Wireless Transmission
Protocol	LoRaWAN®
Frequency	CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1&2&3&4
Tx Power	16 dBm (868 MHz) / 22 dBm (915 MHz) / 19 dBm (470 MHz)
Sensitivity	-132 dBm @ 300bps
Mode	OTAA/ABP Class A
Distance Measurement
ToF FoV	25°
FoV Accuracy	± 5°
Detection Range	1 ~ 55 cm
Detection Accuracy	± 1 cm
Detection Resolution	1 mm (1.0 ≤ X ≤ 15.0 cm), 2 mm (15.0 < X ≤ 35.0 cm), 3 mm (35.0 < X ≤ 55.0 cm), X = Detection Distance
Others
Button	1 × Reset Button (Internal)
LED Indicator	1 × Indicator (Internal)
Configuration	Mobile App (via NFC)
Physical Characteristics
Power Supply	1 × 590 mAh CR2450 Lithium Battery
Battery Life	2 Years (Tested under laboratory conditions)
Operating Temperature	-10°C ~ +60°C
Relative Humidity	0 ~ 95% (Non-condensing)
Color & Material	White, ABS + PC (Flame Retardant)
Ingress Protection	IP30
Dimension	66 × 38 × 12 mm (2.60 × 1.50 × 0.47 in)
Installation	On flat surfaces with 3M tapes
Warranty	2 years

Monitoring Container Filling

The WS201 is a wireless sensor that uses Time-of-Flight (ToF) technology to monitor container fill levels with high accuracy. Working with the Milesight LoRaWAN® gateway and Milesight IoT Cloud, the WS201 allows users to remotely monitor and manage container fill levels and status in real time.

Precise Monitoring with ToF Technology

The WS201 uses advanced Time-of-Flight (ToF) technology for precise distance measurement, ensuring accurate fill level detection. It also has a minimal blind zone of only 1 cm.

Flexible Alerts

Optimize alerts and notifications by implementing threshold levels for greater flexibility.

Created for Maximum Space Efficiency

Designed to be highly compact. Its sophisticated, ultra-thin structure allows for easy installation and adapts to various dispenser sizes.

Practicality in its Purest Form

Includes a DevEUI QR code on the front for quick scanning. Features an open-top design with a buckle for easy maintenance.

Smart Bathroom Solution

A positive restroom experience directly impacts occupants’ perception of a building. The Milesight Smart Restroom Solution provides IoT-enabled information on cleanliness and hygiene.