Choosing between the HealPul SC-31A and SC-32A? Compare the frequency settings, timer controls and charging features you actually need. Both current product listings describe adjustable-frequency generators with ranges that include 7.83Hz. The SC-31A is not a fixed-frequency-only model.
SC-31A vs SC-32A: key specifications
| Listed feature | SC-31A | SC-32A |
|---|---|---|
| Frequency range | 0.01–999.99Hz | 0.001Hz–200kHz |
| Waveforms | Sine and square waves | Multiple modes, including sine and square waves |
| Charging | USB-C | USB-C |
| Battery runtime | Up to 16 hours | Up to 26 hours |
| Timer | Customizable session timer | Programmable 1–24-hour auto-off timer |
| Other features highlighted in the listing | Last-frequency memory and four independent AUX ports | LCD display showing frequency values |
These figures reflect the current HealPul product descriptions. Listed battery runtimes are “up to” figures, not guaranteed durations under every setting. A feature highlighted for one model should not be read as proof that it is absent from the other.
When to consider the SC-31A
Consider the SC-31A if the settings you want fall within 0.01–999.99Hz and its listed memory, timer and AUX-port features match your intended setup. Its range includes 7.83Hz while allowing other settings within that range.
Check the SC-31A product specifications.
When to consider the SC-32A
Consider the SC-32A if you have a specific reason to use its wider listed frequency range, want the listed frequency display, or prefer the stated 1–24-hour auto-off timer. Its product description also lists a longer maximum cordless runtime: up to 26 hours versus up to 16 hours for the SC-31A.
Check the SC-32A product specifications.
Three questions to guide your choice
- Which frequency settings do you actually plan to use?
- Which timer controls and display features matter for your setup?
- Will you usually use the device near a charging point, or is cordless runtime a priority?
Choose according to those practical requirements rather than assuming that a larger frequency range automatically makes a device a better fit.
Frequently asked questions
Can both models be set to 7.83Hz?
Yes. Both frequency ranges stated in the current listings include 7.83Hz.
Do both models support USB-C charging?
Yes. Both current descriptions list USB-C charging and rechargeable battery operation.
Is the SC-31A fixed at 7.83Hz?
No. Although its product name highlights 7.83Hz, its current description lists an adjustable range of 0.01–999.99Hz.
The practical choice
Consider the SC-31A when its listed range and controls meet your requirements. Consider the SC-32A when its wider range, display or timer settings serve a specific purpose for you. Review the current specifications and operating instructions before purchase and use.