LAOLAU JD05/JD05K Infrared Thermometer -58°F to 1472°F
LAOLAU JD05/JD05K Infrared Thermometer -58°F to 1472°F
LAOLAU JD05 / JD05K Handheld Infrared Thermometer — Precision Non-Contact Temperature Measurement
The LAOLAU JD05 and JD05K are professional-grade, handheld infrared thermometers designed for industrial, HVAC, electrical, automotive, and culinary applications. With a wide measurement range of -58°F to 1472°F (-50°C to 800°C), a fast 0.5-second readout, and an adjustable emissivity setting, these tools deliver accurate, reliable readings without ever touching the surface being measured.
Made in Mainland China.
Choose Your Model
- JD05 — Non-contact infrared temperature measurement with standard black LCD display. Adjustable emissivity (default 0.95), max/min modes, data hold, °C/°F switching, laser targeting, low battery indicator, and auto-shutoff.
- JD05K — All JD05 features PLUS a K-Type thermocouple probe input (-58°F to 572°F / -50°C to 300°C), ambient humidity measurement (RH 5%–99%), and a high-definition green backlit LCD display for clear readings in any lighting condition.
Key Features
- ✔️ Wide Temperature Range: -58°F to 1472°F (-50°C to 800°C) for infrared; K-Type probe range -58°F to 572°F (JD05K only)
- ✔️ 12:1 Distance-to-Spot Ratio: Single-point laser locks onto the target from a safe distance — ideal for hard-to-reach areas
- ✔️ 0.5-Second Instant Readout: Minimizes downtime and boosts productivity on the job
- ✔️ Adjustable Emissivity: Fine-tune for different surface materials; default 0.95
- ✔️ Non-Contact Measurement: Safely scan energized wires, hot machinery, or rotating components without risk of contact
- ✔️ Max/Min Value Mode & Data Hold: Capture peak and low readings with ease
- ✔️ High/Low Temperature Alarm: Get alerted when readings exceed preset thresholds (JD05)
- ✔️ Auto Shut-Off: Powers down automatically after 15 seconds of inactivity to preserve battery life
- ✔️ Humidity Measurement: RH 5%–99% ambient humidity reading (JD05K only)
- ✔️ CE & RoHS Certified
Who Is the 12:1 Ratio Perfect For?
- HVAC Technicians: Diagnose ceiling vents or rooftop equipment readings from the floor without a ladder
- Electricians: Identify overloaded circuits in tight panels without direct access
- Mechanics: Safely scan for engine hot spots through narrow gaps
- Industrial Chefs: Monitor oven cores or fryer oil temperatures from a safe, smoke-free distance
Technical Specifications
| Infrared Temperature Range | -50°C to 800°C (-58°F to 1472°F) |
| K-Type Probe Range (JD05K) | -50°C to 300°C (-58°F to 572°F) |
| Humidity Range (JD05K) | RH 5% – 99% |
| Measurement Accuracy | ≥100°C: ±2% | ≤100°C: ±2°C |
| Distance-to-Spot Ratio | 12:1 |
| Response Time | 0.5 seconds |
| Operating Temperature | 0°C – 50°C (32°F – 122°F) |
| Display | HD Digital LCD (JD05K: green backlit) |
| Power | 2× 1.5V AAA batteries (not included) |
| Certifications | CE, RoHS |
| Model Numbers | JD-05 / JD-05K |
| Origin | Mainland China |
⚠️ Important Notice: This infrared thermometer measures surface temperatures of inanimate objects only. It is NOT designed or approved for measuring human body temperature. Probe and infrared methods detect different layers (surface vs. internal), so results between the two modes may vary — always select the most appropriate method for your application.
For general guidance on workplace temperature measurement safety and best practices, visit OSHA's Heat Safety Resources.
Frequently Asked Questions
Q: What is the difference between the LAOLAU JD05 and JD05K infrared thermometers?
A: The JD05 features non-contact infrared temperature measurement (-58°F to 1472°F), adjustable emissivity, max/min modes, data hold, and a standard black LCD. The JD05K includes all of the JD05's functions and adds a K-Type thermocouple probe input (for contact-based measurement up to 572°F), ambient humidity measurement (RH 5%–99%), and a high-definition green backlit LCD display for use in low-light environments.
Q: Do the JD05 or JD05K infrared thermometers come with batteries?
A: No, batteries are not included. Both the JD05 and JD05K require 2× 1.5V AAA batteries, which must be purchased separately.
Q: What does adjustable emissivity mean and why does it matter?
A: Emissivity is a measure of how efficiently a surface radiates heat. Different materials (metal, plastic, wood, painted surfaces) have different emissivity values. The LAOLAU JD05/JD05K allows you to adjust the emissivity setting (default: 0.95) so your readings are accurate across a wide variety of surface materials — making it far more versatile than fixed-emissivity thermometers.
Q: Can I use this thermometer to measure human body temperature?
A: No. The LAOLAU JD05 and JD05K are designed exclusively for measuring the surface temperature of inanimate objects. They are not calibrated or approved for measuring human or animal body temperatures.
Q: What is the distance-to-spot ratio, and why does 12:1 matter?
A: The 12:1 distance-to-spot (D:S) ratio means that for every 12 inches of distance from the target, the thermometer measures a 1-inch-diameter spot. A higher ratio allows you to measure smaller targets from a greater distance — ideal for reading temperatures on ceiling vents, hot engine components, or industrial equipment from a safe standoff distance.