UT305S - Thermometer Uni-T - Free user manual and instructions
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| Product Type | Non-contact infrared thermometer |
| Model | UT305S |
| Brand | Uni-T |
| Temperature Range | -50°C to 380°C (-58°F to 716°F) |
| Accuracy | ±1.5% or ±1.5°C (whichever is greater) for 0-380°C |
| Resolution | 0.1°C / 0.1°F |
| Distance to Spot Ratio (D:S) | 12:1 |
| Response Time | < 500 ms |
| Emissivity | Fixed at 0.95 |
| Display Type | LCD with backlight |
| Laser Sight | Class II laser (< 1mW, 630-670nm) |
| Auto Power Off | After approx. 15 seconds of inactivity |
| Data Hold | Yes, auto hold after measurement |
| Measurement Modes | Current, Max, Min, Average, Differential |
| Battery | 9V battery (6F22 or equivalent) |
| Battery Life | Approx. 12 hours continuous use |
| Dimensions | 150 x 100 x 38 mm (5.9 x 3.9 x 1.5 in) |
| Weight | Approx. 150 g (5.3 oz) including battery |
| Operating Environment | 0°C to 50°C (32°F to 122°F), < 90% RH non-condensing |
| Storage Environment | -20°C to 60°C (-4°F to 140°F), < 80% RH |
| Care and Cleaning | Wipe lens with a soft dry cloth; avoid solvents |
| Safety Certifications | CE, RoHS |
| Spare Parts & Repairability | Replaceable 9V battery; lens and housing not user-serviceable |
| General Information | Compact, portable design for non-contact surface temperature measurement |
Frequently Asked Questions - UT305S Uni-T
How do I use the UT305S thermometer?
Point the thermometer at the object, press the trigger, and release to hold the reading. The laser indicates the center of the measurement area. Refer to the manual for detailed operating instructions.
What is the temperature measurement range?
The UT305S measures temperatures from -50°C to 380°C (-58°F to 716°F).
What is the accuracy of the UT305S?
Accuracy is ±1.5% or ±1.5°C (whichever is greater) for the range 0-380°C. For temperatures below 0°C, accuracy is ±3°C.
What type of battery does the UT305S use and how do I replace it?
It uses a standard 9V battery (6F22). Slide off the battery compartment cover, replace the battery, and snap the cover back on.
How do I switch between Celsius and Fahrenheit?
Press and hold the MODE button for 2-3 seconds to toggle between °C and °F. The display will show the selected unit.
Is the laser safe for eyes?
The device uses a Class II laser (< 1mW). Avoid direct eye exposure; do not point at eyes. It is safe for general use when used as intended.
How do I clean the lens?
Use a soft, lint-free cloth to gently wipe the lens. Do not use solvents or abrasive cleaners. Keep the lens clean for accurate measurements.
Why does the device turn off automatically?
The auto power-off feature saves battery. After approximately 15 seconds of inactivity, the thermometer turns off automatically.
What is the distance to spot ratio?
The D:S ratio is 12:1. At a distance of 12 inches, the measurement spot diameter is 1 inch. For most accurate results, keep the distance within the ratio.
Can I measure body temperature with the UT305S?
The UT305S is designed for surface temperature measurement and is not intended for medical use. It can measure skin temperature but may not be as accurate as a medical thermometer.
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USER MANUAL UT305S Uni-T
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Product information
Brand : Uni-T
Model : UT305S
Category : Thermometer