RayTemp Blue

SKU: THS-228-920

In Stock

Order now, ships today

In Stock

Order now, ships today

RayTemp Blue

Infrared Thermometers and COVID-19 Temperature Screening


  • Infrared temperatures with Bluetooth® wireless technology
  • Adjustable emissivity
  • Range to 662°F
  • 5:1 distance to spot ratio
  • Includes NIST-Traceable calibration certificate
  • Free HACCP LE mobile app for Max/Min and High/Low alarms
  • Can be integrated into existing apps
  • Includes zipper wallet for storage
  • Made in the UK

With an optic ratio of 5:1 and food grade accuracy, RayTemp Blue is perfect for close range, non-contact foodservice temperature measurements. Built with Bluetooth® wireless technology. Perform line checks faster and more accurately with readings saved directly to your smart device. Can be integrated to existing apps with available SDK - call for details.

Range -58 to 662°F (-49.9 to 350°C)
Accuracy * ±1.8°F (±1.0°C) from 32 to 212°F (0 to 100°C) otherwise ±3.6°F (±2.0°C) or 2% of reading, whichever is greater
Response 1 second
Distance to Target 5:1 target ratio (5 inch distance measures a 1 inch diameter target area)
Emissivity 0.95 default - adjustable 0.1 to 1
Spectral Range5 to 16 µm
Resolution 0.1° / 1°
Units °C/°F switchable (user reconfigurable in app)
Water Resistance IP54
Wireless Communication Bluetooth 4.0**
ApprovalsUS (FCC), Canada (IC), EU (CE - Complies with all relevant directives for Europe), AU/NZ (RCM)
Battery 3 x 1.5 volt AAA- included, 3000 hours continuous
10 minutes (adjustable in app)
Operating Range -4 to 122°F (-20 to 50°C), max ambient limits of RayTemp Blue body
Display 1 H x 1.5 W inches (24 H x 38 W mm) LCD
Dimensions 5 H x 2.2 W x 1 D inches (128 H x 56 W x 25 D mm)
Weight 4.6 oz. (130 grams)
Certificate Includes NIST-Traceable calibration certificate

*IR accuracy can be affected by the emissivity setting, target spot size, and rapid changes in ambient temperature. Accuracy specification based on ambient temperature of 77°F ±2°F (25°C ±1°C).

**The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by ThermoWorks is under license.


Free mobile app from ThermoWorks compatible with Thermapen Blue and BlueTherm One.

Download the free HACCP LE App



  • Create and deploy checklists directly from mobile devices
  • Record temperature and Yes/No items for HACCP
  • User-friendly interface shows pass/fail with limits
  • Corrective actions, user, date/time, notes saved with readings
  • Store readings to locked PDF files
  • Save to cloud drives, email, or text reports for brand visibility

Home screen, easy for staff to select User, Checklist, and Item with Hi/Lo Limits and large display with pass/fail indication around temperature.

Create, share, export, and import checklists right from mobile device with temperature and Yes/No questions.

Also compatible with other software providers:

Request List of Software Developers

Become an Integrator