Metcal Conical (STTC) Narrow Long Reach (∅ x L) 0.25mm x 13.2mm 500 Series STTC 590 vendor_METCAL Technical specifications Voltage range Up DRA35892 Technical specifications Voltage range Up to 400 V Phase display 120 400 V AC Frequency range 2 400 Hz Operating timer Continuous Environmental specifications Operating temperature 0 °C to 40 °C Operating altitude Up to 2000m Humidity (without condensation) 15% to 80% Dust water resistance IP 40 Safety specifications Electrical safety EN 61010 Anti magnetic precision tweezers with soft ESD ergonomic foam grips (resistivity 10E8) for enhanced operator comfort The temperature series is designated by the first digit following the dash in the part number Metcal recommends the 700 series for the majority of applications