Fisher Labs SR-81 Sonde at 81.92 kHz

FISHER LABS SR-81 sonde at 81.92 kHz - Best Price Guaranteed - Price Match- Free US Shipping- Manufacturer's Limited Warranty- Made in the USA 🇺🇸 Fisher Sonde Signal Transmitter SONDE-TW6 Fisher Sondes are small transmitters used to trace the path of non-metallic pipes and locate blockage in lines. Sondes are inserted into a pipe or duct by means of a push rod and located using a Fisher receiver. FEATURES Rugged Design Long Battery Life Outstanding Distance & Depth SPECIFICATIONS Operating Frequency 81.92 kHz Weight 6.4 oz Length 5 1/2” Height 6” Battery Life 70 hrs Depth 20’ Operating Temperature -20 to +60 C End Cap Thread 3/8”-16 x 3/4”