Ajax WaterStop Jeweller is a wireless, remotely controlled water shutoff valve that integrates with Ajax hubs (Hub 2, Hub Plus, Hub Hybrid and ReX). The kit combines a RuB brass ball valve (DN15 / DN20 / DN25) with an electric actuator and Ajax Jeweller radio electronics to allow automatic, scheduled or manual shut‑off via the Ajax app or the local push‑button.

• Remote open/close from mobile/PC app or local push‑button.
• Automatic shut‑off when triggered by Ajax LeaksProtect or third‑party leak detectors (automation scenarios).
• Fast shut‑off: actuator closes the valve in ~5–7 seconds, limiting released water during an event.
• High‑torque actuator (up to 8.5 N·m) for reliable operation even on partially seized valves.
• Included RuB (Bonomi) brass ball valve in DN15 / DN20 / DN25 options; BSP parallel female‑to‑female threads.
• Battery operation (4 × CR123A, up to ~3 years typical) with optional external 7.5–14 V⎓ supply (recommended 9–12 V⎓, 2 A).
• Tamper detection and anti‑sabotage options; multiple mounting positions and tool‑free actuator installation.

Use cases: residential and commercial leak prevention, integration into security/automation systems, timed shut‑offs for plumbing maintenance, and remote control for vacant properties.

Safety & compliance: Not for gas or aggressive fluids. Avoid freezing conditions (freezing may damage the valve). Follow local electrical and plumbing regulations and install in accordance with the official manual. For official certification markings (CE/UKCA) and full installation requirements, consult the product datasheet and user manual (CE/UKCA: INSUFFICIENT DATA in provided sources).

Note: See the official Ajax product page and manuals for full technical details, installation instructions and commissioning procedures.