The TEMPO COMMUNICATIONS 551 Advanced Underground Locator is designed for accuracy, efficiency, and reliability in underground utility tracing. Packed with advanced features, this locator ensures seamless operation even in challenging environments. The 551 features IntelliTrack digital noise rejection, dual simultaneous frequencies, and peak/null receiver modes.
Dual Simultaneous Frequencies
IntelliTrack Noise Rejection
IP54-rated for water and debris resistance
Product Highlights
The 551 Advanced Underground Locator delivers reliability, efficiency, and ease of use at an affordable price.
Product Information
Standard Information
Brand: TEMPO COMMUNICATIONS
Manufacturer Part Number: 551
Country of Origin: USA
Technical Specifications
Operating Temperature
14 °F to 131 °F (-10 °C to 55 °C)
Weight With Batteries
11.5 lbs
Weight Without Batteries
9.6 lbs
Length
28 in. (711mm)
Width
12.6 in. (321mm)
Height
4.1 in. (104mm)
Transmitter Weight without batteries
2.6 lbs
Transmitter Weight with batteries
4.3 lbs
Transmitter Ingress Protection Rating
IP54
Transmitter Battery Type
6x D cell (Alkaline Recommended)
Transmitter Dual Frequency Mode
40 hrs typical
Transmitter Single Frequency Mode
50 hrs typical
Transmitter Auto Shutoff
3 hrs
Transmitter Direct Connect
1.75 kHz + 33 kHz Simultaneous
Transmitter Inductive Coupler
33 kHz
Transmitter Inductive Antenna
133 kHz
Transmitter Direct Connect MAX OUTPUT POWER
3.7W rms (1.8 rms for EU model)
Transmitter Induction Mode MAX OUTPUT POWER
<1W
Receiver Weight without batteries
1.0 lbs
Receiver Weight with batteries
1.2 lbs
Receiver Ingress Protection Rating
IP54
Receiver Headset sound pressure level
96±3 dBA SPL max (When used with Tempo HS-1)
Receiver Battery Type
4x AA cell
Receiver Typical Battery Life
35 hrs
Receiver Auto Shutoff
1.5 hrs
Receiver Passive Mode
50/60 Hz
Receiver Active
1.75 kHz, 33 kHz, 133 kHz
Tool Type
Locator Tool
For Use With/Related Products
General Purpose
Locator Type
Utility Line Locator Kit (Transmitter & Receiver)
For Circuit Type
Energized
Circuit Connection Type
Direct; Induction
Max. Locating Depth
20 ft
Operating Frequency
1.75 kHz; 133 kHz; 33 kHz; 50/60 Hz
For Locating
Communications Cables; Electrical Cables; Fish Tape; Irrigation Control Cables; Metallic Pipes; Sondes (33 kHz); Tracer Wires