Digital Infrared Thermometer WT300 & WT550
This professional infrared thermometer measures surface temperature of objects without contact, making it ideal for hot, hazardous, or hard-to-reach applications. The device operates by collecting infrared energy through its optical system, focusing it onto a temperature sensor, and converting the signal into accurate digital readings displayed on the LCD screen.
Key Applications
Safe, non-contact temperature measurement for industrial, mechanical, and electrical applications where direct contact is impractical or dangerous.
Product Features
- Ambient temperature measurement
- High and low temperature limit alarm
- Data retention capability
- Auto power off after 10 seconds of inactivity
- Temperature unit switchable between ℃ and ℉
- Positioning laser for accurate targeting
- Data hold function
- 12:1 distance to spot ratio
- Battery level indication
- Maximum and minimum value recording
- Average value and difference value calculation
- Adjustable emissivity (0.10-1.00)
Technical Specifications
| Temperature Range |
WT300: -50~420℃ (-58~788℉)
WT550: -50~550℃ (-58~1022℉) |
| Accuracy |
-50℃~0℃: ±3℃ / -58℉~32℉: ±5℉
0℃~420℃/550℃: ±1.5℃ or ±1.5%
32℉~788℉/1022℉: ±2.7℉/±1.5% (whichever is greater) |
| Repeatability |
1% of reading or 1℃ |
| Resolution |
0.1℃ or 0.1℉ |
| Response Time |
500 mSec, 95% response |
| Spectral Response |
5~14μm |
| Emissivity |
0.10~1.00 Adjustable (preset as 0.95) |
| Operating Temperature |
0~40℃ (32~104℉) |
| Operating Humidity |
10~95%RH non-condensing |
| Storage Temperature |
-20~60℃ (-4~140℉) |
| Dimensions |
153mm x 101mm x 43mm |
| Weight |
147.5g (including battery) |
| Power Supply |
3V (1.5V AAA battery x 2) |
| Battery Life |
Non-laser mode: 22 hours
Laser mode: 12 hours |
| Distance to Spot Ratio |
12:1 |
Package Contents
- IR Thermometer: 1 unit
- English manual: 1 copy
- Blister cardboard packaging: 1 set
- 1.5V AAA batteries: 2 pieces (not included for international transportation)
