Planet - LS100-SMK-915M - Smoke Detector LoRaWAN, 902-928MHz, 2.3V – 3.3V

Product Overview

The Planet LS100-SMK is an IP20-rated LoRaWAN smoke detector with smoke sensing and a 60°C high-temperature alarm, featuring an 85 dB siren at 3 meters. It supports US915 and EU868 bands, LoRaWAN Class A with OTAA/ABP, runs on two AAA batteries (not included), and offers -136 dBm receiver sensitivity for reliable communication.

Key Configuration

• Detection: Smoke particles and high temperature (>60°C).
• Alarm: 85 dB @ 3 meters.
• Frequency: US915 (902–928 MHz) or EU868 (863–870 MHz).
• TX power: US915 20 dBm / EU868 16 dBm.
• RX sensitivity: -136 dBm (LoRa, SF12, 293 bps).
• Battery: 2 × 1.5V AAA alkaline (not included), up to 4.7 years (25°C, 60-min reports, 20 dBm, SF10).
• Dimensions: Ø106 × 40.6 mm; weight: 105 g.

Key Features

It features a built-in 85 dB siren at 3 m for occupant alerts and supports LoRaWAN Class A with OTAA/ABP activation. The device has ultra-low power consumption (12 µA standby, 580 mA wake-up), a low-battery threshold of 2.4 V, and IP20 indoor protection. It is certified under CE RED and FCC Part 15B and is compatible with standard LoRaWAN gateways such as the PLANET LCG-300 series.

Technical Context

The LS100-SMK combines smoke and temperature monitoring for fire safety in residential, commercial, and industrial settings. Using LoRaWAN, it provides long-range, low-power communication (up to 5 km urban / 15 km line-of-sight) and sends alerts when smoke is detected, or temperature exceeds 60°C, with an 85 dB local alarm for immediate warning.

Installation Notes

This IP20-rated indoor device (Ø106 × 40.6 mm, 105 g) operates from -10°C to 55°C (<90% RH) and stores from -40°C to 85°C. Powered by two AAA batteries (not included), it lasts up to 4.7 years under typical conditions (25°C, 60-min reports, 20 dBm, SF10), supports US915 and EU868 bands with LoRaWAN Class A (OTAA/ABP), and mounts easily on ceilings or walls.