Choosing an LPG Gas Bottle Level Sensor: Bluetooth or WiFi?
What to compare when choosing a gas bottle level sensor for a BBQ, caravan or home hot-water bottle in Australia and New Zealand.
Check your bottle first
A magnetic ultrasonic sensor needs a steel bottle with a flat area in the centre of the base. If your bottle is aluminium or composite, a magnetic sensor will not hold on.
Bluetooth: for bottles you are near
A Bluetooth sensor talks to your phone when you are close by, which suits a BBQ or caravan bottle. The MISSION TLC2412-BT is A$79 and runs on a coin-cell battery.
WiFi: for bottles you want to check from anywhere
A WiFi sensor sends the level to the cloud, so you can check a home hot-water or cooking bottle while you are out. The MISSION LPG2412-ESP-W is A$109, runs from a 5 V adapter with an Australian plug and needs power and working 2.4 GHz WiFi at the bottle, plus internet access for remote checks.
Alerts and the app
Both models use TANK IOT, where you choose the bottle shape, see the estimated remaining percentage and set low and high level alerts. App pricing or subscription terms have not been confirmed. These devices measure level, not gas leaks.
Installation
If fitting requires moving a portable bottle, turn off the appliance, close the valve and disconnect according to the supplier’s instructions first. Never move a connected bottle or lift a heavy installed cylinder yourself. Clean and dry the flat central area, fit the 72 mm sensor, keep the bottle upright and level, and configure the app. Follow the selected model’s instructions; the Bluetooth supplier data lists tilt below 8.5 degrees.