Metravi 230 V Digital Time Interval Meter offers high efficiency in measuring various protective relays' operation time. 230 V Digital Time Interval Meter is also effective in measuring the opening and closing time of circuit-breakers with high resolution and accuracy. Digital Time Interval Meter has versatility in selecting different operating modes makes it extremely useful for field operation. This Time Interval Meter also has an integrated circuit construction, ensuring accuracy and reliability even at the smallest time interval measurement. The blinking of the display also provides an overflow indication. The instrument is portable and mains operated. The instrument is protected against overloads/short-circuits and provided with a reverse polarity indicator in the start/stop by negative step voltages. Product Specifications Brand: Metravi Country of Origin: India Display of Each Channel: 7 Segment LED Type, 4 Digits Model: NTT 4D Number of Channels: 1 Power Input: 230 V Single Phase AC 50 Hz