Digital Thermometer K-017 Dual LED Display DC 4-28V -67~+248°F/-55~+120°C 2 Waterproof NTC Probes
Dual LED display thermometer measures two locations at once from -67 to 248°F or -55 to 120°C with waterproof NTC probes
- ColorBlack,Blue,Green
- Dual LED display shows both scales simultaneously
- Switch between °F and °C with a button press
- Two waterproof NTC probes measure separate locations at once
- Operates from DC 4-28V in vehicles or fixed installations
- Wide range from -67 °F to +248 °F and -55 °C to +120 °C
Dual LED Thermometer for Vehicles and Appliances
This thermometer monitors two separate locations at once using a pair of waterproof NTC probes. It runs on any DC supply between 4 and 28 volts, making it suitable for cars, boats, air-conditioning units or refrigeration systems. The red and blue display shows both readings simultaneously.
Voltage and Temperature Limits
The unit only operates from a DC 4-28V source, so it cannot be connected directly to mains voltage. Its measuring range spans -67 to +248 degrees Fahrenheit or -55 to +120 degrees Celsius; readings outside this window are not supported. The green wire is positive and the black wire is negative.
Simple Wiring With Two Probes
Installation requires connecting the 15 cm power cable to a suitable DC source and routing the two 100 cm probe wires to the measurement points. Probes are 4.9 mm in diameter and 25 mm long, so they fit most standard openings. Incorrect polarity on the power leads will prevent the display from working.
Highlights
- Dual LED display shows both scales simultaneously
- Switch between °F and °C with a button press
- Two waterproof NTC probes measure separate locations at once
- Operates from DC 4-28V in vehicles or fixed installations
- Wide range from -67 °F to +248 °F and -55 °C to +120 °C
Specifications
| Color | Black,Blue,Green |
|---|
Questions about this item
Which color version of the K-017 thermometer should I choose?
The unit comes in Black, Blue or Green; all three share the same DC 4-28 V supply, dual LED display and two waterproof NTC probes, so pick the colour that best matches your dashboard or panel.
What does the -67 to +248 °F range mean when the thermometer is installed in a vehicle?
It covers from extreme cold starts up to engine-bay heat, letting you monitor coolant, cabin or intake temperatures across the full automotive envelope.
How does the DC 4-28 V input limit where I can wire the K-017?
The wide 4-28 V range lets you connect directly to 12 V or 24 V vehicle systems without a separate regulator, but it cannot run from household mains or USB ports.
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