ET232 and ET312B Comparison and Specifications
| Specification |
ET-232 Portable |
ET-312 Advanced Dual Channel |
| Channels |
2 Independent/Isolated |
2 (Independent/Isolated) + Phantom 3rd Channel (TriPhase Output) |
| Display |
2 Blue Output LEDs |
32 Character Lighted LCD + LEDs |
| Operating Modes |
15 modes including audio and HiFrequency (300Hz) mode |
18 – 12 normal, 3 audio, 3 tri-phase |
| Audio Processing |
TENS style modulation |
Multiple Advanced TENS style modulation |
| Remote Control |
– |
– |
| Controls |
2 output level controls, MultiAdjust control, 1 mode select/power control |
2 output level controls, MultiAdjust control, 4 Tactile Input Keys |
| Dynamic Pulse Technology Parameters |
Dynamically adjusted amplitude, modulation, pulse width, rate, frequency, duration, power & more via the MultiAdjust (MA) control |
Dynamically and manually adjusted amplitude, modulation, pulse width, rate, frequency, duration, ramp, power, audio sensitivity & more |
| Output Waveform |
Symmetrical AC True Bipolar |
Symmetrical AC True Bipolar |
| Nominal Output Power |
60 micro coulombs per pulse |
80 micro coulombs per pulse |
| Output Jack(s) |
2 x 3.5mm (1/8″) |
2 x 3.5mm (1/8″) Heavy Duty |
| Pulse Width |
0 – 500 usec dynamically adjusted |
0 – 500 usec dynamically adjusted |
| Microphone |
Built-in high sensitivity |
Supplied external electret |
| Audio Input |
Built in microphone or line input (mono) |
3.5mm stereo line, 10k ohms, 3 volts RMS max & 3.5mm mono microphone |
| ErosLink Interface |
3.5mm Link Jack – info |
3.5mm Link Jack – PC and Mac OS X |
| Disposable Battery |
Standard 9 Volt Alkaline |
– |
| Rechargeable Battery |
– |
12v High Capacity 1000 charge cycles |
| AC Power |
UL Listed 12 volt Adapter/Charger |
UL Listed 12 volt Adapter/Charger 400+ma |
| Battery Life |
4 – 8 hours (alkaline) |
4 – 48 hours |
| Dimensions (approx.) |
3.3″ wide, 4.4″ long, 1.5″ high |
8″ wide, 6.75″ deep, 2.5″ high |
| Weight (w/ battery) |
8 oz |
2 lbs 14 oz |
| Shipping Weight |
approximately 2 lbs |
approximately 5 lbs |
| Supplied Accessories |
AC adapter/charger, 9-volt battery, two banana plug output cables, color user guide |
AC adapter/charger, microphone, two banana plug output cables, audio cable, 22 page user guide |
| Options |
ErosLink Software Package, Link Cable, International AC adapters |
Your ‘Contact’ form doesn’t work for sending emails. I want to know if the 302R works with 9 or 7.2v rechargeable batteries. Thanks
The contact form is being looked into, since it works for many people but not some. I think it has something to do with the Captcha code timing out if it takes more than a minute or two to fill out the comment field and submit. You can always email us at sales@erostek.com also.
The ET302R and ET232 can use rechargeable 9-volt batteries, but for best results, we recommend alkaline batteries for these units. Never attach a 9-volt battery eliminator (aka “adapter”) in place of the battery in any case. The 302R (remote) unit operates on batteries only. No adapters can be used in place of this, and a bright yellow warning label is also there to remind you under the battery cover. I hope this helps!