
Product Description
Discover the Milwaukee® Infrared TEMP-GUN™, offering clear readings, durability, and precise temperature measurements for any application.
Technical Specifications
- Manufacturer part number (MPN)
- 2278-20NST
- Brand
- Milwaukee Tool
- Category
- Instruments
- Tool Warranty
- 5 Years
- Battery Type
- M12™, 12V Lithium-Ion
- Display Type
- LCD
- Material Composition
- Plastic
- Length
- 10.55 in
- Weight
- 9.6 oz
- Height
- 2.1 in
- Width
- 6.9 in
- Temperature Range
- -22⁰F to 1022⁰F
- MIN MAX AVG DIF
- Yes
- Display Resolution
- 0.1° F (0.1° C)
- Basic Accuracy
- +/- 1.8%
- Battery Life
- Greater than 45hrs (All Functions)
- Storage Temperature
- -4⁰F to 140⁰F
- Distance to Spot Ratio
- 12:1
- Repeatability
- +/-.08%
- Emissivity
- Fixed, 0.95
- Alarm HI LO
- Yes
- Laser On Off
- Yes
- Trigger Lock
- Yes
- Rubber Over molding
- Yes
- Drop Test
- 6'
- Power Source
- Cordless
- Battery System
- M12
Standards & Compliance
- HS Code
- 9025.19
Cross References
- OEM-URL https://www.milwaukeetool.com/products/details/m12-12-1-infrared-temp-gun/2278-20nst
Product Documentation
Document preview: Operator's Manual (58-14-2278d1)
More from Milwaukee

Milwaukee
M18™ REDLITHIUM™ XC Extended Capacity Battery
48-11-1828

Milwaukee
SAWZALL® Rough-In Blade - 5 PK
48-00-1610

Milwaukee
6" 4/6 TPI SAWZALL® Blades (5 Pk)
48-00-5041

Milwaukee
SAWZALL™ THE TORCH™ Diamond Grit Blade 9"
48-00-1450

Milwaukee
3-5/8" 10 TPI SUPER SAWZALL® Blade (5 PK)
48-00-5161

Milwaukee
SAWZALL™ THE TORCH™ Diamond Grit Blade 6"
48-00-1440

Milwaukee
3-5/8" 14 TPI SUPER SAWZALL® Blade (5 PK)
48-00-5162

Milwaukee
SAWZALL® Ductwork Blade - 5 PK
48-00-1630
Catalogue entry last verified: 2026-10-03. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 2278-20NST?
- 2278-20NST can be ordered from cballast.com as a Milwaukee catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Milwaukee product?
- The manufacturer part number is 2278-20NST.
- What is the HS code for 2278-20NST?
- The customs tariff (HS) code for 2278-20NST is 9025.19.
- Who manufactures 2278-20NST?
- 2278-20NST is a Milwaukee product in the Tools range.
- Is a datasheet available for 2278-20NST?
- Yes — the 2278-20NST datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 2278-20NST?
- The minimum order quantity is 1.
- Is 2278-20NST available?
- Yes — 2278-20NST is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
