factory-direct digital load cell, built to the application-specific capacity and accuracy your project requires.
The WST1201 is a digital load cell. All figures on this page come from the factory parameter sheet — what you read here is what ships.
Contact our engineers for the complete datasheet and design-in support.
WST1201 Smart shelves Intelligent storage use digital single point load cell, Compared to analog sensors, this series of digital sensors primarily integrates a digital transmitter, allowing the load cells to directly output standard RS485 or RS232 digital signals. Each sensor boasts high precision and high resolution, requires no additional calibration, and can be directly used with downstream equipment.
Since eccentric load compensation is pre-installed at the factory (compliant with OIML R60 standard), installation is quick; a single sensor is sufficient to build a complete scale.
This series of sensors can be used not only in conventional price-computing scales, counting scales, weighing scales, retail scales, and platform scales, but is also widely used in various smart IoT products, such as smart shelves, vending machines, and RVM (Recycling Management System) automatic recycling equipment.
FEATURES
Aluminum alloy,surface anodized and anticorrosion;
Built-in digital module, digital signal output, RS485 or RS232;
Max platform size: 250×350mm;
Factory calibration, no calibration required.
Modify the acceleration of gravity and can be used in other places without calibration;
To change division value, after that, the corresponding weight can be output, no need for field calibration.
The sensor has only one zero-setting command and a weight read command are immediately accessed.
Mainly used in smart shelves, smart gravity cabinets, garbage recycling and others.
SPECIFICATION
WIRING
Complete technical parameters, as delivered from the factory.
| WST1201 Technical Specifications | |||
|---|---|---|---|
| Rated Load | 3,6,10,20,30,40,50(kg) | Division Value | ≤5kg,0.1g, 6～50kg,1g |
| Rated Output | RS485 or RS232 | Material | Aluminium alloy |
| Ingress Protection | IP65 | Weight data output rate | Rs485:3ms |
| 6～50kg,1g | RS232:20ms | Detectability* | Default 1 |
| Operating Temp. Range | RS485:-20～+70℃ | Comprehensive Error | 0.005%F.S |
| Temp. Effect on Output | 0.002%F.S/℃ | Excitation,Recommende | 5～12VDC |
| Temp. Effect on Zero | 0.002%F.S/℃ | Safe Overload | 150% |
| Creep | 0.018%F.S/30mins | Ultimate Overload | 200% |
| Cable | 4-Wire Shielded Cable | Baud rate | RS485:115200 |
| Cable Length | φ4×400mm | RS232:19200 | Ingress Protection |
| A/D Sampling Rate | 1200 times/sec | Communication Protocol | RS485:MODBUS RTU and Custom protoco |
| A/D Resolution | 300000 | ||
Direct manufacturing with 10+ years of OEM/ODM experience — custom capacities, connectors, cable lengths and branding.
Send your capacity, application and annual quantity — pricing, datasheet and sample options within 12 hours on business days.
Every unit is factory calibrated and inspected before dispatch; parameters on this page reflect shipped goods.
On-board ADC + digital output (RS485 / Modbus RTU / CAN) lets the WST1201 drop straight into smart weighing terminals without external instrumentation.
RS485 / Modbus
EtherNet/IP, Profinet and Modbus TCP variants of the WST1201 connect directly to plant PLCs for in-line filling, dosing and checkweighing sequences.
Profinet ready
OPC UA and MQTT variants push weight data from the WST1201 straight into MES / SCADA / cloud dashboards — no signal converter box required.
OPC UA / MQTT
| Function | Wire Color |
|---|---|
| Excitation + (Exc+) | Red |
| Excitation − (Exc−) | Black |
| Signal + (Sig+) | Green |
| Signal − (Sig−) | White |
| Model | Capacity Range | Typical Application | Choose When |
|---|---|---|---|
| WST1201 | — | This page | Current selection |
| WST1209 | 10kg~500kg | Digital load cell | Alternative model in the same class |
| WST1208 | 50/100/250/500/750Kg | Digital load cell | Alternative model in the same class |
| WST1207 | 60/100/200/300Kg | Digital load cell | Alternative model in the same class |
| WST1206 | 11,22,60,100Kg | Digital load cell | Alternative model in the same class |
| WST1205 | 60,100,200,300,500,600,800,1000(Kg) | Digital load cell | Alternative model in the same class |
Not sure which model fits your design? Send us your platform size, target capacity and environment — our engineers will recommend the right sensor within 12 hours.
The WST1201 meets standard industrial accuracy requirements. Full accuracy figures are listed in the specifications table above.
The WST1201 is available in multiple capacity steps. For requirements outside the listed range, contact us — OEM capacities can often be arranged.
Protection class details are listed in the specifications table. Ask our engineers if your environment includes wash-down, immersion or corrosive conditions.
It provides a standard industry output signal, compatible with standard weighing indicators, transmitters and PLC analog inputs.
Standard wiring follows the industry convention: excitation + red, excitation − black, signal + green, signal − white. Always confirm against the datasheet shipped with your batch.
Use the inquiry form on this page or WhatsApp us directly — we reply within 12 hours on business days. Tell us your capacity step, target annual quantity and application, and we will send pricing, the datasheet PDF and sample availability. OEM/ODM options (custom labeling, connectors, cable lengths) are available on request.
Full dimension drawings, performance curves and calibration data — sent to your inbox within 12 hours.
Deepen your selection — application guides, accuracy-class comparisons and installation notes written for B2B engineers.
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