SKYSHALO 512Hz Sonde 8/5 in. and 1/4-20 in. Connectors Rigid Drain Locator for Locating and Detecting Small Sewer, Silver

512 Hz Frequency Sonde. The 512 Hz sonde locator transmits a 512 Hz signal that can be picked up with any compatible locator, allowing users to pinpoint the transmitter's position underground. The flashing LED indicates that sonde is transmitting. The maximum detection range of transmitter for underground pipe location is 25 ft. in the air and 15 ft. in cast iron (varies with ambient noise and interference).

• 512Hz signal detects small sewer pipe
• Waterproof material resist corrosion and oxidation
• Compatible with any compatible locator