Tempo 551 Advanced Underground Locator

Discover the Tempo 551™ Advanced Underground Locator, a professional-grade, all-in-one solution for accurate utility locating. Engineered for performance and loaded with advanced features, the 551 provides everything necessary in a modern locator, including dual simultaneous frequencies, Peak & Null detection modes, and Tempo’s exclusive IntelliTrack™ digital noise rejection for exceptional signal clarity.

IntelliTrack technology improves accuracy by filtering out environmental noise, enabling confident locating even near active power lines or in high-interference areas. Whether connecting directly to a wire, using an inductive clamp, or relying on the transmitter antenna, the 551 adjusts to your jobsite effortlessly. Users can easily switch between Peak and Null modes or compare two active frequencies in real time, optimizing signal strength and aiding in the identification and understanding of anomalies without needing to return to the transmitter.

Designed for practical use, the 551 is perfect for tracing electrical lines, irrigation wires, telecom cables, and metallic pipes. It can locate utilities at depths exceeding 20 feet (6 meters) and trace paths over 1 mile (1.6 kilometers). The lightweight, ergonomic receiver, along with a durable, IP54-rated enclosure, ensures dependable performance and user comfort in any condition.

Elevate your underground utility locating with the Tempo 551; intelligent, dependable, and designed for the most challenging tasks.

Assembled in the USA

Dual Simultaneous Frequencies:
By default, the 551™ Transmitter sends out two frequencies simultaneously ensuring optimal signal performance and enabling side-by-side comparison to better detect and characterize anomalies - all while in the field.

IntelliTrack™ Noise Rejection:
With IntelliTrack, we added digital noise rejection in our Receiver so that you can clearly track cables carrying a signal, despite electrical interference.

Inductive Clamp:
With the IC-5 clamp, this locator can apply a signal without needing to disconnect or de-energize the line.

Transmitter Induction:
Place the 551 Transmitter in Inductive Mode a few feet over a line and emit a long-range, low-bleed signal.

Passive:
Detect and trace power lines carrying live AC-current without using the Transmitter.

Peak/Null:
Now you don’t have to choose, you have both in the same locator. Track the line with Peak and pinpoint with Null in any frequency.

IP54:
Protected with IP54-rated resistance to water and debris means the 551 can withstand conditions on any job site.

Bright LCD:
1,000-nit LCD display makes the screens easy to read in any lighting conditions.

• Max Depth: 20+ ft (6+ m)
• Max Distance: Over 1 mile (1.6 km)
• Transmitter Typical Battery Life in Dual Frequency Mode: 40 hrs
• Transmitter Typical Battery Life in Single Frequency Mode: 50 hrs