Just to be sure, this will detect salinity fluctuations of coastal marine water (35 ppt)?!

The max salinity for this meter is 9.99g/L (parts per thousand). So if you know the water is in the range of 35ppt, you can't make direct measurements. But, you could dilute the sample (say 10x) in the field using bottled water (has a salinity <<< sample) or DI water and that would put you at 3.5g/L roughly. You should be able to detect fluctuations at 0.1ppt on the diluted water which translates into detecting 1ppt fluctuations in the water.

is the Exstick EC500 come with calibration certificate ?

No, it does not, but we can get you a Certificate of Conformance from Extech, when you purchase this product from our Amazon Store.

how does it give two readings

Salinity in ppm Conductivity. And total dissolved solids. I really like this meter. Used it for jar tests this summer

Can this be used in soil?

Hi This product can not be used in soil.

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Extech EC500 Waterproof ExStik II pH/Conductivity Meter

Extech EC500 Waterproof ExStik II pH/Conductivity Meter

Q: is the Exstick EC500 come with calibration certificate ?

No, it does not, but we can get you a Certificate of Conformance from Extech, when you purchase this product from our Amazon Store.

Q: how does it give two readings

Salinity in ppm Conductivity. And total dissolved solids. I really like this meter. Used it for jar tests this summer

Q: Can this be used in soil?

Hi This product can not be used in soil.

Product ID: 7003674

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Details

Brand
Extech
Material
Acrylonitrile
Item dimensions L x W x H
1.1 x 1.9 x
Item Weight
0.11 Kilograms
UPC
793950055007

💧Waterproof & durable ABS build

🧠Memory stores 25 labeled readings

🌡️5-in-1 multi-parameter sensor

Description

💼 Elevate your fieldwork with precision and style — never miss a measurement again!

READY WHEN YOU ARE - Includes batteries, protective cap, sample cup, and a 48-inch neckstrap for ultimate portability.
TREND TRACKING MADE EASY - Analog bargraph visually indicates real-time trends for instant insights on the go.
BUILT TO BRAVE THE ELEMENTS - Waterproof design crafted from rugged ABS for reliable field use, rain or shine.
PRECISION MEETS VERSATILITY - Measures pH, conductivity, TDS, salinity, and temperature with one sleek electrode.
SMART DATA AT YOUR FINGERTIPS - Stores up to 25 labeled readings so you never lose track of your critical measurements.

The Extech EC500 Waterproof ExStik II is a compact, high-accuracy meter that measures five key water quality parameters—pH, conductivity, TDS, salinity, and temperature—using a single flat surface electrode. Designed for professionals who demand reliable, on-the-spot readings, it features a waterproof ABS body, memory for 25 labeled readings, an analog trend bargraph, and comes complete with essential accessories for immediate use.

Specifications

Brand	Extech
Material	Acrylonitrile Butadiene Styrene (ABS)
Item dimensions L x W x H	1.1 x 1.9 x 4.5 inches
Item Weight	0.11 Kilograms
UPC	793950055007
Global Trade Identification Number	00793950055007
Manufacturer	Extech
Part Number	EC500
Item Weight	3.87 ounces
Product Dimensions	1.1 x 1.9 x 4.5 inches
Item model number	EC500
Batteries	4 Lithium Metal batteries required. (included)
Is Discontinued By Manufacturer	No
Style	EC500
Item Package Quantity	1
Number Of Pieces	1
Measurement Accuracy	+/-0.5%
Included Components	Extech EC500 Waterproof ExStik II pH/Conductivity Meter
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
Warranty Description	1 year

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