Does this unit have auto temp. compensation (atc)?

Yes. This unit has Auto Temperature Compensation from 0 to 50˚C

How often should I change the probe?

If damaged or isnt calibrating correctly. Unsure on longevity.

Why does the tdc function change from ppm to ppt? and, how do you read this in ppm? what does 1.25 ppt mean in ppm?

1 ppt (parts per thousand) = 1,000 ppm (parts per million). 1.25ppt would be 1250 ppm.

for weekly use, How frequently does the probe need to be replaced?

As a rule of thumb, we recommend replacing the one after one year of regular use to ensure the best accuracy.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp. Multi-Parameter Pocket Tester Kit

APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp. Multi-Parameter Pocket Tester Kit

Product ID: 29729162

Details

Brand
Apera
Item Weight
4.7 ounces
Item dimensions L x W x H
7 x 1.6 x 1.6
Material
Plastic
Number of Items
1

💧IP67 waterproof & floating design

📏5-in-1 multi-parameter precision

🔋1000h battery life with auto power-off

AR$536245

Duties & taxes included

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Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Precision Meets Portability — Never Miss a Beat in Water Quality!

COMPLETE PORTABLE KIT - Includes calibration solutions, batteries, lanyard, and carrying case—everything you need to test on the go.
RUGGED READY FOR ACTION - IP67 waterproof, dustproof, and floats—perfect for fieldwork or lab environments without worry.
VIVID BACKLIT LCD DISPLAY - Large dual-display with 3-color backlight for effortless mode recognition and real-time data clarity.
SMART CALIBRATION STABILITY - Auto 1-3 point calibration with smiley icon confirmation ensures flawless, reliable readings every time.
ALL IN ONE WATER QUALITY MASTER - Measure pH, EC, TDS, salinity, and temperature instantly with one sleek device.

The Apera Instruments AI316 PC60 is a professional-grade, 5-in-1 multi-parameter pocket tester designed for rapid, accurate measurement of pH, conductivity, TDS, salinity, and temperature. Featuring a replaceable probe, auto calibration with stability indicators, a large backlit LCD, and IP67 waterproof rating, it’s built for demanding environments like hydroponics, aquaculture, and environmental monitoring. The kit comes fully equipped with calibration solutions, batteries, and a carrying case, offering up to 1000 hours of continuous use and backed by a 2-year warranty.

Specifications

ASIN	B01ENFOIKA
Best Sellers Rank	#14,390 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab Multiparameter Meters
Brand Name	Apera Instruments
Customer Reviews	4.4 4.4 out of 5 stars (1,237)
Global Trade Identification Number	00858718006094
Included Components	PC60 Premium Pocket Multiparameter Tester Kit
Item Dimensions	7 x 1.6 x 1.6 inches
Item Weight	4.7 ounces
Manufacturer	Apera Instruments
Material Type	Plastic
Model	AI316
Number of Items	1
Part Number	AI316
UPC	858718006094
Unit Count	1 Count
Warranty Description	Two-Year limited warranty for the instrument, Six-Month limited warranty for the electrode(s).

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