The Pointer Plus SP4 is similar to the Pointer Plus. The difference is that the Pointer Plus SP4 has an output frequency of 4 Hz.
It has a modern spring-type probe tip, interchangeable probes, sensitivity and intensity adjustment, hand grounding pole accessory, and immediate point location and treatment.
Specifications:
- Output intensity: 0-22 mA
- Frequency of output: 4 Hz
- Pulse width: 240 usec
- Wave form: continuous
- Wave shape: biphasic square pulse with negative spike
- Size: 17 x 3.3 x 2.3cm
- Weight: 60 grams
- Power supply: 9 volt battery