HM Digital 1000ppm TDS Calibration Solution

Q: What is the difference between the 342 ppm & 1000 ppm calibration solution? I'm not sure which one to buy for my TDS meter

If you are checking your water you should use the 342 ppm to calibrate as most city and well waters can run anywhere from 175-400.. If you are doing hydroponics and need to add juice (Nutz) to the water it is best to use 1000pmm cause you will be reading 800 - 2000 ppm.

Q: Does the 1000 ppm = 2mS/cm?

Believe so - the label says 2000 µs, guessing they mean 2000 µs/cm, so that'd be 2 ms/cm

Q: What TDS meter will the 1000 ppm calibration solution be compatible

its just a control substance. any meter that can measure TDS in the 1000ppm range will work with this.

Product ID: 3671970

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Details

Brand
HM Digital
Item Weight
0.2 Pounds
Item Volume
88.7
Package Information
Bottle
Item Form
Liquid

🧪NIST-traceable lab-grade solution

🧴88.7ml easy-pour HDPE bottle

⚖️1000ppm precise calibration

Description

🧪 Calibrate like a pro—because precision is the new power move.

SECURE FRESH - Sealed with a coated foam liner to maintain solution integrity and longevity.
PRECISION PERFECTED - Calibrate any TDS meter with 1000ppm NaCl solution for unmatched accuracy.
LAB GRADE CONFIDENCE - NIST-traceable formula ensures your readings are scientifically reliable every time.
USER FRIENDLY DESIGN - Wide-mouth HDPE bottle lets you dip your meter directly—no spills, no mess.
UNIVERSAL COMPATIBILITY - Works seamlessly with any brand of TDS or conductivity meter—no limits, no hassle.

The HM Digital 1000ppm TDS Calibration Solution is a premium, NIST-traceable NaCl solution designed to recalibrate any brand of TDS or conductivity meter. Packaged in a convenient 88.7ml wide-mouth HDPE bottle with a secure foam liner seal, it ensures accurate, reliable readings for professionals demanding laboratory-grade precision.

Specifications

Manufacturer	HM Digital, Inc.
UPC	891144000038
Global Trade Identification Number	00891144000038
Part Number	C1000
Item Weight	3.2 ounces
Product Dimensions	1.3 x 3.3 x 1.3 inches
Item model number	716170
Is Discontinued By Manufacturer	No
Size	1000ppm, 88.7ml Capacity
Color	natural
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

What is the difference between the 342 ppm & 1000 ppm calibration solution? I'm not sure which one to buy for my TDS meter

Does the 1000 ppm = 2mS/cm?

What TDS meter will the 1000 ppm calibration solution be compatible

I’m very confused, i have a ubante tds meter and i stuck it in this 1000ppm solution and it reads exactly 500ppm. is my meter off exactly 500ppm?

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