Understanding the BL-ST-051 Sensor
The ROYALE brand does not have a dedicated TPMS sensor listing for the BH-Sens BL-ST-051, but that doesn’t mean it’s automatically incompatible. This sensor is a direct OE replacement for certain Nio and Onvo platforms—brands that share platform architecture with some Chinese-market vehicles. The sensor operates at 433MHz, which is a common frequency in Asian and European vehicles. It’s pre-programmed, meaning it ships ready to install without needing a separate cloning step, though you should still verify the sensor ID matches your vehicle’s expected protocol.
Compatibility Table: Known Fitments
The BL-ST-051 covers six specific vehicle applications. Here’s a breakdown of what’s confirmed:
| Vehicle Model | Year Range | OE Part Numbers | Sensor Type | Frequency |
|---|---|---|---|---|
| Nio ES6 | 2020-2024 | P0242518, P0302230 | Clamp-in | 433MHz |
| Nio ES8 | 2020-2024 | P0242518, P0302230 | Clamp-in | 433MHz |
| Nio EC6 | 2020-2024 | P0242518, P0302230 | Clamp-in | 433MHz |
| Nio ET7 | 2022-2025 | P0385734 | Clamp-in | 433MHz |
| Onvo L60 | 2024-2025 | P0385734 | Clamp-in | 433MHz |
If you own a ROYALE vehicle, start by checking whether your TPMS sensor has any of these OE numbers stamped on it. ROYALE does not manufacture its own sensors—they source from suppliers like Baolong (BH-Sens) or others. The BL-ST-051 uses a Baolong chipset, which is common in many Asian OEM and aftermarket sensors.
How to Verify Fitment Before Buying
Step 1: Check Your Current Sensor’s Frequency
Most TPMS sensors have the frequency printed on the housing. Remove the valve stem cap and look for “433MHz” or “315MHz” stamped near the base. The BL-ST-051 only operates at 433MHz. If your ROYALE uses 315MHz, this sensor will not work.
Step 2: Confirm the Sensor Type
The BL-ST-051 is a clamp-in sensor, meaning it uses a metal nut to secure the sensor to the wheel. If your vehicle uses snap-in (rubber stem) sensors, this unit is physically incompatible. Check your current sensor—clamp-in sensors have a metal body with a separate nut; snap-ins look like a single rubber piece.
Step 3: Cross-Reference OEM Numbers
Look for P0242518, P0302230, or P0385734 on your existing sensor. These numbers are laser-etched or printed on a sticker. If you see any of these, the BL-ST-051 is a direct replacement. If not, you’ll need to use a TPMS diagnostic tool (like an Autel or Bartec) to read the sensor ID and protocol. The BL-ST-051 uses the Schafer/Conti protocol, which is common in Nio and Onvo but not universal.
Step 4: Check Your Vehicle’s TPMS Generation
ROYALE vehicles built after 2020 generally use direct TPMS (sensors inside the tire). Older models may use indirect systems (ABS-based). The BL-ST-051 is only for direct TPMS systems. If your car has a tire pressure warning light that resets via a button on the dash, it’s likely direct TPMS.
What If the BL-ST-051 Doesn’t Fit Your ROYALE?
If the BL-ST-051 isn’t compatible, don’t force it. Using the wrong sensor can cause incorrect pressure readings, warning light issues, or failure to learn. Instead, consider these alternatives:
- Cross-check with other BH-Sens models: Baolong makes dozens of TPMS variants. Look for BH-Sens sensors with your specific ROYALE model’s OE number.
- Use a programmable sensor: A universal TPMS sensor (like Autel MX-Sensor or Schrader EZ-sensor) can be programmed to match your ROYALE’s protocol. These are more flexible but require a programming tool.
- Contact the seller: When buying from risensauto.com, provide your VIN and current sensor OE number. They can verify if the BL-ST-051 or another SKU fits.
Recommended Part
If your ROYALE uses clamp-in sensors at 433MHz with an OE number matching P0242518, P0302230, or P0385734, the BL-ST-051 | BH-Sens 433MHz TPMS Tire Pressure Sensor | Fits Nio, Onvo | OE# P0242518, P0302230, P0385734 is a solid choice. It’s pre-programmed, so installation is straightforward: remove the old sensor, install the new one with a new seal kit, torque the nut to the manufacturer’s spec (typically 4-6 Nm—check your vehicle manual), and then use a TPMS tool to trigger the new sensor so the car learns it.
FAQ
Can I use the BL-ST-051 on a ROYALE that originally uses snap-in sensors?
No. The BL-ST-051 is a clamp-in sensor with a metal body and separate nut. Snap-in sensors have a rubber stem and a different mounting mechanism. Installing a clamp-in sensor in a wheel designed for snap-ins can cause air leaks or damage to the wheel.
How do I know if my ROYALE uses 433MHz or 315MHz TPMS sensors?
Look at the existing sensor. The frequency is usually printed on the metal housing or the sticker. If you can’t read it, use a TPMS diagnostic tool—it will display the frequency when it detects the sensor. Most ROYALE models from 2020 onward use 433MHz, but always verify.
What happens if I install a sensor with the wrong protocol?
The vehicle’s TPMS module won’t recognize the sensor. The tire pressure warning light will stay on or blink, and you won’t get accurate pressure readings. Some systems may even trigger a fault code. Always confirm protocol compatibility before installation.
Does the BL-ST-051 require programming before installation?
No—it’s pre-programmed to the Nio/Onvo OE protocols. However, you still need to “learn” or “register” the sensor to your vehicle using a TPMS tool or the car’s relearn procedure. This is a separate step from programming and is required for any new sensor.