---
product_id: 474461854
title: "Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume"
brand: "hm digital"
price: "124 kr"
currency: DKK
in_stock: false
reviews_count: 5
url: https://www.desertcart.dk/products/474461854-hm-digital-c342-tds-and-ec-calibration-solution-342-ppm
store_origin: DK
region: Denmark
---

# airtight coated foam liner 90 ml sealed volume 342 ppm NaCl precision Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume

**Brand:** hm digital
**Price:** 124 kr
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Calibrate like a pro — precision in every drop!

## Quick Answers

- **What is this?** Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume by hm digital
- **How much does it cost?** 124 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/474461854-hm-digital-c342-tds-and-ec-calibration-solution-342-ppm)

## Best For

- hm digital enthusiasts

## Why This Product

- Trusted hm digital brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Ready-to-Use:** 90 ml volume fits perfectly in any lab or field kit for on-the-go calibration.
- • **Trusted by Professionals:** HM Digital’s reliable formula supports consistent, repeatable measurements.
- • **Airtight Seal for Longevity:** Coated foam liner keeps solution fresh and contamination-free.
- • **Effortless Calibration Experience:** Simple, no-fuss solution that saves time and boosts confidence in your readings.
- • **Precision-Calibrated NaCl Solution:** Ensure your TDS meter reads flawlessly with 342 ppm accuracy.

## Overview

The HM Digital C342 is a 90 ml NaCl calibration solution with a precise 342 ppm concentration, designed to ensure accurate TDS meter readings. Featuring a sealed container with a coated foam liner, it maintains solution integrity for repeated use. Compact and easy to use, it’s a trusted choice for professionals seeking reliable water quality calibration.

## Description

Product description tds meter nacl calibration solution c-342. From the manufacturer tds meter nacl calibration solution c-342

Review: I calibrated my TDS meter just fine. I used a better air tight jar and poured it all into it, that way I can use it multiple times. I will buy again. Delivery good.
Review: Great

## Features

- Nacl calibration solution, available in 342 ppm or 1000 ppm
- Easy to use
- Sealed with a coated foam liner
- Item condition type new
- Package included 1 piece

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001VE99X8 |
| Are batteries included? | No |
| Best Sellers Rank | #55,494 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,167 in Lab Chemicals |
| Colour | Others |
| Customer Reviews | 4.4 4.4 out of 5 stars (819) |
| Date First Available | 7 August 2012 |
| Global Trade Identification Number | 00891144000014 |
| Included Components | 1 |
| Item Dimensions LxWxH | 44 x 44 x 76 Millimeters |
| Item Height | 3 Inches |
| Item Weight | 100 g |
| Item Width | 1.75 Inches |
| Item model number | C-342 |
| Manufacturer | HM Digital |
| Material Type | Others |
| Model number | C-342 |
| Number of Memory Sticks | 1 |
| Product Dimensions | 4.45 x 4.45 x 7.62 cm; 100 g |

## Product Details

- **Brand:** HM Digital
- **Item Volume:** 90 Millilitres
- **Item Weight:** 100 Grams
- **Manufacturer:** HM Digital
- **UPC:** 891144000014

## Images

![Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume - Image 1](https://m.media-amazon.com/images/I/31EdoXtavdL.jpg)
![Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume - Image 2](https://m.media-amazon.com/images/I/41Ewcy8YSML.jpg)
![Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume - Image 3](https://m.media-amazon.com/images/I/61U5LTc9u8L.jpg)
![Hm Digital C342 Tds and Ec Calibration Solution 342 Ppm Nacl 90 Ml Volume - Image 4](https://m.media-amazon.com/images/I/71o0Ok-W+WL.jpg)

## Questions & Answers

**Q: What is the shelf life?**
A: Room temp. indefinitely.  You will use it up before it gets really old.

**Q: Whats the ppm at 19 degree Celsius? or 18.6? The box only states the ppm of the solution at 25C which is is 342 ppm**
A: I doubt the actual PPM is much different between 19C and 25C.  TDS/EC meters are typically sensitive to temperature and some include a temperature sensor for automatic correction.  Others that don't automatically compensate for temperature and may need a "look-up" to correct during the calibration.  In either case, the reference solution concentration probably doesn't change much as a function of temperature.  Good luck with your TDS calibration!

**Q: Can you mix this with 1000 solution to get 680ish ppm mix?**
A: All you need to do to create a 680 ppm test solution is add .068 grams of table salt to 100ml of distilled or RODI water and dissolve and viola you have a 680 ppm test solution.

**Q: What screwdriver is used to calibrate this meter? The little ones I've used don't turn anything.**
A: Usually there is a small area on the back of the meter that takes a tiny Phillips head screwdriver. You would put the meter in the solution and then use the screwdriver to make sure it's reading 342.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***O on 16 April 2025*

I calibrated my TDS meter just fine. I used a better air tight jar and poured it all into it, that way I can use it multiple times. I will buy again. Delivery good.

### ⭐⭐⭐⭐⭐ Review
*by C***Y on 7 December 2020*

Great

### ⭐⭐⭐⭐⭐ Review
*by M***U on 5 December 2022*

Excellent product!

## Frequently Bought Together

- HM Digital C342 TDS and EC Calibration Solution, 342 ppm (NaCl), 90 ml Volume, Transparent/Blue
- HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy
- HM Digital 1000ppm TDS Calibration Solution

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-23*