It says it is NIST certified, but do you supply the certificate with the purchase or does it cost extra? Also, how often does it have to be calibrated

The NIST cert. is included in the price . Liquid in glass thermometers only need to be calibrated once; if cert. is supplied at time of purchase, you're good.

Does this thermometer have a protective case for shipping safety?

I bought two of these: H-B Instrument 3/1225 Durac Plus NIST Traceable Total Immersion General Purpose Thermometer, with Blue Spirit Liquid and White Back Glass, -10 to 225°. They were very well wrapped in a protective case for shipping. I kept the case because it continues to protect the thermometer when I am not using it. Superior product, superior shipping. Helen McCarthy

What is the diameter of this thermometer?

Have no clue, They were a gift for someone. They looked like a regular thermometer, guess 1/4" - 3/8"

Is the scale in degrees Fahrenheit or Celsius? Description is not clear - range is given in Fahrenheit, but precision in Celsius. Photo shows Celsius.

There are various models with different temp. modes & ranges. The stock picture is a Celsius model. The specific product description has what mode it is. Mine met with an accident a while back. The H-B 3/1230 is a F° model.

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SP Bel-Art, H-B DURAC Plus General Purpose Liquid-In-Glass Laboratory Thermometer; -20 to 110C, 76mm Immersion, Organic Liquid Fill (B60700-0400)

SP Bel-Art, H-B DURAC Plus General Purpose Liquid-In-Glass Laboratory Thermometer; -20 to 110C, 76mm Immersion, Organic Liquid Fill (B60700-0400)

Product ID: 41322234

Details

Age Range (Description)
Adult
Brand
SP Scienceware
Color
Blue
Display Type
Analog
Included Components
Thermometer
Outer Material
Glass

🎯±1.5°C precision accuracy

📏300mm total length

🌡️Wide -20 to 110°C range

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₹ 2961

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Description

🌡️ Stay ahead of the curve with lab precision you can trust!

ECO CONSCIOUS PACKAGING - Recyclable Safety-Pak with traceability statement for responsible labs
TRUSTED BY INDUSTRY LEADERS - Preferred choice across pharma, food, petrochemical & academic labs worldwide
VERSATILE TEMPERATURE RANGE - Covers extreme cold to hot environments from -20°C to 110°C
DURABLE GLASS WITH BLUE SPIRIT FILL - Clear white back glass and organic liquid for reliable readings
PRECISION CALIBRATED FOR PROFESSIONALS - Individually tested & ISO/IEC 17025:2005 accredited for lab-grade accuracy

The SP Bel-Art H-B DURAC Plus is a high-accuracy liquid-in-glass laboratory thermometer featuring a broad -20 to 110°C range, 300mm length with 76mm immersion depth, and ±1.5°C precision. Individually calibrated in an ISO/IEC 17025:2005 accredited lab with traceability to NIST, it’s designed for demanding scientific, industrial, and medical environments. Packaged sustainably and engineered for reliability, it’s the go-to tool for professionals who demand exact temperature monitoring.

Specifications

ASIN	B00551NHKY
Additional Features	High Accuracy
Age Range Description	Adult
Best Sellers Rank	#87,384 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Glass Thermometers
Brand Name	SP Scienceware
Color	Blue
Customer Reviews	3.5 3.5 out of 5 stars (7)
Display Type	Analog
Immersion Depth	76 Millimeters
Included Components	Thermometer
Indoor Outdoor Usage	Indoor
Item Length	11.81 Inches
Manufacturer	Bel-Art Products
Model	B60700-0400
Model Name	B60700-0400
Outer Material	Glass
Part Number	B60700-0400
Product Care Instructions	Wipe Clean
Reusability	Reusable
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	Ansi/Sama
Unit Count	1.0 Count
Upper Temperature Range	110 Degrees Celsius

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