Sato SK-8950 Waterproof Infrared Thermometer with Circular Laser

The Sato SK-8950 measures surface temperature without contact, with a circular laser marker and adjustable emissivity to suit different materials.

Measuring range: −60 to 550°C.
Approximately 12:1 distance-to-spot ratio.
Adjustable emissivity from 0.10 to 1.00.
High/low alarms and MAX, MIN, AVG and DIF display.
Backlit display and continuous measurement mode.
IP54 protection against dust and water splashes.

For industrial surface measurements; not intended for clinical body-temperature measurement.

Description
Attachments

Sato SK-8950 Infrared Thermometer with Circular Laser Marker

The Sato SK-8950 is a handheld infrared thermometer for non-contact surface temperature checks from −60 to 550°C. Its circular laser marker helps with aiming, while adjustable emissivity allows the setting to be matched to the material being measured.

It is a practical option for comparing surface temperatures during maintenance, production checks and heating or cooling investigations. The IP54 enclosure provides protection against dust ingress and water splashes for everyday industrial handling.

Key Features

Non-contact surface temperature measurement from −60 to 550°C.
Circular laser marker to assist aiming.
Adjustable emissivity from 0.10 to 1.00 in steps of 0.01.
Approximately 12:1 distance-to-spot ratio.
High and low temperature alarms with a buzzer.
MAX, MIN, average and maximum-minus-minimum difference display.
Continuous measurement mode without holding the trigger.
Backlit display, reading hold and automatic power-off.

Sato SK-8950 infrared thermometer product information

Technical Specifications

Specification	SK-8950
Catalogue number	8269-00
Measuring range	−60 to 550°C
Accuracy: 0 to 550°C	±2°C or ±2% of reading, whichever is greater
Accuracy: below 0°C	±(2°C + 5% of the reading magnitude)
Accuracy conditions	Blackbody measurement at 23 ±3°C ambient temperature and emissivity 0.95
Display resolution	0.1°C
Response time	Approximately 1 second to reach 90% of the response
Emissivity adjustment	0.10 to 1.00, in 0.01 steps
Distance-to-spot ratio	Approximately 12:1
Detector / spectral range	Thermopile / 8–14 μm
Laser marker	Red circular laser; Class II; 650 nm; output below 1 mW
Ingress protection	IP54: dust protection and resistance to splashing water
Operating temperature	0 to 50°C, without condensation
Power supply	Two AAA alkaline batteries
Battery life	Approximately 14 hours of continuous measurement with laser and backlight on, under normal temperature conditions
Dimensions	Approximately 42 W × 143 H × 80 D mm
Weight	Approximately 196 g including batteries
Supplied accessories	Two AAA alkaline batteries, neck strap and instruction manual

Product Information

Sato SK-8950 infrared thermometer reference information

Understanding the 12:1 Distance-to-Spot Ratio

The thermometer measures an area rather than a single point. As the distance increases, the measurement area becomes larger. At a distance of approximately 600 mm, the spot diameter is approximately 50 mm.

Keep the target larger than the measuring spot so surrounding surfaces do not contribute unwanted temperature information. Sato defines the spot using the area receiving 90% of the target’s emitted energy.

Sato SK-8950 distance-to-spot ratio and measurement area

Circular Laser Marker and Measurement Area

The laser circle is an aiming guide. Sato specifies that the laser circle and actual measuring area coincide at a measurement distance of 2,000 mm. At other distances, allow for the difference between the laser indication and the infrared measuring area.

Relationship between the SK-8950 circular laser marker and infrared measurement area

Getting Useful Surface Temperature Readings

Match the emissivity: use a setting appropriate to the target surface. Reflective metal surfaces can be affected by surrounding thermal radiation.
Check the target size: move closer when measuring small objects so the target fills the measurement area.
Measure the exposed surface: ordinary glass prevents this thermometer from reading the object behind it; it detects the glass surface instead.
Allow temperature stabilisation: when moving between environments with a temperature difference of 10°C or more, the manual specifies at least 30 minutes for the instrument to acclimatise.
Use a probe for internal temperature: an infrared reading represents the surface. Use an appropriate contact probe when the required measurement is inside a liquid, food item or material.

Alarms and Display Functions

Set upper and lower limits to receive a buzzer alert when a reading moves outside the selected limits. MAX and MIN show the extremes during measurement, AVG displays the average, and DIF shows the difference between maximum and minimum readings.

Automatic measurement mode allows continuous operation without holding the trigger. During normal trigger operation, the last reading remains on screen for one minute after release before automatic power-off.

Water Protection and Handling

The IP54 rating supports use with wet hands and protection from splashes; it is not an immersion rating. Keep the optical window clean and follow the manufacturer’s cleaning instructions. The Class II laser must not be directed at anyone’s eyes.

The SK-8950 is an industrial surface thermometer and is not intended for clinical body-temperature measurement.

Related Temperature Instruments

Need Help Selecting an Infrared Thermometer?

Contact Seacom Process Instruments Sdn Bhd with the target material, surface finish, temperature range, object size and measuring distance. We can help you assess whether the SK-8950 suits the task or whether a contact probe would be more appropriate.