Digital Pen type Conductivity Meter LH-C661

• Waterproof design

• Electrode upgraded with temperature sensor

• Automatic Temperature Compensation

• Easy one point calibration

• HOLD function

• LCD backlight

• Low battery alarm

1. Introduction

When the original economic pen type conductivity meter was first introduced, conductivity and total dissolved solids measurements became easy and affordable. The LH-C661 is easy to use, in combination with its affordability made it the standard in EC and TDS measurement.

The electrode of LH-C661 is a combination of conductivity electrode and temperature sensor, make it possible to auto compensate the error caused by temperature changes during the measuring.

High resolution 1µs/cm meets many requirements in many fields.

2. Technical data

3. Order information

The LH-C661 is supplied with screwdriver, protective box, operation manual in English and lithium batteries inside the meter.

What is EC?

Electrical Conductivity (EC) is defined by the ability of a solution to conduct an electrical current.

What is TDS?

Total Dissolved Solids (TDS) is defined as the amount of solids dissolved in a solution.

How does an EC/TDS meter work?

Two electrodes with an applied AC voltage are placed in the solution. This creates a current dependent upon the conductive nature of the solution. The meter reads this current and displays in either conductivity (EC) or ppm (TDS).

How is TDS measured?

By means of a conductivity meter. The conductivity is measured and the TDS is calculated by a fixed mathematical formula in the meter.

What is the difference between microSiemens and milliSiemens?

Both are units of conductivity. 1000 microSiemens (µS) = 1 milliSiemen (mS).

If I have a TDS meter with a 0.5 conversion factor how do I convert to the correct 0.7 value?

Multiply by 1.4; ex: 500 x 1.4 = 700.

Q: How do I pay for my purchase?

A: we accept the following payment methods: Paypay; T/T; western union. We will send a Proforma Invoice to you.

Q: How much does it cost to ship to my country?
A: We use expresses like DHL, EMS, Fedex, and so on. We provide a big discount of shipping fee.

Q: Is there any tracking Number for my item?
A: Yes, we ship every order with their Tracking Number, and you can view the shipment status on the corresponding website.

Q: Does this product come with retail package?
A: We have declared the packing detail on the description of each product, please check it, thank you!

Q: I am a local dealer, I would like to buy many pieces of your item, what’s the wholesale price?
A: Hi, thanks for your inquiry, if you would like to buy large quantity, please send email to us, we will give you the best price, thanks!