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RIDGID Utility Line Signal Transmitter: 1 kHz/33 kHz/8 kHz (MPN 21898) - Underground Utility Transmitters
RIDGIDUnderground Utility Transmitters

RIDGID Utility Line Signal Transmitter: 1 kHz/33 kHz/8 kHz (MPN 21898)

The RIDGID Utility Line Signal Transmitter (MPN 21898) is an underground utility transmitter with an operating frequency of 1 kHz. This unit is not rated for CAT safety. It is designed for locating and tracing…

SKU 3G-OTH-170514

Brand
RIDGID
Item
Utility Line Signal Transmitter: 1 kHz/33 kHz/8 kHz
Category
Underground Utility Transmitters
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RIDGID
Manufacturer Part Number
21898
CAT Safety Rating
Not Rated
Operating Frequency
1 kHz

Technical Documents

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RIDGID Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RIDGID Utility Line Signal Transmitter (MPN 21898) is an underground utility transmitter with an operating frequency of 1 kHz. This unit is not rated for CAT safety. It is designed for locating and tracing underground utilities.

Frequently Asked Questions

What is the RIDGID Utility Line Signal Transmitter used for?

The RIDGID Utility Line Signal Transmitter (MPN 21898) is used for locating and tracing underground utilities such as pipes and cables. It operates at 1 kHz to apply a signal that can be detected by a compatible receiver, helping field crews identify buried lines before excavation.

What are the specifications of the RIDGID 21898 transmitter?

The RIDGID 21898 transmitter has an operating frequency of 1 kHz and is not rated for CAT safety. It is designed for underground utility locating. 3G Electric supplies this unit and can provide technical support for integration with compatible receivers and accessories.

Where to buy the RIDGID 21898 utility transmitter worldwide?

3G Electric supplies the RIDGID 21898 utility transmitter to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this unit.

How to select the right frequency for underground utility locating?

Selecting the right frequency depends on the target utility and soil conditions. The RIDGID 21898 operates at 1 kHz, which is suitable for tracing metallic pipes and cables over moderate distances. For deeper or longer runs, higher frequencies like 33 kHz or 8 kHz may be preferred. Consult your receiver manual for compatibility.

Used in

Common applications for RIDGID
Pipe fabrication shops — RIDGID 1224 Series threading machine with die head 26152 for NPT threading on 2-1/2 in to 4 in pipe.
Drain maintenance services — RIDGID SeeSnake CS65XR inspection camera for 100 ft drain line visual inspection.
Plumbing repair — RIDGID K9-12 cordless drain cleaner for clearing blockages in 1-1/4 in to 2 in pipes.
Industrial piping support — RIDGID V-Head pipe stand 22168 for holding pipe during threading or cutting operations.
Tube bending for HVAC — RIDGID 38048 lever bender for 1/2 in stainless steel tubing in gas or water lines.
Threading die replacement — RIDGID 38105 dies for rethreading pipe nipples on-site using RIDGID threading equipment.

RIDGID 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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Pipe locator with 35 kHz power frequency and 2 3/10 in display. Supports 16 Hz, 33 Hz, and 512 Hz sonde frequencies. Used for detecting and tracing underground pipes, cables, and utilities in construction, utility maintenance, and excavation projects
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Pipe locator with 35 kHz power frequency and 2 3/10 in display. Supports 16 Hz, 33 Hz, and 512 Hz sonde frequencies. Used for detecting and tracing underground pipes, cables, and utilities in construction, utility maintenance, and excavation projects
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Pipe locator with a 2 1/2 in display. Supports sonde frequencies of 16 Hz, 33 kHz, 512 Hz, 640 Hz, and 874 kHz. Used for locating underground pipes, cables, and sondes in construction, utility, and plumbing applications
This inductive signal clamp is designed for use with an underground cable and utility line locator transmitter. It clamps around a conductor to induce a trace signal, enabling detection of buried pipes and cables without direct connection. The gray clamp operates at 8 to 262 kHz and is compatible with the SR-24 model
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This inductive signal clamp is designed for use with an underground cable and utility line locator transmitter. It clamps around a conductor to induce a trace signal, enabling detection of buried pipes and cables without direct connection. The gray clamp operates at 8 to 262 kHz and is compatible with the SR-24 model
RIDGID Remote Transmitter: Use with 4GB18 Pipe/Cable/Sonde Locator (MPN 16728)
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The LEICA DD DD300 is an underground utility locator with a maximum locating depth of 32.8 ft. It operates in Passive Radio (RF) mode at 33 kHz, suitable for detecting buried conductors such as gas, water, and telecom cables. The unit features an IP65 rating, digital display, and digital technology
LEICA DD
The LEICA DD DD300 is an underground utility locator with a maximum locating depth of 32.8 ft. It operates in Passive Radio (RF) mode at 33 kHz, suitable for detecting buried conductors such as gas, water, and telecom cables. The unit features an IP65 rating, digital display, and digital technology
The LEICA DD Utility Line Signal Transmitter (DA175) applies a 640 Hz signal to buried pipes or cables for tracing with a compatible receiver. It offers a maximum locating depth of 10 ft, IP67 dust and water ingress protection, and supports both direct connection and induction coupling. This transmitter is used in construction and excavation to locate underground utilities
LEICA DD
The LEICA DD Utility Line Signal Transmitter (DA175) applies a 640 Hz signal to buried pipes or cables for tracing with a compatible receiver. It offers a maximum locating depth of 10 ft, IP67 dust and water ingress protection, and supports both direct connection and induction coupling. This transmitter is used in construction and excavation to locate underground utilities

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