LHT52 – Indoor Battery-Powered Temperature & Humidity Sensor – Dragino
 General Description
 Dragino 's LHT52 is a LoRaWAN sensor designed for indoor temperature and humidity measurement. It features integrated T&H sensors and offers USB Type-C connectivity for optional external probes.
 Operating on 2 AAA LR03 batteries , replaceable by the user, it offers a battery life of several years. Compatible with the LoRaWAN v1.0.3 Class A protocol, it allows long-range transmission, measurement logging (datalog) and alarm emission in the event of exceeding configured thresholds.
 Targeted Applications
-  Home automation and building automation
 
-  Cold chain management and logistics
 
-  Indoor environmental monitoring
 
-  Connected agriculture in protected environments
 
-  Industry 4.0 and smart metering
 
 Highlights
- 
 Integrated high-precision T&H sensors
 
- 
 External probe connection via USB-C
 
- 
 Long battery life on 2 AAA batteries
 
- 
 Datalog function and temperature alarms
 
- 
 Easy wall installation
 
- 
 IP52 : suitable for indoor environments
 
 Technical Specifications 
|  Characteristic | 
 Value | 
|  Temperature (internal)
 | 
 Range: -20 to +50°C  Resolution: 0.01°C  Accuracy: ±0.3°C  Drift: < 0.02°C/year | 
|  Humidity (internal)
 | 
 Range: 0 to 99.0%RH (non-condensing)  Resolution: 0.1%RH  Accuracy: ±3%RH  Drift: < 0.25%RH/year | 
|  External probe input
 | 
 USB Type-C port (compatible with Dragino temperature probes) | 
|  LoRaWAN Frequencies
 | 
 CN470, EU433, KR920, US915, EU868, AS923, AU915 | 
|  Protocol
 | 
 LoRaWAN v1.0.3 Class A | 
|  Food
 | 
 2 x replaceable AAA LR03 batteries | 
|  Protection index
 | 
 IP52 (indoor use) | 
 Interfaces and Connectors
-  LoRaWAN radio interface
 
-  USB-C port for external sensor
 
-  Firmware programming port
 
-  Tricolor status LED
 
 Pack Contents
-  1 x LHT52 Sensor
 
-  2 x AAA batteries (not included depending on version)
 
-  1 x Integrated wall bracket