Spark WL-100 Tank Level Monitor
Square · 1:1
Big tanks. Deep tanks. One clear number.
The Spark WL-100 measures tanks up to 10 m deep with ultrasound, without touching the liquid. The sensor sends the level by LoRa radio to a receiver in the house, and you see it in the Tuya Smart app too, with high and low level alarms.
10m
Maximum tank installation height.
40cm
Minimum distance below the sensor / blind area.
5lights
Level steps at 20, 40, 60, 80 and 100%.
Built for tall tanks
Mount the ultrasonic sensor on the tank. It measures from 40 cm to 10 m without contact and sends the level by LoRa to the indoor receiver. The receiver and Tuya Smart app show the level.
Ultrasound reads without touching the liquid.
LoRa radio connects sensor and receiver.
Check the receiver lights or the Tuya app.
The receiver
Five blue lights show the level in 20% steps. The receiver also has LoRa antenna, Wi-Fi and status lights, and a power button. For exact level ratio and depth, open Tuya Smart.
20, 40, 60, 80 and 100%.
Level ratio and depth in the app.
Tuya Smart and Smart Life.
High and low alarms
Choose high and low levels for your tank. The Tuya Smart app sends the high or low level notification even when you are away. Ultrasound supports water, oil and other liquids without contact.
Choose the level before the tank overflows.
Choose the level before it runs dry.
Read level ratio and depth through the app.
Mount it right
Screw the probe through the tank top and point it straight down, perpendicular to the liquid surface. Keep the highest liquid level at least 40 cm below the sensor, with a maximum sensor-to-bottom height of 10 m.
Hold the sensor perpendicular to the liquid.
Falling water can cause false echoes.
Nearby tank walls can cause false echoes.
Planning a home or a building? A Spark partner can specify the right WL-100 for it.