The VI13800 is an essential tool for proving electrical circuits are dead before carrying out maintenance and installation work in accordance with safe isolation procedures. The VI13800 ensures safety through simplicity, with no ranges, switches or batteries, reducing the risk of an incorrect reading. VI13800 Voltage Indicator: Nominal Voltage Range: 50 - 600V AC / DC Nominal Voltage Threshold Indications: 50, 100, 200, 400 V DC/AC rms Nominal Voltage threshold tolerance: < 85% of marked threshold indication Polarity indication: from approx 12V DC/AC rms AC/DC voltage detection: automatic Range detection: automatic Response time: < 0.1s Frequency range: DC, 1 - 400 Hz Test current: < 3.5mA at 600V DC/AC rms Duty ratio: 30s ON (operated) / 240s OFF (recovery) Powered: From circuit under test VI13800 Environmental: Temperature & Humidity (operating & storage): -10C to 55C 85% R.H. IP Rating: IP54