chinapst builds Tuya-based security hardware as a factory-direct smart door sensor manufacturer and smart WiFi door sensor manufacturer, and the anchor model PST-WD002 shows what that means in practice: 2.4GHz WiFi pairing, open/close status pushed to the Tuya Smart app, Alexa and Google Assistant voice checks, and a branding ladder that starts at a 100-piece laser-logo run. Use the modules below as the checklist you run before you place a purchase order with any door sensor factory.

View the PST-WD002 Door Sensor Request a Custom Solution

Tuya Smart WiFi Magnetic Door Sensor – Remote Monitoring & Home Security

Range breadth One Tuya software stack across door/window contacts, ceiling PIR, 360° motion PIR, 2-in-1 PIR with light detection and a solar waterproof PIR alarm.

OEM entry below full private label Branding moves in tiers — laser logo first, then app PID, then box and manual printing — so a pilot order does not need a private-label budget.

Anchor model PST-WD002, a Tuya WiFi magnetic door sensor for indoor doors and windows, app controlled and voice controlled, wall-mounted with supplied tape.

Why Buyers Source Door Sensors From a Specialized Factory

Each objection below is the one buyers actually raise in a first sourcing call — followed by what the site evidence says, and what that means for your program.

"A general factory can quote lower per unit."

One Tuya family, one purchase order

Door and window contacts, ceiling PIR and 360° motion PIR, a 2-in-1 PIR with light detection, and a solar waterproof PIR alarm all sit on the same Tuya software stack. A distributor assembling a starter security bundle can cover entry, motion and outdoor zones without splitting the order across three suppliers and three app ecosystems.

What this means for your program: you can launch a coherent, app-linkable kit in one shipment instead of three partial ones that never quite match.

"Will the alerts behave the way my app users expect?"

Alert behaviour is a specification, not a feature bullet

PST-WD002 pushes open/close status straight to the phone, supports low-battery detection, and exposes Tuya Smart linkage control so a contact can trigger other devices on the same account. Sensitivity is adjustable inside the app, which matters because a cabinet door and a front door need different trigger thresholds.

What this means for your program: decide the alert rule before you brief the factory — on this product the app settings, not the hardware, define the customer experience.

"Who answers the second-week questions?"

Documented answers instead of guesses

The product page states the battery type, the expected battery life under a stated daily trigger count, the operating temperature and humidity range, and an honest boundary: the sensor is not waterproof and is not intended for outdoor use. Installation, box size, carton quantity and unit weight are published as well.

What this means for your program: you can write your own marketplace listing and support FAQ in an afternoon, and you already know where the product stops.

"I need my own brand, not a generic box."

Branding is tiered, so you can start small

Laser logo runs begin at a low piece count, app PID customization sits at the mid tier, and box-and-manual printing at the upper tier. Each tier changes what ships inside the carton — the sensor hardware stays the same.

What this means for your program: pilot with a logo run, prove sell-through, then commit to a full private label once the channel data exists.

"How do I cost landed freight before I commit?"

Physical facts that decide your shipping math

The unit is compact and light, packed in a small retail box, with a fixed quantity per carton, and the ABS housing wall-mounts with the double-sided tape included in the package — no screws, no drilling, no extra hardware line on your BOM.

What this means for your program: you can calculate landed cost per unit and plan renter-friendly installations before you ever open a negotiation.

PST-WD002 Technical & Ecosystem Dossier

This is the reference set for the anchor SKU. Keep it open when you compare competing quotes — a row that cannot be matched should be a question, not a discount.

Front view of the PST-WD002 door sensor showing the white ABS body and the separate magnet contact piece — PST-WD002 sensor body and magnet contact piece — the two halves that report open and closed states.

