocket Sized PH Meter & Water Quality Tester with Flexible Display
0 out of 5
(0)
SKU: 127
$79.10 ~~$134.46~~
Add to cart
pH Meters
2 in 1 Continuous Temperature & PH Monitor w/ Backlight & Replaceable Electrode
-13%
pH Meters
2 in 1 Continuous Temperature & PH Monitor w/ Backlight & Replaceable Electrode
0 out of 5
(0)
SKU: 128
$86.03 ~~$98.69~~
Add to cart
EC Meter, Instruments, ORP Meters, pH Meters, Salinity, TDS Meters, Water
7-in-1 Pen Type Water Quality Tester (pH, TDS, EC, ORP, Salinity, SG, Temp)
-24%
EC Meter, Instruments, ORP Meters, pH Meters, Salinity, TDS Meters, Water
7-in-1 Pen Type Water Quality Tester (pH, TDS, EC, ORP, Salinity, SG, Temp)
1 review
0 out of 5
(0)
SKU: TST-WTR-7IN1-PEN
$86.63 ~~$113.67~~
Add to cart
pH Meters, TDS Meters
Pen Type 3 in 1 pH / TDS / Temperature Meter Combo
-38%
pH Meters, TDS Meters
Pen Type 3 in 1 pH / TDS / Temperature Meter Combo
0 out of 5
(0)
SKU: 131
$88.11 ~~$141.39~~
Add to cart
EC Meter, Instruments, pH Meters, Temperature
3-in-1 pH / EC / Temperature Meter ATC Waterproof Pen Type Tester
-31%
EC Meter, Instruments, pH Meters, Temperature
3-in-1 pH / EC / Temperature Meter ATC Waterproof Pen Type Tester
0 out of 5
(0)
SKU: MET-PH-EC-TEMP-ATC
$88.61 ~~$128.52~~
Add to cart
pH Meters, Water
Digital pH Meter IP65 Rated Waterproof
-37%
pH Meters, Water
Digital pH Meter IP65 Rated Waterproof
0 out of 5
(0)
IP grade: IP65 Waterproof
Measuring range: 0~14pH
Accuracy : ±0.2pH
Resolution : 0.1pH
SKU: 1526535658428
$89.00 ~~$142.38~~
Add to cart
pH Meters
Digital Waterproof Pen Type pH Meter & Thermometer W/ 1 Touch Multi Calibration & Pouch
-44%
pH Meters
Digital Waterproof Pen Type pH Meter & Thermometer W/ 1 Touch Multi Calibration & Pouch
0 out of 5
(0)
SKU: 114
$89.00 ~~$158.22~~
Add to cart
Accessories, EC Meter, Instruments, pH Meters, Temperature
3-in-1 pH, EC, and Temperature Waterproof Water Quality Tester
-17%
Accessories, EC Meter, Instruments, pH Meters, Temperature
3-in-1 pH, EC, and Temperature Waterproof Water Quality Tester
0 out of 5
(0)
SKU: TST-PH-EC-TMP-WP
$95.63 ~~$114.61~~
Add to cart
pH Meters
Pen Type Digital pH Meter & Water Quality Tester W/ Probe
-45%
pH Meters
Pen Type Digital pH Meter & Water Quality Tester W/ Probe
0 out of 5
(0)
SKU: 123
$98.90 ~~$180.99~~
Add to cart
Accessories, Instruments, pH Meters
pH Monitor Meter with ATC, 0~14pH, Power Adaptor, for Aquarium and Hydroponics
-20%
Accessories, Instruments, pH Meters
pH Monitor Meter with ATC, 0~14pH, Power Adaptor, for Aquarium and Hydroponics
0 out of 5
(0)
SKU: MTR-PH-ATC-AQU-HYD
$98.90 ~~$123.62~~
Add to cart
pH Meters
Waterproof pH meter w/ Temperature + Auto Calibration
-45%
pH Meters
Waterproof pH meter w/ Temperature + Auto Calibration
0 out of 5
(0)
SKU: 122
$108.80 ~~$196.83~~
Add to cart
EC Meter, Instruments, ORP Meters, pH Meters, Salinity, TDS Meters, Water
Bluetooth Floating Monitor for EC, Salinity, pH, ORP, and TDS
-42%
EC Meter, Instruments, ORP Meters, pH Meters, Salinity, TDS Meters, Water
Bluetooth Floating Monitor for EC, Salinity, pH, ORP, and TDS
