The AWQ-105 is a mid-tier unit which improves on features from earlier versions. It has five channels including a channel exclusively for the pen probe. The pen probe measures electrical resistance on the skin and search for acupuncture points. Once located the probe can stimulate the point immediately with the push of a button. Standard features include maximum output intensity of 45mA, frequency selection between 1-500Hz and 3 pre-set wave forms (Constant, modulation and burst). Features specific to the AWQ-105 include adjustable pulse width and frequency in two separate groups. Channel 1 & 2 are controlled by the knobs on the left and Chanel 3 & 4 by the ones on the right. Allowing you to stimulate both high and low frequencies simultaneously. LCD display makes for reliable and precise readouts, and a musical alert for the timer replaces the traditional buzzer. The unit is powered by batteries. Output strength can be further adjusted using the High / Low switch to moved between lighter stimulation for acupuncture needles and stronger for TENS stimulation. Youll like this unit if you are looking for a little more than just a basic unit, and wanted to add some variety to your treatments. For a look at the manual and a full list of specifications please contact our friendly staff. Channels 5 (including probe) Intensity 0-45 mA (milliamp) Frequency 1500 Hz Waves (3) Constant, Modulation, Burst Attachment Point detector and Stimulator (fixed frequency 10Hz, up to 80mA) Timer Yes Suitable for use with: Pin Lead Wire STLE0013 (with extensions STLE0009, STLE0010, STLE0014, STAC0028) Specifications Name AWQ-105 - Acupuncture Stimulator/Locator