An HVAC/R-focused cordless infrared thermometer that adds humidity measurement. Milwaukee lists a 41:1 distance-to-spot ratio and the same broad -22 to 1472 degrees F range.
Does the 2277-20 include a battery or charger?
No. It is sold as a bare tool with no battery or charger included.
How does it differ from the standard 2276-20?
Milwaukee lists humidity measurement on the 2277-20, making it more HVAC/R-specific.
What temperature range does it cover?
Milwaukee lists the same -22 to 1472 degrees F operating range.
# Milwaukee Laser TEMP-GUN M12 Cordless Lithium-Ion Thermometer for HVAC/R **Model:** `2277-20` **Brand:** Milwaukee **Category:** Laser Level > An HVAC/R-focused cordless infrared thermometer that adds humidity measurement. Milwaukee lists a 41:1 distance-to-spot ratio and the same broad -22 to 1472 degrees F range. ## Specifications | Attribute | Value | |---|---| | Product Type | Laser / Thermometer | | Voltage (V) | 12 | | Cordless / Corded | Cordless | | Power Source | Battery | | Tool Only | Yes | | Batteries Included | 0 | | Charger Included | No | | Piece Count | 1 | | Battery Platform | M12 | | Display Type | High Contrast White on Black | | Switch Type | Trigger | | Temperature Range F | -22 to 1472 | | Basic Accuracy Percent | 1.5 | | Distance To Spot Ratio | 41:1 | | Response Time | <500ms | | Emissivity | Adjustable 0.10 to 1.00 | | Data Storage | Yes | | Hi Lo Alarm | Yes | | Humidity Measurement | Yes | | Warranty | 2-year limited (tool) | ## What's Included - (1) Laser TEMP-GUN M12 Cordless Lithium-Ion Thermometer for HVAC/R (2277-20) Source: https://www.jaspecs.com/milwaukee/laser-level/2277-20-laser-temp-gun-m12-cordless-lithium-ion-thermometer-for-hvac/