HPT-20L
Wireless Submersible Level Transmitter
HPT-20L battery-powered hydrostatic level transmitter with a submerged probe, a separate wireless head and configurable sampling, upload and level-alarm reporting.
Hydrostatic level measurementBattery-powered wireless headAdjustable sampling and upload intervalsConfigurable high/low level-alarm reporting
- Level span options
- Selected spans within 0–300 m
- Battery capacity
- 19,000 mAh
- Accuracy
- 0.5% FS
Supplied by WKSENSOR. Ask us about pricing, availability and delivery.
Product overview
Remote probe and wireless head
Cylindrical metal probe, finite cable coil and a separate red closed head with a side antenna.
- Rotatable body
- Rotatable construction for the wireless head.
- Sampling and upload
- Adjustable intervals and platform-issued parameter commands.
- Level alarms
- Optional abnormal-condition reporting with configurable high/low level alarms.
Enclosure assembly reference
- Enclosure
- Red open shell with a side entry and lower connection.
- Circuit board
- Green board with visible components and mounting points.
- Antenna
- Black antenna alongside the circuit board.
- Retainer
- Black support surrounding the wrapped pack.
- Wrapped battery pack
- Blue wrapping shown inside the support.
- Cover
- Detached red circular cover with a shaped outer rim.
Probe-end references
Filter end
For media with impurities.
Alternative end
Narrow open extension.
Regular end
Small end openings.
Configuration and selection
- Measuring span
- 0–50 m ordered-span option; family configurations extend within 0–300 m.
- Radio configuration
- NB-IoT, LoRa, LoRaWAN or 4G version.
- Reporting settings
- Sampling and upload intervals, with optional abnormal-condition and high/low level alarms.
Technical reference
Specifications and options
| Parameter | Specification or option |
|---|---|
| Model | HPT-20L |
| Instrument function | Wireless submersible level transmitter |
| Level span options | Selected spans within 0–300 m |
| Accuracy | 0.5% FS |
| Supply voltage | 3.6 V DC |
| Power source | Battery |
| Battery configuration | One ER34615 cell |
| Battery capacity | 19,000 mAh |
| Sleep current | <30 µA |
| Ingress protection | IP67; selected configuration |
| Radio options | NB-IoT / LoRa / LoRaWAN / 4G |
| Communication protocol | LwM2M in compatible communication configurations |
| Measuring medium | Liquid |
| Assembly materials | 304 stainless steel / aluminum |
| Sensing principle | Diffused silicon |
| Brand | WKSENSOR |
| Product reference | HH-755747083872 |
Application scenarios
Liquid-level monitoring in buildings, power, factories, water, oil and petrochemicals, and fire protection.
Buildings
Modern building façades and surroundings.
Power
Electrical equipment in an outdoor substation.
Water
Treatment tanks separated by access walkways.
Oil and petrochemicals
Pumping machinery across an oilfield site.
Fire protection
Red pipework and valves in a fire-water system.
