Tempo - Tempo Valve & Wire Locator - W/Enhanced LCD Display

The Tempo 521A™ Wire and Valve Locator is a trusted diagnostic tool designed for the maintenance and troubleshooting of electrically controlled sprinkler irrigation systems. Engineered for professionals, this locator pinpoints underground wires, valve solenoids, wire breaks, and path depth with speed and precision. With over 25 years of field use, the 521A is the industry standard for contractors seeking efficient underground diagnostics.

Key Features:

• Locates wire paths, solenoid valves, breaks, and large insulation nicks
• Adjustable transmit power for enhanced signal clarity and range
• Hotspot signal makes solenoid valve detection quick and precise
• Audio and visual feedback through speaker, meter, and optional headset
• Long-nose receiver wand for efficient wire tracing
• Rugged headset blocks out ambient job site noise
• Includes full kit: transmitter, receiver, ground stake, headset, carry case

Construction & Durability:

• Durable housing built to withstand field conditions
• Slim-line carry case protects all components during transport
• Receiver and transmitter designed for easy handling and quick deployment

Performance & Functionality:

• Quickly traces buried wires and valves across long distances
• Pinpoints valve solenoids and breaks by identifying hot spot signal spikes
• Enables depth measurement using 45-degree cross-detection method
• Sensitivity controls allow accurate signal isolation and tracing
• Designed for sprinkler systems but useful for any buried wire locating

Ease of Installation & Use:

• Simple setup: connect red lead to target wire and black lead to ground stake
• Easy-to-read analog meter and audio tones guide wire tracing
• No special training needed; intuitive operation for professionals
• Can be used with included rugged headset for noisy environments

Technical Specifications:

• Transmitter Frequency: 1748 Hz
• Transmitter Power: Adjustable up to 750 Vpp, 285 Vrms
• Battery Life: Transmitter – 50 hours; Receiver – 100 hours (nominal)
• Battery Type: Eight D-cell and one 9V battery (not included)
• Case Dimensions: 33.5" L x 8.25" W x 3.75" H (851 mm x 210 mm x 95 mm)
• Weight: 12 lb complete (5.4 kg)
• Automatic Shutoff: Receiver – 90 minutes; Transmitter – bumper shutoff

Installation & Application:

• Ideal for locating underground sprinkler valves and buried control wires
• Recommended for irrigation contractors, maintenance crews, and grounds professionals
• Effective in residential, commercial, and municipal landscapes

Compatibility & Optional Accessories:

• Compatible with all standard 24V irrigation valve wiring
• Optional replacement headset (HS-1) and receiver (521A-R) available