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SireMaster Products
Original
(Out of production)

Professional
(Out of production)

ToughBull Basic

ToughBull Elite
Safe and Effective Stimulus Yes Yes Yes Yes
Battery Operation, 100 to 150 Bulls on a full charge Yes Yes Yes Yes
Compatable with industry standard probes Yes Yes Yes Yes
Battery Level Indicator No Yes Yes Yes
Battery Chargin and Charge Complete Indicators No Yes Yes Yes
Auto-Shutdown No Yes Yes Yes
AC Power Operation No Limited Yes Yes
Rugged Waterproof Case No No Yes Yes
Universal Input Voltage; 50/60Hz, 100-230VAC No No Yes Yes
Advanced Battery Charger No No Yes Yes
Advanced Output Protection No No Yes Yes
High Resolution LCD Display protected by Corning Gorilla No No No Yes
Output Enable Button No No No Yes
3 Selectable stimulus levels No Yes No Yes