---
product_id: 624833622
title: "Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)"
brand: "koolertron"
price: "₨199579"
currency: LKR
in_stock: false
reviews_count: 5
category: "Koolertron"
url: https://www.desertcart.lk/products/624833622-koolertron-upgraded-15mhz-dds-signal-generator-counter-high-precision-dual
store_origin: LK
region: Sri Lanka
---

# Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz)

**Brand:** koolertron
**Price:** ₨199579
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) by koolertron
- **How much does it cost?** ₨199579 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/624833622-koolertron-upgraded-15mhz-dds-signal-generator-counter-high-precision-dual)

## Best For

- koolertron enthusiasts

## Why This Product

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

## Description

Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) : desertcart.in: Industrial & Scientific

Review: This is a great audio generator for the money. It's stable, has a clean output, tons of features and it's really easy to use. The screen is well lit, and it only takes a short time to learn the UI. I work on audio gear, and it's got everything that I need. The stability is good enough for my wow/flutter test, and the multifrequency waveform is perfect to troubleshoot filters. Everything works like it should. The only negative would be the thing is so light, you have to have a hand on top when you push a button or you'll push it off the shelf. Tie it down some way, or just learn to hold it while you use the buttons. I'm very happy with mine.
Review: Good value for the money, not for every day use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07211YWMK |
| Are batteries included? | No |
| Brand | Koolertron |
| Country of Origin | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (441) |
| Date First Available | 21 December 2017 |
| Item Weight | 930 g |
| Item model number | GH-CJDS66 |
| Manufacturer | Koolertron |
| Model number | GH-CJDS66 |
| Package Dimensions | 25.3 x 23.9 x 11.3 cm; 929.86 g |

## Images

![Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) - Image 1](https://m.media-amazon.com/images/I/415Yr7WHNRL.jpg)
![Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) - Image 2](https://m.media-amazon.com/images/I/41J43JFyhYL.jpg)
![Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) - Image 3](https://m.media-amazon.com/images/I/41TzC2wu4vL.jpg)
![Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) - Image 4](https://m.media-amazon.com/images/I/41icLJ56b9L.jpg)
![Koolertron Upgraded 15MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (15MHz) - Image 5](https://m.media-amazon.com/images/I/41wNntGiLGL.jpg)

## Questions & Answers

**Q: How many volts does the generator put out?**
A: The settings allow you to enter up to 20volts.  Open circuit, I read a max of 21 volts peak to peak.  When connected to a 50 ohm load, the voltage measured drops in half (I assume that the impedance of the Koolertron is 50 ohms, so attaching a 50 ohm load would cut the voltage in half).  The difference between the setting and what I measured on my scope could be calibration of either device.  I am reading some noise on the signal, so that could also be causing the slight difference.

Hope that helps.

**Q: Can it generate a 20 Hz sine wave and add 50-60 Hz to it?**
A: Yes,It can generate a 20 Hz sine wave. But what do you meanning of  "add 50-60 Hz to it"?
If you have any problem can feel free to contact our customer service  email"karstonecorp@gmail.com ",we are glad to service our customer.

**Q: What does “Full range of 0.01μHz frequency resolution” mean exactly 2digits**
A: It is means 0.00000001Hz.

**Q: What's the maximum current it can put out?**
A: the maximum output current is 0.1A

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by W***E on 26 May 2020*

This is a great audio generator for the money. It's stable, has a clean output, tons of features and it's really easy to use. The screen is well lit, and it only takes a short time to learn the UI. I work on audio gear, and it's got everything that I need. The stability is good enough for my wow/flutter test, and the multifrequency waveform is perfect to troubleshoot filters. Everything works like it should. The only negative would be the thing is so light, you have to have a hand on top when you push a button or you'll push it off the shelf. Tie it down some way, or just learn to hold it while you use the buttons. I'm very happy with mine.

### ⭐⭐⭐⭐⭐ Review
*by W***T on 20 November 2025*

Good value for the money, not for every day use

### ⭐⭐⭐⭐ Review
*by A***R on 6 March 2021*

I have only used this for about 2 hours so don't consider this a complete review. First the bad: The BNC jacks or cables are defective but mostly usable. Just breathing on where the cables connect to the machine creates horrible noise visible on an oscilloscope even when the channel is turned off. Some weights on the cables to keep them still is a kludgy fix. The cable is also very stiff compared to oscilloscope cables. Finding the sweet spot where the signal is clear and uninterrupted reminds me of the old days of doing reception ballet with old TV sets. I'm not yet 100% certain, but the voltage might randomly jump up and down slightly ( a few mV @ 1V) when going from one frequency to another. The 2nd channel has the same noise problem. The display for it is small and hard to see. But may be a good tradeoff so that the 1st channel is easier to see on the smallish screen. The good: The user interface is very intuitive. I didn't need the manual to figure out how to change frequency, amplitude, waveform, or do sweeps. It is actually the best I've seen on electronics test equipment. It boots up quickly. Just eyeballing it, but it seems reasonably accurate. They went to great pains to keep the price down. Other: It is very lightweight because the plastic case is mostly full of air. It is powered by low voltage from a wallwart(ugh), but that means it could easily be made battery powered and portable. There is plenty of room in the case to add a battery pack. Its brain appears to be made by Lattice Semiconductor, I can't see exactly which chip but I assume it is an FPGA. There is a place for a 6(?) pin header on the mainboard, and a 5(?) pin header on the front panel interior which may be handy for hacking it. There are also 4 very small, cellphone antenna like sockets on the mainboard, likely for testing, but which could possibly find other uses. Except for screwing up the cables (or sockets) manufacturing, I'd say this is a good value for price. It is probably good enough for hobbyists getting their electronics feet wet, high school students, and curious characters. Obviously it isn't intended for advanced hobbyists, scientists or electronics engineers, or those who just like the feel of high quality. Although I fall into one of the former categories, I wish I had spent 3x more for a something like a Rigol. I think I would feel differently if they had just gone the extra meter and spent a few more cents on the connectors and added rubber feet for grip so that I wouldn't feel like the magic smoke will puff out of it soon and to help me trust it a bit more as far as accuracy and that that horrendous noise won't damage delicate components.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-11*