HPT-21TH
Wireless Temperature and Humidity Transmitter
Wall-mounted air temperature and humidity transmitter with an integrated sensing cover, configurable reporting intervals and 4G, NB-IoT, LoRa or LoRaWAN versions.
- Reference temperature span
- −40–100 °C; reference configuration
- Other temperature-span options
- −20–60 °C / −20–85 °C; alternative configurations
- Humidity span
- 0–100% RH
Supplied by WKSENSOR. Ask us about pricing, availability and delivery.
Product overview
The HPT-21TH measures air temperature and relative humidity. Its perforated sensing cover connects directly to the radio enclosure, with wall or magnetic mounting available.
Integrated air-monitoring assembly
The antenna and perforated sensing cover connect directly to the wall-mount housing.
- Collection and reporting
- Adjustable collection and upload intervals.
- Remote configuration
- Platform commands configure supported parameters.
- Optional alarms
- Abnormal-condition and high/low alarm reporting.
- Magnetic operation
- Magnet-triggered device on/off and data upload.
Configuration and selection
- Temperature span
- −40–100 °C reference configuration; −20–60 °C and −20–85 °C alternatives.
- Wireless version
- 4G, NB-IoT, LoRa or LoRaWAN.
- Power configuration
- 3.6 V DC battery version or 24 V DC configuration.
- Mounting
- Wall mounting or magnetic mounting.
Technical reference
Specifications and options
| Parameter | Specification or option |
|---|---|
| Model | HPT-21TH |
| Measurement medium | Air |
| Reference temperature span | −40–100 °C; reference configuration |
| Other temperature-span options | −20–60 °C / −20–85 °C; alternative configurations |
| Humidity span | 0–100% RH |
| Reference humidity accuracy | 3% RH at 5–90% RH; reference configuration |
| Radio versions | 4G / NB-IoT / LoRa / LoRaWAN |
| Battery-version supply | 3.6 V DC |
| External-power option | 24 V DC; selected configuration |
| Battery reference | Two ER34615 cells, 19,000 mAh each |
| Sleep current | <30 µA; battery reference configuration |
| Enclosure protection | IP67; reference configuration |
| Protocol option | LwM2M; configuration dependent |
| Mounting | Wall mounting / magnetic mounting |
| Housing material | ABS |
| Brand | WKSENSOR |
| Product reference | HH-970541356868 |
Application scenarios
Temperature and humidity monitoring applications include equipment rooms, cold rooms, workshops, hospitals, warehouses and greenhouses.
Warehouses and logistics
Storage racks and warehouse aisles.
Greenhouses
Crop rows and greenhouse walkways.
Also used in buildings, water utilities and fire-protection monitoring.



