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Oakton (WD-35624-38) pH Tester 3-3+ Replacement Probe

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Oakton (WD-35624-38) pH Tester 3-3+ Replacement Probe

The Oakton WD-35624-38 is a factory-direct replacement pH probe engineered specifically for Oakton pHTestr 3 and 3+ pocket meters. This sealed, gel-filled electrode maintains consistent accuracy across the full 0-14 pH range with fast response times in aqueous solutions.
SPECIFICATIONS

Replacement Probe Technical Data

Model Number WD-35624-38
Compatible Meters Oakton pHTestr 10, 20, 30 Series (OK3563410, OK3563420, OK3563430)
Measurement Range 0.00 to 14.00 pH
Electrode Type Sealed gel-filled reference
Junction Type Ceramic pin junction
Response Time Less than 10 seconds
Temperature Range 0 to 50°C (32 to 122°F)
COMPATIBILITY & APPLICATIONS

When You Need This Probe

This replacement sensor restores full functionality to Oakton pHTestr 3 and 3+ pocket meters when the original probe shows drift, slow response, or physical damage. The sealed gel design requires no filling or maintenance, making it ideal for field testing in water treatment, aquariums, hydroponics, pools, and industrial process control. Compatible with all 10, 20, and 30 series pHTestr models, the probe maintains factory calibration standards and delivers lab-grade accuracy in a portable format.

💧 Store the probe in pH 4 or 7 buffer solution between uses to extend electrode life and maintain fast response times. Never store dry or in distilled water, which shortens sensor lifespan significantly.
The Oakton WD-35624-38 is a factory-direct replacement pH probe engineered specifically for Oakton pHTestr 3 and 3+ pocket meters. This sealed, gel-filled electrode maintains consistent accuracy across the full 0-14 pH range with fast response times in aqueous solutions.
SPECIFICATIONS

Replacement Probe Technical Data

Model Number WD-35624-38
Compatible Meters Oakton pHTestr 10, 20, 30 Series (OK3563410, OK3563420, OK3563430)
Measurement Range 0.00 to 14.00 pH
Electrode Type Sealed gel-filled reference
Junction Type Ceramic pin junction
Response Time Less than 10 seconds
Temperature Range 0 to 50°C (32 to 122°F)
COMPATIBILITY & APPLICATIONS

When You Need This Probe

This replacement sensor restores full functionality to Oakton pHTestr 3 and 3+ pocket meters when the original probe shows drift, slow response, or physical damage. The sealed gel design requires no filling or maintenance, making it ideal for field testing in water treatment, aquariums, hydroponics, pools, and industrial process control. Compatible with all 10, 20, and 30 series pHTestr models, the probe maintains factory calibration standards and delivers lab-grade accuracy in a portable format.

💧 Store the probe in pH 4 or 7 buffer solution between uses to extend electrode life and maintain fast response times. Never store dry or in distilled water, which shortens sensor lifespan significantly.
$68.39

Original: $195.41

-65%
Oakton (WD-35624-38) pH Tester 3-3+ Replacement Probe—

$195.41

$68.39

Description

The Oakton WD-35624-38 is a factory-direct replacement pH probe engineered specifically for Oakton pHTestr 3 and 3+ pocket meters. This sealed, gel-filled electrode maintains consistent accuracy across the full 0-14 pH range with fast response times in aqueous solutions.
SPECIFICATIONS

Replacement Probe Technical Data

Model Number WD-35624-38
Compatible Meters Oakton pHTestr 10, 20, 30 Series (OK3563410, OK3563420, OK3563430)
Measurement Range 0.00 to 14.00 pH
Electrode Type Sealed gel-filled reference
Junction Type Ceramic pin junction
Response Time Less than 10 seconds
Temperature Range 0 to 50°C (32 to 122°F)
COMPATIBILITY & APPLICATIONS

When You Need This Probe

This replacement sensor restores full functionality to Oakton pHTestr 3 and 3+ pocket meters when the original probe shows drift, slow response, or physical damage. The sealed gel design requires no filling or maintenance, making it ideal for field testing in water treatment, aquariums, hydroponics, pools, and industrial process control. Compatible with all 10, 20, and 30 series pHTestr models, the probe maintains factory calibration standards and delivers lab-grade accuracy in a portable format.

💧 Store the probe in pH 4 or 7 buffer solution between uses to extend electrode life and maintain fast response times. Never store dry or in distilled water, which shortens sensor lifespan significantly.
Oakton (WD-35624-38) pH Tester 3-3+ Replacement Probe | Isopure Water