The TL8009 Digital Thermometer is a compact, battery-powered temperature sensing device designed for quick-read applications. It features a clear LCD screen and a remote wired probe, making it ideal for monitoring environments where the display needs to be separate from the heat source (like refrigerators, fish tanks, or PC cases).

Key Features

• Waterproof Probe: The sensing tip is encapsulated in plastic/metal, allowing it to be submerged in liquids (aquariums) or placed in high-humidity environments (coolers).

• Panel Mount Design: The chassis features "tabs" on the side, allowing it to be easily snapped into a rectangular cutout in a project box or dashboard.

• Low Power Consumption: A single set of LR44 batteries typically lasts over a year due to the high-efficiency LCD.

• Long Lead Wire: The 1-meter cable allows you to monitor the internal temperature of a fridge or freezer while keeping the display visible on the outside.

Popular Applications

• Refrigeration: Monitoring walk-in freezers or home refrigerators to ensure food safety.

• Aquariums: Keeping a constant eye on water temperature for sensitive fish or coral.

• HVAC/Automotive: Measuring air vent output or engine bay ambient temps.

• PC Modding: Monitoring internal chassis or liquid cooling loop temperatures.

Important Usage Notes

1. Display Environment: While the probe is waterproof and can handle up to 110°C, the LCD display unit is not waterproof and should not be exposed to extreme heat or moisture.

2. Battery Orientation: If the screen is dim or blank, check the polarity of the LR44 batteries; they are often inserted with the flat (positive) side facing up.

3. No "Off" Switch: These units are designed to be "always on." If you wish to store it for a long time without use, it is best to remove the batteries to prevent leakage.