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Red handheld infrared thermometer model ST656 with digital display and trigger

Sentry

Sentry ST656 Infrared Thermometer -50~316°C DS 12:1

SKU CH-JRS2-NBGQD MPN ST656

Measures surface temperature from -50 °C to 316 °C with a 12:1 distance-to-spot ratio and 0.1 °C resolution

  • Color/FinishRed
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • Measures from -50 °C to 316 °C for wide low-temperature tasks
  • 12:1 distance-to-spot ratio lets you read targets from a safer distance
  • 1 °C resolution gives fine detail on small temperature changes
  • Non-contact infrared design avoids contamination in food or HVAC work
  • Rugged compact build withstands regular field use

Low-temperature infrared thermometer

The Sentry ST656 is a non-contact infrared thermometer built for low-temperature measurement tasks. It covers a range of -50 to 316 °C with a 12:1 distance-to-spot ratio and 0.1 °C resolution.

Suited for food, HVAC and lab checks

This instrument suits technicians checking food-processing surfaces, HVAC energy audits or science-experiment samples where contact probes are impractical. It is not suited for high-temperature industrial processes beyond 316 °C or for applications needing a narrower spot size than the 12:1 ratio provides.

12:1 distance-to-spot ratio

The 12:1 distance-to-spot ratio determines the measurement spot diameter at a given working distance and decides whether the thermometer can resolve the target area accurately.

Highlights

  • Measures from -50 °C to 316 °C for wide low-temperature tasks
  • 12:1 distance-to-spot ratio lets you read targets from a safer distance
  • 1 °C resolution gives fine detail on small temperature changes
  • Non-contact infrared design avoids contamination in food or HVAC work
  • Rugged compact build withstands regular field use

Specifications

BrandSENTRY
ModelST656
Color/FinishRed
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

How loud is the ST656 when I use it continuously for HVAC audits?

The ST656 has no moving parts, so it runs silently during extended low-temperature scanning sessions.

What do I need to supply before the ST656 will take its first reading?

The unit requires a standard 9 V battery, which is not included in the box.

Will the ST656's 12:1 distance-to-spot ratio work alongside my older contact probe on the same duct?

Yes, the 12:1 optics let you measure from further away while the probe stays in contact, covering -50 °C to 316 °C without interference.

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