Apera Instruments AI421 PH400S Portable Ph Meter Kit, 0.01 Ph Accuracy, -2.00 to 19.99 pH Range, GLP Data Management (500 Groups of Data Storage), USB Data Output, 1.3" Height, 3.4" Wide, 7" Length







Key features
- •Comes with a 3-in-1 pH combination electrode, measuring pH and temperature simultaneously (±0.01 pH, -2 to 19.99 pH)
- •Advanced 1 to 5 points Auto calibration with calibration guide and reminder
- •GLP data management (500 Groups of data storage), PC software support, USB data output and power supply
- •IP57 waterproof and dustproof, ideal for use in harsh environments
- •The large backlit LCD displays pH and temperature simultaneously along with icons of Stable readings and Finished calibrations
BrandApera Instruments
CategorypH Meters
Apera Instruments AI421 PH400S Portable Ph Meter Kit, 0.01 Ph Accuracy, -2.00 to 19.99 pH Range, GLP Data Management (500 Groups of Data Storage), USB Data Output, 1.3" Height, 3.4" Wide, 7" Length
List Price: $505.92$455.33DEALYou Save: $50.59 (10%)
Free shippingFree Returns – 30 daysFree Order CancellationSecure Payment2–3 Days DeliveryGet It June 24, 2026In Stock (1)No marketing spamNo account requiredFulfilment by FedEx / Amazon / UPS / ShipwirePayPal / Card Buyer Protection






