1. Synthesized or Crystal Type 2. Loud Buzzer, Strong Vibrator 3. Blue Back-light, Large Display 4. 6 Keys Operation, User Friendly Interface 5. Selective PC or Hand Programmable 6. IP53 Approval for Water-resistance and Dust-tight 7. Quick charging 8. Charger with relay output is optional 9. Support Languages: English, Spanish, Portuguese, Russian, German, and French
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