
If your Lavatools PT12 Javelin Digital Instant Thermometer is displaying an "ERROR" message or a low icon, it's time to replace the battery. Here's how: First, fully retract the thermometer probe. Then, locate the battery door on the back of the device. Use a coin to twist the battery door open in a counterclockwise direction. Carefully remove the old CR2032 battery from the compartment. Insert a new CR2032 battery with the positive (+) side facing upwards. Finally, close the battery door by twisting it clockwise with a coin until it's secure. For visual aids and more detailed information, consult the user manual that came with your Lavatools PT12 Javelin.