No reviews
0 out of 5
(0)
SKU: MON-EC-PH-TDS-BT
$118.01 ~~$203.76~~
Add to cart
Accessories, Instruments, pH Meters, Sensors / Probes
pH and Chlorine Level Water Quality Tester
-32%
Accessories, Instruments, pH Meters, Sensors / Probes
pH and Chlorine Level Water Quality Tester
0 out of 5
(0)
SKU: TST-PH-CHL-WTR
$118.37 ~~$173.86~~
Add to cart
pH Meters, Soil pH Meters, Water
Waterproof Soil pH / Moisture Solar Meter Solar Powered
-43%
pH Meters, Soil pH Meters, Water
Waterproof Soil pH / Moisture Solar Meter Solar Powered
1 review
0 out of 5
(0)
SKU: 50
$118.70 ~~$209.70~~
Add to cart
pH Meters
Waterproof 2 in 1 pH & Temperature Meter, ATC & Digital Water Quality Tester
-44%
pH Meters
Waterproof 2 in 1 pH & Temperature Meter, ATC & Digital Water Quality Tester
0 out of 5
(0)
SKU: 115
$118.70 ~~$211.68~~
Add to cart
pH Meters
2 in 1 Combo pH & Temperature Meter w/ Replaceable BNC pH Electrode W/ Real Time Continuous Monitoring
-40%
pH Meters
2 in 1 Combo pH & Temperature Meter w/ Replaceable BNC pH Electrode W/ Real Time Continuous Monitoring
0 out of 5
(0)
SKU: 129
$118.70 ~~$198.81~~
Add to cart
Instruments, pH Meters, Salinity, TDS Meters, Water
Smart 5-in-1 Water Quality Tester (pH, TDS, Salt, S.G., Temp) with WIFI
-30%
Instruments, pH Meters, Salinity, TDS Meters, Water
Smart 5-in-1 Water Quality Tester (pH, TDS, Salt, S.G., Temp) with WIFI
0 out of 5
(0)
SKU: TST-WTR-5IN1-WIFI
$118.70 ~~$169.11~~
Add to cart
pH Meters, TDS Meters
3 in 1 Conductivity EC, pH & Temperature Meter Multi Parameter Tester
-34%
pH Meters, TDS Meters
3 in 1 Conductivity EC, pH & Temperature Meter Multi Parameter Tester
0 out of 5
(0)
SKU: 117
$128.60 ~~$195.84~~
Add to cart
pH Meters
Combined pH & Chlorine Meter for Swimming Pool & Spa
-29%
pH Meters
Combined pH & Chlorine Meter for Swimming Pool & Spa
0 out of 5
(0)
SKU: 125
$128.60 ~~$181.98~~
Add to cart
Instruments, pH Meters, Soil pH Meters
Soil pH & Moisture Tester with Long Electrode Probe, 295mm
-35%
Instruments, pH Meters, Soil pH Meters
Soil pH & Moisture Tester with Long Electrode Probe, 295mm
No reviews
0 out of 5
(0)
SKU: TST-SOIL-PH-MOIST
$133.85 ~~$205.74~~
Add to cart
Accessories, EC Meter, Instruments, pH Meters, Salinity, TDS Meters, Temperature, Water
Water Quality Tester (pH, EC, TDS, Salinity, SG, Temperature)
-29%
Accessories, EC Meter, Instruments, pH Meters, Salinity, TDS Meters, Temperature, Water
Water Quality Tester (pH, EC, TDS, Salinity, SG, Temperature)
0 out of 5
(0)
SKU: TST-WTR-QAUL
$137.71 ~~$193.86~~
Add to cart
ORP Meters, pH Meters
3 in 1 Pen Type ORP / PH & Temperature Combo Meter W/ ATC
-39%
ORP Meters, pH Meters
3 in 1 Pen Type ORP / PH & Temperature Combo Meter W/ ATC
0 out of 5
(0)
SKU: 126
$138.50 ~~$225.54~~
Add to cart
Accessories, Instruments, pH Meters, TDS Meters, Water
Digital Combo pH & TDS Monitor Meter Tester Monitor ATC (0.00~14.00pH)
-28%
Accessories, Instruments, pH Meters, TDS Meters, Water
Digital Combo pH & TDS Monitor Meter Tester Monitor ATC (0.00~14.00pH)
0 out of 5
(0)
