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  • WaterCop Leak Stop+ — Single Point Leak Detection & Automatic Shut-Off Specifications

    September 08, 2026 2 min read

    Specification sheet for the WaterCop Leak Stop+ single-point leak detection and automatic shut-off system.

    Full text manual (for reference)

    Specification sheet for the WaterCop® Leak Stop+ single-point leak detection and automatic shut-off system — designed to help stop extensive water damage from plumbing leaks.

    Overview

    Leak Stop+ detects plumbing leaks at a single location, sounds an audible alarm, and automatically shuts off the water supply. An RJ45 jack allows integration with SmartConnect for mobile alerts to a smartphone or tablet, and with home security or automation systems for notifications when the shut-off has activated. Leak Stop+ is ideal for water heaters, recirculation pumps, and softeners, which become particularly vulnerable to leaks as they age.

    Features

    • Brass ball valve with electric actuator and two attached moisture sensors
    • Constantly monitors the selected area for accumulating moisture
    • Audible alarm sounds when a leak is detected
    • Shut-off valve remains closed until manually reset
    • Valve can be controlled independently of water leaks via open/close soft-touch buttons on the actuator
    • RJ45 jack for integration with SmartConnect or security/home automation systems
    • Signal output to third-party devices to notify of shut-off

    Note: Leak Stop+ does not operate with other WaterCop® wireless sensors.

    Installation

    Designed for plumbing supply line installation, upstream of the appliance or area you wish to monitor — most commonly a water heater. Place the two sensor probes in the area where water would first accumulate if a leak occurs.

    Specifications

    Spec Detail
    Max Working Pressure 125 PSIG
    Ambient Temperature 35° to 105°F
    Voltage (Leak Stop) 12 VDC, 1 phase (includes 115V wall transformer and 20' cord)
    Valve NSF/ANSI 372* approved, lead-free, full port brass
    Installation Building/plumbing codes in some areas may require a licensed plumber

    * Lead Free NSF/ANSI 372 refers to the wetted surface of pipe, fitting, and fixtures in potable water systems with a weighted average lead content ≤ 0.25%. Source: California Health & Safety Code (116875); Vermont Act 193.

    Ordering Information

    Size (FNPT) Leak Stop+ Part No.
    ½" WCLSLFB ½
    ¾" WCLSLFB ¾
    1" WCLSLFB 1
    1 ¼" WCLSLFB 1 ¼

    All sizes are lead-free NSF/ANSI 372. Made in the USA.

    Manufacturer

    WaterCop®
    watercop.com · 800-545-3636