Field	Specification
Product name	Tuya Smart WiFi Door Sensor
Model	PST-WD002
App	Tuya Smart or Smart Life
Color / material	White, ABS
Battery	2 × AAA 1.5V (LR03 ultra alkaline)
Battery life	About 6 months at roughly 10 triggers per day; depends on usage frequency and sensitivity settings
WiFi standard	IEEE 802.11 b/g/n, 2.4GHz
Voice control	Amazon Alexa, Google Assistant
Open/close status	Pushes open/close status of the door or window
Low-battery detection	Supported
Tuya linkage control	Supported
Operating temperature	−10°C to +50°C
Humidity	5%–95% non-condensing
Installation	Wall-mounted
Box dimensions	8.5 × 5.5 × 2.5 cm
Unit weight	50 g
Carton	200 PCS / CTN
Water resistance	Not waterproof — indoor use only

Package list WiFi door sensor ×1 · AAA 1.5V battery ×2 · double-sided tape ×1 · user manual ×1. The device can also be shared to other family accounts inside the Tuya Smart app, so every member receives the same notification.

Scenario-to-Specification: Matching WD002 to the Job

Deployment scenario on the left, the buying decision it forces on the right.

PST-WD002 magnetic contact positioned on an indoor door frame for open and close status reporting — Indoor door frame installation — the contact reports state changes, not video, so placement discipline matters.

Scenario 01

Monitored entry or apartment door

Decision: one PST-WD002 per opening, paired to the 2.4GHz network and shared across household accounts so every member gets the push.

Why: remote monitoring and open/close status are the core function here, and voice assistants let users ask for the state hands-free rather than opening the app.

Scenario 02

Rental units where drilling is not allowed

Decision: wall-mount the 50g unit with the supplied double-sided tape, keeping the sensor and magnet aligned within the gap range the contact can read.

Why: no screws and no frame damage means the device can be removed cleanly at move-out, which is exactly what property managers and renters ask for.

Scenario 03

In-home automation trigger

Decision: link the contact to lights or climate devices through Tuya Smart linkage control instead of adding a separate gateway to the BOM.

Why: the linkage runs inside the same account, so the trigger logic is configured in the app and does not require extra hardware in the carton.

Where WD002 stops. The sensor is not waterproof, so outdoor gates, garden doors and exposed entryways need a different product from the same family — for example the solar waterproof PIR alarm. Sizing the indoor/outdoor split correctly before quoting is the fastest way to avoid a returns problem after launch.

OEM / ODM Customization Ladder

Three entry points, each changing what a customer sees when the box is opened. Confirm the packaging and printing lead time for your chosen tier when you request the quote.

PST-WD002 door sensor pair laid out for branding and packaging review before an OEM run — Sensor pair prepared for a branding and packaging review ahead of an OEM run.

100 PCS Laser logo

Lowest entry point: your mark is lasered onto the product itself. The retail box stays standard, which makes this the natural pilot-order tier.

500 PCS App PID OEM

Your own product identifier inside the app ecosystem, so the pairing flow and product listing carry your brand rather than a generic entry.

1,000 PCS Box & manual OEM

Full private label: custom box printing and a branded user manual. Available from 500 PCS with a 0.15 USD per-piece surcharge if you need to launch earlier.

How to sequence the tiers Start with the logo run to validate channel demand, move to an app PID once your own listing exists, then commit to box and manual printing when the reorder volume is predictable. Each step adds production steps, so build the schedule backwards from your launch date.

Pre-Order Verification Checklist

Run these six checks against any door sensor supplier before you convert a sample into a production order.

Close-up of the PST-WD002 sensor housing showing the alignment marker between the sensor body and the magnet piece — Alignment between the two contact halves is the detail most often missed during sampling.

Request the price list first. Pricing on the product page is gated behind an account login, so plan the login or an email request into your evaluation timeline.
Pair the sample to your own account. Test against your Tuya Smart or Smart Life account rather than the factory's, so app behaviour matches what your customers will see.
Test low-battery detection and sensitivity. Trigger the settings both ways — a threshold that suits a front door can be wrong for a light cabinet door.
Confirm which OEM tier your artwork fits. Logo, app PID and box printing sit at different volumes, and artwork needs to be final before printing starts.
Verify the freight math. Check the published unit weight, box dimensions and carton quantity against your own forwarder's rate sheet before you fix a landed price.
Confirm the environment. Indoor, non-condensing installation only — if a channel expects outdoor or wet-area use, plan a different model in the quote.

