S86842 Atomic Alarm Clock with Bluetooth Speaker and Forecast
S86842 - Experience a better start to your day
S86842 and sensor
S86842 Atomic Alarm Clock with Bluetooth Speaker and Forecast
S86842 back
S86842 Alarm

S86842 Atomic Alarm Clock with Bluetooth Speaker and Forecast

SKU: S86842

Regular price$109.99

With an impressive array of capabilities, the S86842 Atomic Alarm Clock with Bluetooth Speaker and Forecast is both unique and practical. It features an attractive LCD, color-changing LED base light, dual crescendo alarms with custom scheduling and sound options, precise atomic time and date, dynamic forecast icons, indoor and outdoor temp and humidity, high-quality Bluetooth speaker, USB charging port, and even more to help improve your daily routine. Experience a better start to your day with this incredible featured-packed alarm clock.

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  • Atomic Time & Date (12-Hour Format)
  • Animated Seconds Indicator
  • Calendar with Full Weekday & Date
  • Custom Dual Crescendo Time Alarms
    • Daily, Monday - Friday, & Weekend Only Options
    • Birds, Music, Futuristic, & Beep Sound Options
    • Sounds Increase in Volume Over a 5 Minute Period
    • Easy Access ON/OFF Switches and Indicators
  • 10-Minute Snooze Function
  • 1 Amp USB Charging Port


  • Bluetooth 2.1 Operation
  • Wirelessly Play Audio from Mobile Devices
  • Integrated 3.5mm Audio Input Jack (AUX Port)
  • Volume Level Control (1-10)


  • Dynamic Forecast Icons
  • Forecast Tendency Indicator
  • Included Outdoor Temp & Humidity Sensor
  • Outdoor Temperature (°F or °C)
  • Outdoor Humidity (%RH)
  • Daily High & Low Records (Temp/Humidity)
  • Indoor Temperature (°F or °C)
  • Indoor Humidity (%RH)
  • Daily High & Low Records (Temp/Humidity)



    • Attractive Color Display
    • Adjustable LCD Brightness (HIGH, LOW, OFF)
    • Custom LED Base Light
      • Forecast - Color Adjusts with Forecast Predictions
      • Loop - Cycle Through All Colors
      • Manual - Custom Single-Color Choice (Red, Yellow, Green, Cyan, Blue, Purple, White)
    • Atomic Time, Sensor Signal Strength, and Low Battery Icons
    • Quick Setup with Easy-to-Use Controls
    • Premium Case – Designed for durability and long-term use
    • Button Functions Conveniently Printed on the Back


    • Printed Setup Guide Included
    • Full Instructional Video
    • Access to U.S. Based Tech Support
    • 1-Year Warranty
    • 30-Day Money Back Guarantee on LaCrosseTechnology.com Purchases


ALARM CLOCK SPECS (S86842 | S87078)

  • Indoor Temp Range: 32°F to 122°F (0°C to 50°C)
  • Indoor Humidity Range: 10 to 99% RH
  • LCD Brightness: HIGH, LOW, OFF
  • Base Light Brightness: HIGH, LOW, OFF
  • USB Charging Output: 1 Amp
  • Bluetooth Range: 32 Feet (10 Meters) In Open Air
  • Bluetooth Protocol: A2DP, AVRCP, HFP, HSP
  • Bluetooth Frequency: 2.400GHz - 2.480GHz
  • Power Requirement: 5V AC Adapter (Included & Required)
  • Battery Backup: 3 “AAA” Alkaline Batteries (Not Included)
  • Battery Life: 12+ Months with Power Cord Use
  • Clock Dimensions: 4.61 in L x 2.85 in W x 8.33 in H (11.71cm L x 7.24cm W x 21.16cm H)


    • Outdoor Temp Range: -40°F to 140°F (-40°C to 60°C)
    • Outdoor Humidity Range: 10 to 99% RH
    • Transmission Rage: 330 Feet (100 Meters) In Open Air
    • Transmission Frequency: 433MHz
    • Update Interval: ~Every 51 Seconds
    • Power Requirements: 2 “AA” Alkaline Batteries (Not Included)
    • Battery Life: 24+ Months (May Vary Based on Climate)
    • Sensor Dimensions: 1.58 in L x 0.83 in W x 5.08 in H (3.99cm L x 2.10cm W x 12.99cm H)



La Crosse Technology, Ltd. provides, to the original purchaser, a 1-year limited time warranty on this product, relating to manufacturing defects in materials & workmanship.  In accordance with the Song-Beverly Act, in the state of California, the warranty on this item becomes effective on the date of delivery.  The item will be either repaired or replaced at La Crosse Technology's discretion.

Click Here for full warranty details

Use the registration form below to register ownership of your product only.  If you have a question about use of the unit, please click on the support tab next to this one to see available support material or submit a ticket.


Welcome to Tech Talk, a video series designed to help you find the information you need to know quickly and conveniently. Use the red play-head under the video to move to the specific time listed below.

Chapter 1) Introduction - 0:27

Chapter 2) Parts & Accessories - 3:34

Chapter 3) Initial Setup - 4:25

Chapter 4) LCD Layout & Icon Descriptions - 6:28

Chapter 5) Bluetooth 2.1 Operation - 9:07

Chapter 6) Settings - 11:32

Chapter 7) Setting The Time Alarms - 15:42

Chapter 8) The Colored LED Rim - 19:23

Chapter 9) Forecast Information - 21:43

Chapter 10) USB Charging Port & Backlight Adjustment - 24:11

Chapter 11) Extras - 25:42

Chapter 12) Help Us, Help You - 29:53


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