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.

Deliver to Vanuatu

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter

Extech EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature 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: 7108933

Secure Transaction

Details

Brand
Extech
Material
Plastic
Item dimensions L x W x H
6.8 x 1.6 x
Item Weight
0.12 Kilograms
UPC
767654910399

💧Measures conductivity, TDS, salinity & temp simultaneously

🧠Stores up to 15 labeled readings for quick recall

⚙️Adjustable conductivity to TDS ratio from 0.4 to 1.0

Description

💧 Stay ahead with precision—measure smarter, not harder!

RUGGED READY - Waterproof design and included protective cap ensure durability for any field or lab environment.
SMART MEMORY RECALL - Never lose track—store and label up to 15 readings for seamless data management on the go.
EFFORTLESS OPERATION - Self-calibrates on power-up and features interchangeable cell constants for fast, repeatable testing.
CUSTOMIZABLE CALIBRATION - Fine-tune your measurements with an adjustable conductivity to TDS ratio, tailored to your specific needs.
MULTI PARAMETER PRECISION - Get instant, accurate readings of conductivity, TDS, salinity, and temperature—all in one sleek device.

The Extech EC400 ExStik is a compact, waterproof meter engineered for professionals needing fast, reliable measurements of conductivity, TDS, salinity, and temperature. Featuring advanced microprocessor and patented sensor technology, it stores up to 15 labeled readings, offers adjustable conductivity to TDS ratio, and self-calibrates for consistent accuracy. Lightweight and rugged, it’s the ultimate tool for precise water quality analysis anytime, anywhere.

Specifications

Brand	Extech
Material	Plastic
Item dimensions L x W x H	6.8 x 1.6 x 1.4 inches
Item Weight	0.12 Kilograms
UPC	767654910399 793950054000
Global Trade Identification Number	00793950054000
Manufacturer	Extech
Part Number	EC400
Item Weight	4.2 ounces
Product Dimensions	6.8 x 1.6 x 1.4 inches
Item model number	EC400
Batteries	4 Lithium Metal batteries required. (included)
Is Discontinued By Manufacturer	No
Style	EC400
Item Package Quantity	1
Number Of Pieces	1
Measurement Accuracy	+/-.5%
Included Components	EC400 ExStik Waterproof Conductivity, TDS, Salinity, and Temperature Meter
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Lithium Metal
Warranty Description	1 year (meter only)

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products