【ZX-P31B】
Wifi PIR Sensor

Once human motion is detected, ZX‑P31B activates loud 85‑decibel siren plus flashing LED warning light to deter intruders. Meanwhile, instant alarm notifications are sent to bound Tuya App remotely. Users can get security alerts anytime no matter where they are. Four‑level adjustable volume covers mute to high‑volume modes for different scenarios. It delivers both on‑site deterrence and off‑site reminder, greatly improving indoor safety for houses, stores and offices.

This WiFi PIR alarm hub can work with maximum 30 matched wireless security accessories, such as door‑window contacts and SOS buttons. Users can build a customized complete local alarm system without complicated wiring. All paired devices can be managed centrally in Tuya App. Expand the monitoring range according to room quantity and actual protection demands. Perfect for home, retail shop and small‑office layered security deployment.

Equipped with internal backup lithium battery, ZX‑P31B keeps working when USB main power is cut off, defending against power‑cut sabotage by intruders. It adopts USB‑C power supply for daily power input. Low‑voltage reminder function reminds users to maintain battery health. No worry about security failure caused by unexpected power outage. It provides continuous monitoring for unattended shops, warehouses and vacant households for stable round‑the‑clock safety monitoring.

Multiple colored LED lights display different working states including pairing, WiFi configuration, arm‑disarm mode and alarm trigger. Users can quickly read device status at a glance without checking App frequently. Physical buttons on the body realize volume adjustment, mode switch and network reset. Tuya WiFi quick pairing simplifies configuration procedures. Even non‑professional users can finish setup fast, friendly for household and small‑business end‑users.

Designed for indoor deployment, this PIR alarm fits houses, supermarkets, restaurants, milk‑tea shops and offices. Reliable infrared motion sensing detects unauthorized human movement effectively. Compact desktop‑mount structure allows flexible placement on table, counter or wall. Stable WiFi connection ensures timely alarm message delivery. Whether for family anti‑theft or commercial premise security monitoring, it delivers practical and cost‑effective intrusion‑alert protection.