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 and Conductivity Meter | 5 parameters: conductivity, TDS, salinity, pH, temp; 9 units, analog bargraph, stores 25 readings

Extech EC500 Waterproof ExStik II pH and Conductivity Meter | 5 parameters: conductivity, TDS, salinity, pH, temp; 9 units, analog bargraph, stores 25 readings

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

Details

Brand
Extech
Item Weight
0.11 kg
Item dimensions L x W x H
1.1 x 1.9 x
Material
Acrylonitrile
Number of Items
1

💧Waterproof & durable ABS casing

💾Stores 25 labeled readings

🌡️5-in-1 multi-parameter sensor

₨160481

Duties & taxes included

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Stay sharp, measure smart — the ultimate 5-in-1 meter for pros on the move!

RUGGED READY - Waterproof ABS construction with a protective sensor cap and neckstrap ensures durability and convenience in any environment.
ALL IN ONE PRECISION - Measure conductivity, TDS, salinity, pH, and temperature with a single flat surface electrode for rapid, reliable results.
VERSATILE UNIT SELECTION - Switch seamlessly between 9 measurement units including pH, µS/cm, ppm, and °C/°F to suit any lab or field standard.
MEMORY THAT WORKS FOR YOU - Save up to 25 labeled readings on the device, perfect for on-the-go professionals who demand data continuity.
TREND TRACKING ANALOG BARGRAPH - Visualize real-time data trends instantly with the intuitive analog bargraph—stay ahead of fluctuations.

The Extech EC500 Waterproof ExStik II is a compact, high-accuracy multi-parameter meter that measures conductivity, TDS, salinity, pH, and temperature using a single flat surface electrode. Featuring an analog bargraph for trend visualization, memory storage for 25 labeled readings, and a rugged waterproof ABS body, it’s designed for professionals who need reliable, versatile measurements in the field or lab.

Specifications

ASIN	B000NI4AUA
Best Sellers Rank	#206,590 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #190 in Lab pH Meters
Brand Name	Extech
Customer Reviews	4.2 4.2 out of 5 stars (55)
Global Trade Identification Number	00793950055007
Included Components	Extech EC500 Waterproof ExStik II pH/Conductivity Meter
Item Dimensions	1.1 x 1.9 x 4.5 inches
Item Weight	0.11 kg
Manufacturer	Extech
Material Type	Acrylonitrile Butadiene Styrene (ABS)
Model	EC500
Part Number	EC500
Thread Style	Bspt
UPC	793950055007
Unit Count	1 Count
Warranty Description	1 year

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