B2B buyer comparison
Capacitive vs Ultrasonic Level Sensor: B2B Comparison
Choose capacitive sensing for compact tanks, oils, chemicals, or bulk solids. Choose ultrasonic for non-contact measurement of clean liquids and longer ranges up to 20m.
Comparison at a Glance
Published values below come from the current AccuMeasure product specifications. Final configuration depends on the medium, installation, output, and certification.
| Decision point | AM-CL100 Capacitive Level Sensor | AM-UL20 Ultrasonic Level Sensor | Buyer guidance |
|---|---|---|---|
| Starting price | $35 FOB Xi'an | $55 FOB Xi'an | Confirm configuration and freight in the formal quote. |
| MOQ / lead time | 50 units / 15-20 days | 50 units / 15-20 days | One sample is available before a bulk order. |
| Measurement principle | Contact capacitive probe | Non-contact ultrasonic | Use non-contact measurement when the sensor must not touch the medium. |
| Published range | 0.5-6m | 0.5-20m | Ultrasonic covers taller tanks; confirm the top dead zone before ordering. |
| Published accuracy | ±1% FS | ±1% FS | Both fit general tank monitoring; neither is the first choice for millimeter accuracy. |
| Best-fit media | Oil, water, chemicals, and some bulk solids | Clean water and compatible chemical liquids | Confirm dielectric behavior for capacitive probes and foam or vapor for ultrasonic sensors. |
| Wetted material | 304/316L SS, PP, or PVDF | PVDF transducer | Send the medium name and concentration for a compatibility check. |
| Output | 4-20mA / RS485 Modbus | 4-20mA / RS485 Modbus | Both integrate with common PLC and SCADA systems. |
Choose AM-CL100 when...
- The tank is compact and a probe can contact the medium.
- You need 304/316L SS, PP, or PVDF wetted-material options.
- The application includes oil, chemicals, or compatible bulk solids.
Choose AM-UL20 when...
- The process requires non-contact measurement.
- The tank range is above 6m and no more than 20m.
- The liquid surface is relatively clean, without heavy foam or dense vapor.
RFQ Information to Send
- Tank height, nozzle size, and mounting position
- Medium name, concentration, temperature, and pressure
- Expected foam, vapor, agitation, or buildup
- Required output: 4-20mA or RS485 Modbus
- Order quantity, target delivery date, and destination country
Factory & Supply Facts
- Exporting
- Since 2014
- Markets
- 40+ countries
- Pre-shipment test
- 72 hours
- Warranty
- 2 years
Calibration certificates and serial-number traceability are supplied with each unit. Verify available approvals for the exact model and configuration before purchase.
Buyer FAQ
Is a capacitive or ultrasonic level sensor better for a water tank?
Ultrasonic is usually the simpler non-contact choice for clean water tanks. Capacitive sensing is useful when a probe is acceptable or when material and vessel geometry favor contact measurement.
Which sensor handles foam or vapor better?
Heavy foam or dense vapor can weaken ultrasonic signals. A capacitive probe may be more stable if buildup is controlled; for demanding non-contact duty, consider 80GHz radar.
What are the MOQ and lead time for these models?
AM-CL100 and AM-UL20 both have a published bulk MOQ of 50 units and a standard lead time of 15-20 days. One sample unit is available at unit price plus shipping.
Ready to validate the right model?
Send your operating conditions and target quantity. We will confirm the model, configuration, price, and lead time in one quotation.
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