fdgdfgdfgdfgdfg ore from Indian Navy&rsquos Weapon Equipment Depot, Vizag for supply of 3003 numbers of Expandable Bathy Thermograph Probe (XBT Probe). XBT probe is used by Indian Navy to measure sea temperature up to 500 meters depth when it descends through water. Execution of another order for XBT probe worth Rs 1.73 Crore from Weapon Equipment Depot, Mumbai is in progress by Keltron&rsquos Security & Surveillance Unit at Karakulam.