SKU: MET-PH-TDS-ATC
$151.95 ~~$211.88~~
Add to cart
pH Meters, TDS Meters
PH & EC Conductivity Monitor Meter & Water Quality Tester W/ Real Time Continuous Monitoring
-30%
pH Meters, TDS Meters
PH & EC Conductivity Monitor Meter & Water Quality Tester W/ Real Time Continuous Monitoring
0 out of 5
(0)
SKU: 118
$158.30 ~~$224.55~~
Add to cart
Instruments, ORP Meters, pH Meters, Temperature, Water
3-in-1 pH, ORP, and Temperature Combo Meter Tester with Pen Type and ATC Compensation With Extra Electrode
-10%
Instruments, ORP Meters, pH Meters, Temperature, Water
3-in-1 pH, ORP, and Temperature Combo Meter Tester with Pen Type and ATC Compensation With Extra Electrode
0 out of 5
(0)
SKU: TST-PH-ORP-TMP-CMB
$168.10 ~~$186.58~~
Add to cart
pH Meters, Salinity, TDS Meters
Waterproof Digital Pen Type Multi Paramater 5 in 1 Water Quality Tester (pH / TDS / EC / Temp / Salinity)
-29%
pH Meters, Salinity, TDS Meters
Waterproof Digital Pen Type Multi Paramater 5 in 1 Water Quality Tester (pH / TDS / EC / Temp / Salinity)
0 out of 5
(0)
SKU: 133
$168.20 ~~$237.42~~
Add to cart
Accessories, Instruments, ORP Meters, pH Meters, Temperature
3-in-1 pH Level, mV ORP, and Temperature Redox Meter for Fish Tanks
-10%
Accessories, Instruments, ORP Meters, pH Meters, Temperature
3-in-1 pH Level, mV ORP, and Temperature Redox Meter for Fish Tanks
0 out of 5
(0)
SKU: MTR-PH-ORP-TMP-FISH
$186.32 ~~$208.15~~
Add to cart
pH Meters, TDS Meters, Water
6 in 1 Multifunction Water Quality Tester pH / ORP / EC / CF / TDS / Temperature
-25%
pH Meters, TDS Meters, Water
6 in 1 Multifunction Water Quality Tester pH / ORP / EC / CF / TDS / Temperature
0 out of 5
(0)
SKU: 16
$188.00 ~~$252.27~~
Add to cart
pH Meters, TDS Meters
5 in 1 Multi Parameter PH EC CF TDS (ppm) & Temperature Test Meter
-27%
pH Meters, TDS Meters
5 in 1 Multi Parameter PH EC CF TDS (ppm) & Temperature Test Meter
0 out of 5
(0)
SKU: 132
$188.00 ~~$257.22~~
Add to cart
pH Meters
Digital pH Controller + BNC Electrode CO2
-27%
pH Meters
Digital pH Controller + BNC Electrode CO2
0 out of 5
(0)
SKU: 134
$188.00 ~~$258.21~~
Add to cart
Accessories, Instruments, ORP Meters, pH Meters, Water
Digital pH / ORP Controller with Monitoring and Dosing for Water
-23%
Accessories, Instruments, ORP Meters, pH Meters, Water
Digital pH / ORP Controller with Monitoring and Dosing for Water
0 out of 5
(0)
SKU: CNT-PH-ORP-DOS
$204.83 ~~$265.93~~
Add to cart
Accessories, EC Meter, Instruments, pH Meters, TDS Meters, Temperature, Water
6-in-1 Multi-Function Meter Tester for EC, CF, TDS, pH, °C, °F
-13%
Accessories, EC Meter, Instruments, pH Meters, TDS Meters, Temperature, Water
6-in-1 Multi-Function Meter Tester for EC, CF, TDS, pH, °C, °F
0 out of 5
(0)
SKU: MTR-6IN1-EC-CF-TDS-PH-TMP
$212.65 ~~$243.56~~
Add to cart
pH Meters
Long Glass Tube Pen Type pH Meter & Digital Water Quality Tester W/ Dual Display and Probe
-20%
pH Meters
Long Glass Tube Pen Type pH Meter & Digital Water Quality Tester W/ Dual Display and Probe
0 out of 5
(0)
SKU: 116
$217.70 ~~$272.07~~
Add to cart

