Crystal Oscillator Testers Compared: 3 Listings
As an Amazon Associate we earn from qualifying purchases.
A crystal oscillator tester is a small frequency counter that reads the frequency of a crystal oscillator. This page compares three listings whose titles name a crystal oscillator tester with a 1Hz-50MHz range. For each one it reports what the listing states about the frequency range, the power options, the display, the accuracy and whether assembly is needed.
All three titles call the product a DIY kit, and the HUABAN bullets say the parts must be assembled by the buyer. Whether you want to build the unit yourself is therefore the first thing to settle. Listing data was checked on 2026-10-20.
Quick answer
All three titles state a 1Hz-50MHz frequency range, so on that point the listings match. The HUABAN listing is the only one that also states a crystal test range, about 4 MHz to 48 MHz, and it states that the 32.768 kHz range is not included. If that test range matters for your crystals, the HUABAN listing is the one that gives it.
Assembly is the other difference. The HUABAN listing says the parts must be assembled by the buyer. The Truloven listing is titled a DIY kit, and the Jiayouy listing is titled a DIY LED kit, but neither bullet text says whether assembly is needed.
Comparison table
| Listing | Stated frequency range | Stated crystal test range | Power | Stated accuracy and display | Assembly |
|---|---|---|---|---|---|
| Jiayouy crystal oscillator tester, DIY LED kit (first listing) | 1Hz-50MHz (title) | Not stated | USB, or 5-12 V or 9 V battery for external power (bullets) | Not stated; automatic range conversion (bullets) | Not stated |
| Truloven 1Hz-50MHz crystal oscillator tester, DIY kit (second listing) | 1Hz-50MHz (title and bullets) | Not stated | USB 5V powered (bullets) | ±0.01% (±100ppm), 1Hz resolution, 5-digit LED display (bullets) | Not stated |
| HUABAN 2 pack crystal oscillator tester, LED DIY kit (third listing) | 1Hz-50MHz (title and bullets) | About 4MHz-48MHz, not including 32.768 kHz (bullets) | USB 5V or DC 5-12V (bullets); corded electric (specification field) | Five-digit resolution (bullets); no accuracy figure | Buyer assembles the parts (bullets) |
The first listing: Jiayouy crystal oscillator tester, DIY LED kit
The listing names Jiayouy and carries a title that calls the product a 1Hz-50MHz crystal oscillator tester, frequency counter tester and measuring meter, sold in a durable case as a DIY LED kit. Its specification fields give dimensions of 5.91 x 4.21 x 1.02 inches and an item weight of 0.352 ounces. The date first available is listed as May 14, 2019.
The bullets describe a transparent casing, a programmable addition and subtraction frequency setting for measuring radio transceivers and other equipment, and automatic range conversion. They say the tester can measure the most commonly used crystal oscillation frequencies. The power saving mode closes the display after 15 seconds without a frequency change, and the listing says the unit runs from USB, from a 5 to 12 V supply or from a 9 V battery.
- Frequency range: 1Hz-50MHz (title)
- Power: USB, 5-12 V, or 9 V battery (bullets)
- Display: power saving closes the display after 15 seconds of no change (bullets)
- Weight: 0.352 ounces (specification field)
The listing states no accuracy figure and no resolution figure. It is the only one of the three that describes a programmable frequency offset, which the bullets link to transceiver work.
The second listing: Truloven 1Hz-50MHz crystal oscillator tester DIY kit
The listing names Truloven and carries a title for a 1Hz-50MHz crystal oscillator tester DIY kit, with a digital LED frequency counter and cymometer for electronic experiments. Its specification fields give product dimensions of 6 x 3 x 1 inches, an item weight of 1.58 ounces and a date first available of May 25, 2026.
The bullets are the most detailed of the three. They state an accuracy of ±0.01% (±100ppm), a resolution of 1Hz and a 5-digit LED display. They give an input impedance of 1MΩ, a sensitivity of 10mVrms, and a USB 5V power supply. They also give a single-unit size of 79×62mm and a single-unit weight of 60g, and a package size of 10×8×3cm with a total weight of 190g.
- Frequency range: 1Hz-50MHz (title and bullets)
- Accuracy: ±0.01% (±100ppm); resolution 1Hz; 5-digit LED display (bullets)
- Input: 1MΩ impedance, 10mVrms sensitivity (bullets)
- Power: USB 5V (bullets)
The bullets begin with “2 Pack Crystal Oscillator Tester”, while the title does not state a count. The listing does not explain which count the buyer receives, so check the count on the product page before ordering.
