ACU-RITE 00411 - User Manual

Questions and Answers

A
Allen HillAug 6, 2025
What to do if the ACU-RITE Thermometer outdoor temperature is flashing or showing dashes?
- C
  Courtney HansenAug 6, 2025
  If the outdoor temperature is flashing or showing dashes on your ACU-RITE Thermometer, it might be due to wireless interference. Try bringing both the sensor and display unit indoors and removing at least one battery from each. Then, reinstall the battery in the outdoor sensor, followed by reinstalling the battery in the display unit. Allow the units to sit within a couple of feet of each other for about 20 minutes to establish a strong connection.
D
Donald MullinsAug 11, 2025
What to do if ACU-RITE 00411 Thermometer display screen is not working?
- A
  Aaron ThomasAug 11, 2025
  If the display screen on your ACU-RITE Thermometer is not working, first check that the batteries are installed correctly. If they are, the batteries may need to be replaced.
M
Michael PerryAug 18, 2025
What to do if my ACU-RITE 00411 has no outdoor sensor reception?
- S
  Steven Wilson DDSAug 18, 2025
  If your ACU-RITE Thermometer isn't receiving the outdoor sensor signal (no bars), try these steps: First, relocate the display unit and/or the outdoor sensor, ensuring they are within 165 ft (50 m) of each other. Second, ensure both units are at least 3 feet (.9 m) away from electronics like TVs, microwaves, and computers that could interfere with wireless communication. Third, use standard alkaline batteries (or lithium batteries in the sensor when the temperature is below -4ºF/-20ºC), avoiding heavy-duty or rechargeable batteries. Finally, allow up to 20 minutes for the display unit and sensor to synchronize after replacing the batteries.
V
Valerie SellersAug 25, 2025
Why is the outdoor temperature flashing or showing dashes on my ACU-RITE 00411?
- L
  Leslie WilliamsAug 25, 2025
  If the outdoor temperature on your ACU-RITE Thermometer is flashing or showing dashes, it may be due to wireless interference. To resolve this, bring both the sensor and display unit indoors and remove at least one battery from each. Then, reinstall the battery in the outdoor sensor, followed by reinstalling the battery in the display unit. Allow the units to sit within a couple of feet of each other for about 20 minutes to establish a strong connection.
W
William FryeAug 29, 2025
How to fix no outdoor sensor reception on ACU-RITE Thermometer T111I with no bars?
- W
  William McdonaldAug 29, 2025
  If your ACU-RITE Thermometer T111I shows no bars and isn't receiving the outdoor sensor signal, try these steps: Relocate the display unit and/or the outdoor sensor, ensuring they are within 165 ft (50 m) of each other. Also, make sure both units are at least 3 feet (.9 m) away from electronics like TVs, microwaves, and computers that could cause interference. Use standard alkaline batteries (or lithium batteries in the sensor when the temperature is below -4ºF/-20ºC), avoiding heavy-duty or rechargeable batteries. After replacing batteries, allow up to 20 minutes for the display unit and sensor to synchronize.

Summary

Product Setup and Initial Use

Unpacking and Package Contents

Instructions for unboxing the wireless thermometer and verifying all included components.

Product Registration

Guidance on registering the product online to activate warranty protection and ensure support.

Features and Benefits

An overview of the key features and advantages of the AcuRite Wireless Thermometer.

Detailed Setup Procedures

Step-by-step instructions for setting up the display unit and outdoor sensor, including battery installation and unit selection.

Optimal Placement Guidelines

Recommendations for positioning the display unit and outdoor sensor for accurate readings and reliable wireless communication.

Using High;Low Records

How to view and reset the recorded minimum and maximum temperature and humidity values.

Troubleshooting and Maintenance

Common Troubleshooting Solutions

Solutions for common problems such as sensor reception, temperature display errors, and unit functionality.

Unit Care and Cleaning

Recommended methods for cleaning and maintaining the display unit and outdoor sensor.

Technical Specifications and Compliance

Product Specifications

Key technical details including temperature ranges, humidity, wireless range, and power requirements.

FCC Compliance Information

Information regarding FCC rules and industry standards for the device's operation.

Support and Warranty

Customer Support Channels

Contact details and resources for getting help with the product.

Limited One Year Warranty

Details the product's warranty coverage, terms, and conditions.

Summary

Product Setup and Initial Use

Unpacking and Package Contents

Instructions for unboxing the wireless thermometer and verifying all included components.