Request a Quote in Four Lines

Send these four items and you will get a comparable answer instead of a generic brochure. Wholesale, bulk and private-label inquiries follow the same path.

Target quantity and whether it sits above or below the 500-piece app PID tier
Branding level — laser logo, app PID, or full box and manual private label
Market and channel — the country, the sales channel, and the indoor/outdoor mix you are planning
Sample and delivery date — when you need the sample in hand and when the container has to ship

Review the PST-WD002 Product Page

Frequently Asked Questions

what are the minimum order quantities for oem?

laser logo starts at 100 pcs, app pid oem at 500 pcs, and box-and-manual oem at 1,000 pcs. if you only need 500 pcs with box and manual branding, the page states an extra charge of 0.15 usd per piece.

can the sensor carry my own brand in the app?

yes — app pid customization is available from 500 pcs, which places your own product identifier inside the app ecosystem alongside physical branding options such as a laser logo.

why is pricing hidden on the product page?

the product page shows a login-gated price and a "get pricing & catalog download" action. create an account or send an inquiry through the contact page to receive current pricing and the catalog.

can pst-wd002 be used outdoors?

no. the product page states clearly that the sensor is not waterproof, so it is intended for indoor doors and windows. outdoor or exposed locations should use a waterproof model such as the solar waterproof pir alarm.

what batteries does it take, and how long do they last?

it uses 2 × aaa 1.5v lr03 ultra alkaline batteries. under normal usage and default settings, the page estimates about 6 months at roughly 10 triggers per day; actual life depends on usage frequency and sensitivity settings.

which app and voice assistants are supported?

the sensor pairs over a 2.4ghz ieee 802.11 b/g/n network and works with the tuya smart or smart life app, with voice control through amazon alexa and google assistant.

PST: About Us; Contact Us; Certificates; Our Team; Certificates; Blog; FAQs

All Collections: WiFi Tuya Smart System; Zigbee Tuya Smart System; Wholesale EU Smart Touch Switches; Smart WiFi Socket Dual USB

Contact Us: 204, Block D, Building 1, AI Digital Valley, Taoyuan Community, Dalang Street, Longhua District, Shenzhen, China; sales@chinapst.com; +86 13632945862

Newsletter

Follow Us

smart door sensor manufacturer | smart WiFi door sensor manufacturer

Door Sensor Factory: OEM Sourcing & Evaluation

Why Buyers Source Door Sensors From a Specialized Factory

One Tuya family, one purchase order

Alert behaviour is a specification, not a feature bullet

Documented answers instead of guesses

Branding is tiered, so you can start small

Physical facts that decide your shipping math

PST-WD002 Technical & Ecosystem Dossier

Scenario-to-Specification: Matching WD002 to the Job

Monitored entry or apartment door

Rental units where drilling is not allowed

In-home automation trigger

OEM / ODM Customization Ladder

Pre-Order Verification Checklist

Request a Quote in Four Lines

Related Products

Tuya Smart 2 - in - 1 WiFi Ceiling PIR Sensor: PIR + light detection in one device

Tuya Smart WiFi Ceiling Motion PIR Sensor – 360° Detection & App Alerts

Tuya Smart WiFi Solar Waterproof WiFi PIR Alarm with 433Mhz, solar - powered for outdoor security

Related Reading

Magnetic Door Contact Sensor Structure and Open-Close Alarm States

WiFi Door Sensors for Rental Apartments Without Drilling

Using a WiFi Door Sensor on Cabinets, Drawers, and File Cabinets

Frequently Asked Questions