TESTO 745 non-contact voltage tester features LED flashlight, two sensitivity levels, low pass filter,visual and audible indication and differentiates live from neutral in AC outlets. Measurement category: CAT IV 600 V, CAT III 1,000 V Dimensions H 155 x W 25 x D 23 mm IP Rating IP67 Power Supply 1 x AAA Battery (Supplied) Type Voltage Detector Voltage 12 to 1000 V AC Weight 63 g Filter for high-frequency interference signals Adjustable sensitivity Visual and acoustic signal Waterproof and dustproof according to IP 67 Measuring point illumination Technical data Voltage testing:12 to 1,000 V AC Measuring point illumination :√ Measurement category ：CAT IV 600 V CAT III 1,000 V Protection class： IP 67 Operating temperature： -10 to +50 °C Storage temperature： -15 to +60 °C Dimensions： 155 x 25 x 23 mm (L x W x H) Weight： 63 g Authorizations： CSA, CE Standards： EN 61326-1, EN 61010-1