All 3 Probes work with any Tone &
come with a speaker, battery saver,
reccessed on/off push button, blended
carbon round & duckbill plastic tips.
PEI 200EP also comes with metal tip.
PEI 200EP & PEI 200FP have reccessed
tabs for lineman's test set connection.
Adjustable sensitivity volume control
LED for visual signal strength indication
PEI 200XP filter Probe has a normal
or filter switch to block out "Power line
hum" Microprocesor controlled circutry
ON /OFF button & 5 Minute Auto
Shut Off.