RIDGID Utility Line Signal Transmitter: 0.128 kHz/1 kHz/33 kHz/8 kHz (MPN 21903)
The RIDGID Utility Line Signal Transmitter (MPN 21903) is an underground utility transmitter designed for locating buried lines. It operates at a frequency of 0.128 kHz and carries a CAT Safety Rating of Not Rated.
SKU 3G-OTH-170513
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Product Description
The RIDGID Utility Line Signal Transmitter (MPN 21903) is an underground utility transmitter designed for locating buried lines. It operates at a frequency of 0.128 kHz and carries a CAT Safety Rating of Not Rated.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the RIDGID Utility Line Signal Transmitter used for?
The RIDGID Utility Line Signal Transmitter (MPN 21903) is used to locate buried utility lines by applying a 0.128 kHz signal. It helps plant engineers and maintenance teams identify underground pipes and cables before excavation, reducing the risk of damage during construction or repair work.
What are the specifications of the RIDGID 21903 transmitter?
The RIDGID Utility Line Signal Transmitter (MPN 21903) operates at a frequency of 0.128 kHz. It has a CAT Safety Rating of Not Rated. This unit is designed for underground utility locating and is supplied by 3G Electric as part of their industrial equipment sourcing across multiple departments.
Where to buy the RIDGID 21903 utility transmitter worldwide?
3G Electric supplies the RIDGID Utility Line Signal Transmitter (MPN 21903) to customers worldwide. As a global industrial solutions provider, 3G Electric handles full logistics, customs clearance, and delivery for international orders, ensuring the transmitter reaches your facility reliably.
How to select the right frequency for a RIDGID utility transmitter?
Selecting the correct frequency, such as the 0.128 kHz on the RIDGID 21903, depends on soil conditions and line depth. Lower frequencies like 0.128 kHz travel farther and are ideal for long-distance tracing of buried metallic pipes. Consult the transmitter manual or 3G Electric for application guidance.
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Common applications for RIDGIDRIDGID Products
3G Electric supplies RIDGID underground utility transmitters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.








