WT101 Smart Radiator Thermostat

Milesight WT101 Smart Radiator Thermostat Featuring LoRaWAN®

WT101 is a LoRaWAN® radiator thermostat designed to help with managing heating-control systems. With 1 pre-set date period and up to 16 customized heating plans, it enables smart management of heating systems and saves unnecessary costs. WT101 is a smart and highly environment-sensitive product - abnormal temperature differences and extreme-low temperatures can quickly trigger it, and it will take fast steps to correct them by adjusting the valve opening.

Compliant with Milesight LoRaWAN® gateway and Milesight IoT Cloud solution, users can control room temperature as well as trigger other sensors or appliances easily via webpage or mobile App remotely.

Key Features

Adjust the room temperature automatically and manually with time-controlled regulation. Support up to 16 heating schedules within 1 pre-set date period. Built-in temperature sensor enables environmental detection and accurate control. Features intuitive LED display with direction adjustment to suit different installation environments. Supports open-window detection and freeze protection. Equipped with child-lock to enable tamper-proof operation in public areas. Tamper button design and theft-deterring collar provide structural anti-theft protection. Suits most common radiator valves with optional valve adapters for universal use. Easy to install with simple lock design without further setting. Equipped with NFC for one-touch configuration. Functions well with standard LoRaWAN® gateways and network servers.

Technical Specifications

Wireless Communication
Technology	LoRaWAN® (Class A)
Frequency Plans	US915/AU915/KR920/AS923
Join Mode	OTAA/ABP
Application Port	85 (default)
Temperature Control
Control Modes	Automatic Temperature Control, Valve Opening Control
Temperature Range	Configurable (default: 10-28°C)
Temperature Unit	°C or °F
Temperature Sensor	Built-in with calibration support
Smart Features
Heating Schedules	Up to 16 time-based events within 1 date period
Open Window Detection	Automatic detection with configurable response
Freeze Protection	Configurable threshold temperature
Child Lock	Physical control knob locking
Anti-theft Protection	Tamper detection and theft-deterring collar
Configuration & Interface
Configuration	NFC with Milesight ToolBox App
Display	LED display with horizontal/vertical mounting orientation
Control Knob	Physical knob for manual temperature adjustment
Reporting Interval	1-1440 minutes (default: 10 minutes)
Power & Installation
Power Supply	2 × Li-FeS2 AA Batteries (included)
Battery Life	Extended with 750mA+ output current batteries
Valve Compatibility	M30 × 1.5 mm thread (standard)
Valve Adapters	Danfoss RA, RAVL, RAV, Giacomini, M28 (Comap, Herz, TA)
Installation	Simple lock design with calibration button
Physical Characteristics
Dimensions	52 × 88 × 54 mm (approx.)
Operating Temperature	Standard room temperature range
Mounting	Horizontal or Vertical radiator valve mounting
Compliance
Certifications	CE, RoHS compliant
Protocol Support	BACnet integration available

Documentation

VS125 Datasheet

VS125 User Manual