Plumbers, maintenance pros, and serious DIYers - this water leakage detector is like having superhero hearing for finding hidden leaks! The zinc alloy construction gives it this solid, professional feel that can definitely handle job site use without falling apart. Weighing about 1182g (41.7 ounces), it's substantial but not too heavy to carry around, and the compact 5.3x8.6x2.3cm size makes it easy to handle in tight spaces. The double-sided induction head is seriously clever - it enhances sensing sensitivity and lets you distinguish different sound qualities on each side, which helps you pinpoint exactly where that leak is coming from. There's a REC 3.5 jack for expanding functionality too - you can connect it to spectrum displays, recorders, transmitters, or wireless equipment, or even insert a dual channel for direct recording. It runs on a 9V hydrogen battery (model 6F22) with 800mAh capacity that comes installed, and the volume knob lets you adjust the sound to exactly where you need it for clear detection. This thing is versatile enough for detecting leaks in fire fighting pipes, household plumbing, heating systems, floor heating, water pipes, and even finding abnormal noises in vehicles. The metal shell isn't just for looks - it provides serious durability that stands up to professional use day after day. Whether you're dealing with mysterious water bills, trying to find a leak before it causes major damage, or working on vehicle diagnostics, this detector gives you that precision tool advantage that makes the difference between guessing and knowing exactly where the problem is.