Showing 1–48 of 57 resultsSorted by price: low to high

1
2
→

- Show All Categories
- Water (135)

Daily Special

Save $14.17

10x 18mm Handheld Darkfield Loupe with Flashlight

$106.43 ~~$120.60~~

Already Sold: 0 Available: 50000

0

Onsale Products

USB Cable with RS232 CD Software and 2.5mm Diameter Jack - For Landtek Water Activity Meter $78.56 ~~$128.66~~
Gooseneck Fiber Optic Microscope Illuminator + Color Filters $536.78 ~~$565.38~~
Auto Range Multifunction Multimeter with HD LCD Screen Digital $69.29 ~~$79.19~~

Top Rated Products

Digital Salinity Salt Meter Waterproof IP65
Rated 5.00 out of 5
$93.95 ~~$145.35~~
Digital pH Meter
Rated 5.00 out of 5
$25.91 ~~$30.82~~
4 In 1 Digital Soil pH Meter
Rated 5.00 out of 5
$69.96 ~~$76.35~~

Discount Instruments is 100% Australian Owned and Operated.

Contact Us

Submit a Help Request

[email protected]

Customer Service

My Account
Orders
About Us
Shipping
Returns / Refunds
Terms & Conditions
Privacy Policy
Contact Us

Quick Links

Water Quality Testing
Air Quality Testing
Sound Level Testing
Cable Testing
Light Level Testing
Electrical Testing

Find It Fast

Refractometers
ORP Meters
Hygrometers
pH Meters
Soil pH Meters
TDS Meters
EMF Meters

Recent reviews

4 In 1 Digital Soil pH Meter
Rated 5 out of 5
by Andy M
Digital Salinity Salt Meter Waterproof IP65
Rated 5 out of 5
by Rob R
Digital pH Meter
Rated 5 out of 5
by Michael Y

Copyright 2023 Discount instruments | All prices are in AUD and include GST

Customer Service

My Account
Orders
About Us
Shipping
Returns / Refunds
Terms & Conditions
Privacy Policy
Contact Us

Recent reviews

4 In 1 Digital Soil pH Meter
Rated 5 out of 5
by Andy M
Digital Salinity Salt Meter Waterproof IP65
Rated 5 out of 5
by Rob R
Digital pH Meter
Rated 5 out of 5
by Michael Y

Contact Us

Submit A Request
Send Us An Email

3

3

Your Cart

pH Test Strips

Price: $9.80

- +

$9.80

Digital pH and TDS Meter Combo Pack

Digital pH and TDS Meter Combo Pack

Price: $49.90

- +

$49.90

3-in-1 pH, EC, and Temperature Waterproof Water Quality Tester

3-in-1 pH, EC, and Temperature Waterproof Water Quality Tester

Price: $95.63

- +

$95.63

Subtotal $155.33

Shipping, taxes, and discounts calculated at checkout.

View Cart Continue Shopping Checkout