The third listing: HUABAN 2 pack crystal oscillator tester
The listing names HUABAN and carries a title for a 2 pack crystal oscillator tester with 1Hz-50MHz frequency counter and cymometer modules, sold as an LED DIY kit. Its specification fields give a power source of corded electric, a minimum operating voltage of 5 volts, a unit count of 2, a style of Compact and a weight of 1.38 ounces. The part number is HXJ10005UP-2PCS.
The bullets describe the product type as a crystal oscillator frequency counter with a frequency range of 1Hz to 50MHz. They state a crystal test range of about 4MHz to 48MHz and say it does not include 32.768 kHz. They give a five-digit resolution, a board size of 80 x 53 x 2 mm, a net weight of about 39 g, and a power supply of USB 5V or DC 5 to 12V. They also say the package holds two sets of parts that the buyer must assemble.
- Frequency range: 1Hz-50MHz (title and bullets)
- Crystal test range: about 4MHz-48MHz, not including 32.768 kHz (bullets)
- Power: USB 5V or DC 5-12V (bullets)
- Assembly: buyer assembles the parts (bullets)
- Weight: 1.38 ounces (specification field); about 39 g net (bullets)
The HUABAN listing is the only one of the three that states the crystal test range and the assembly step. Its weight figures agree with each other, since 39 g is about 1.38 ounces.
How these three were chosen
Each listing above has a title that names a crystal oscillator tester with a 1Hz-50MHz range. Other products in related results, including multimeters, circuit testers and a network cable tester, are left out because they do not measure crystal oscillators. Figures come from each listing’s own fields and bullets, and all three listings were checked on 2026-10-20.
Worked example: the accuracy band and the crystal test range
Start with the Truloven accuracy figure. A stated accuracy of ±0.01% is the same as ±100 ppm. At a 10 MHz reading, a ±0.01% band is 10,000,000 Hz multiplied by 0.0001, which is ±1,000 Hz. The listing does not say whether that band applies across the whole 1Hz-50MHz range, so use the figure as the listing’s own statement only.
Next take the HUABAN crystal test range. A 32 MHz crystal falls inside the stated 4 MHz to 48 MHz band. A 32.768 kHz crystal, a common clock frequency, falls outside it, because the listing excludes that frequency. Neither of the other two listings states a crystal test range, so their coverage of a given crystal cannot be read from the listing text.
The weight figures show a related point. The Truloven bullets give a single-unit weight of 60 g, while its specification field gives an item weight of 1.58 ounces, which is about 45 g. The two figures differ by about 15 g, and the listing does not say which one describes the unit you would receive.
What the listings do not say
- Neither the first nor the third listing gives an accuracy figure in its bullets, and the first gives no resolution figure.
- The first listing does not state a crystal test range, so its coverage of the 4 MHz to 48 MHz band cannot be compared.
- The second listing’s count, one or two, is not explained, and it does not say whether assembly is needed.
- None of the three states a display update rate or a measurement time.
- The third listing’s power field reads corded electric, while its bullets describe USB or DC supply. The field is a labeling detail to confirm.
Related buying guides
For other checks that sit near crystal work, the ESR tester guide covers component checks, the capacitance tester guide covers the capacitors used beside crystals, and the multimeter guide covers general measurement tools.
FAQ
Do all three listings state the same frequency range?
Yes. The title of each listing states a 1Hz-50MHz range. The HUABAN bullets repeat that range and add a separate crystal test range.
Which listing states a crystal test range?
Only the HUABAN listing states one. Its bullets give about 4MHz to 48MHz and say the 32.768 kHz range is not included.
Which listing needs assembly?
The HUABAN listing says the buyer assembles the parts. The other two are titled DIY kits, but their listing text does not say whether assembly is needed.
What accuracy does the listing state?
The Truloven listing states ±0.01% (±100ppm). The other two listings state no accuracy figure in their text.
What should I confirm before buying?
Confirm the frequency and crystal range you need, whether you want a finished unit or a kit, and the number of units in the package. Check the current product page for each.
Bottom line
All three listings state the same 1Hz-50MHz frequency range. The Truloven listing gives the most figures, including an accuracy band, and the HUABAN listing gives the only crystal test range and the only assembly statement. The Jiayouy listing is the one that describes a programmable frequency offset. Choose by whether you need a stated crystal range, an accuracy figure or a kit you assemble, and confirm the rest on the product page.
