Meross Smart Sprinkler Timer MST200 vs YoLink Smart Sprinkler Timer

The Meross app sends instant notifications for system irregularities.

Alarm Strategy settings send app push, email and SMS notifications, and can trigger YoLink sirens, SpeakerHubs or a scene. The timer also reports low battery in the app and blinks its LED red when the batteries need replacing.

The official specification lists the timer's wireless standard as 433MHz RF and requires a Meross Smart Hub: the hub holds the 2.4GHz Wi-Fi radio, the timer does not. | One hub covers up to 24 timers.

The user guide states the timer connects to the internet through a YoLink hub and does not connect directly to WiFi or the local network. The radio is LoRa, rated up to 1/4 mile in open air.

Weather-based Smart Skip suspends watering before, during and after rain and in freezing or high-wind conditions, and an adjustable auto shut-off (15 minutes by default) closes the valve on its own.

The timer can be used as an action in a YoLink automation (for example, start watering when a soil moisture sensor reads low), and Control-D2D pairs it directly to another YoLink device so it keeps working without internet or cloud.

The official feature list describes one-touch manual watering on the two zone buttons and never mentions a child or button lock.

The app keeps a watering history alongside historical water consumption.

The app keeps 180 days of watering logs, showing when watering started, how long it ran and how much water was used, plus a watering calendar view.

Real-time and historical water consumption per zone in the Meross app.

The integrated flow meter measures real-time water flow and total usage, which is what makes gallon-based watering and the usage logs possible.

Alexa supports neither the Matter Water Valve device type nor any irrigation category, so the valve has nothing to map to

Alexa supports neither the Matter Water Valve device type nor any irrigation category, so the valve has nothing to map to

Per-zone schedules with adjustable start times, durations from 1 minute to 24 hours and frequency by weekday, fixed interval or odd/even days. | Watering plans are stored on the timer itself, so they keep running when the internet connection drops (the weather skip does not).

Up to 12 schedules at a time, with start and end dates, repeat days (daily, weekly, odd/even or custom cycles) and start times. Schedules run on the device itself, so no internet connection is required.