Product Registration

Guidance on registering the product online to activate warranty protection and ensure support.

Features and Benefits

An overview of the key features and advantages of the AcuRite Wireless Thermometer.

Detailed Setup Procedures

Step-by-step instructions for setting up the display unit and outdoor sensor, including battery installation and unit selection.

Optimal Placement Guidelines

Recommendations for positioning the display unit and outdoor sensor for accurate readings and reliable wireless communication.

Using High;Low Records

How to view and reset the recorded minimum and maximum temperature and humidity values.

Troubleshooting and Maintenance

Common Troubleshooting Solutions

Solutions for common problems such as sensor reception, temperature display errors, and unit functionality.

Unit Care and Cleaning

Recommended methods for cleaning and maintaining the display unit and outdoor sensor.

Technical Specifications and Compliance

Product Specifications

Key technical details including temperature ranges, humidity, wireless range, and power requirements.

FCC Compliance Information

Information regarding FCC rules and industry standards for the device's operation.

Support and Warranty

Customer Support Channels

Contact details and resources for getting help with the product.

Limited One Year Warranty

Details the product's warranty coverage, terms, and conditions.

This document is an instruction manual for the AcuRite Wireless Thermometer, models 00411/00609SBDIA/00611A3.

Function Description:

The AcuRite Wireless Thermometer is designed to provide accurate indoor and outdoor temperature and humidity readings. It consists of a display unit and a wireless outdoor sensor. The display unit shows current outdoor and indoor temperatures, outdoor and indoor humidity, and records of high and low temperatures and humidity. It also indicates the trend of temperature and humidity (rising, falling, or steady). The outdoor sensor wirelessly transmits data to the display unit.

Important Technical Specifications:

Temperature Range:
- Outdoor: -40°F to 158°F (-40°C to 70°C)
- Indoor: 32°F to 122°F (0°C to 50°C)
Humidity Range: 1% to 99% RH
Wireless Range: 165 ft (50 m), dependent on home construction materials.
Wireless Frequency: 433 MHz
Power:
- Display: 2 x AA alkaline batteries
- Sensor: 2 x AA alkaline or lithium batteries (lithium recommended for temperatures below -4°F / -20°C)
Data Reporting:
- Outdoor data: 31-second updates
- Indoor data: 60-second updates

Usage Features:

Display Unit:

Current Outdoor Temperature: Displays the current outdoor temperature with an arrow icon indicating if the temperature is trending up, down, or steady.
High Outdoor Temperature Record: Shows the highest outdoor temperature recorded since the last reset.
Low Outdoor Temperature Record: Shows the lowest outdoor temperature recorded since the last reset.
High Outdoor Humidity Record: Shows the highest outdoor humidity recorded since the last reset.
Current Outdoor Humidity: Displays the current outdoor humidity with an arrow icon indicating if the humidity is trending up, down, or steady.
Low Outdoor Humidity Record: Shows the lowest outdoor humidity recorded since the last reset.
Current Indoor Temperature: Displays the current indoor temperature with an arrow icon indicating if the temperature is trending up, down, or steady.
Low Indoor Temperature and Humidity Record: Shows the lowest indoor temperature and humidity recorded since the last reset.
Current Indoor Humidity: Displays the current indoor humidity with an arrow icon indicating if the humidity is trending up, down, or steady.
High Indoor Temperature and Humidity Record: Shows the highest indoor temperature and humidity recorded since the last reset.
Display Low Battery Indicator: Alerts when the display unit batteries are low.
Outdoor Sensor Low Battery Indicator: Alerts when the outdoor sensor batteries are low.
Outdoor Sensor Signal Strength: Indicates the strength of the wireless signal from the outdoor sensor.

Outdoor Sensor:

Integrated Hanger: Allows for easy placement of the sensor.
Wireless Signal Indicator: Flashes when data is being sent to the display unit.
Battery Compartment Cover: Protects the battery compartment.

Setup and Placement:

Main Unit Detachable Stand: The display unit comes with a detachable stand for tabletop placement and is also wall-mountable.
Battery Installation: Requires 2 x AA batteries for both the display unit and the outdoor sensor. Alkaline batteries are recommended for optimal performance, with lithium batteries suggested for the outdoor sensor in temperatures below -4°F (-20°C).
Fahrenheit/Celsius Selection: Users can select between degrees Fahrenheit (°F) or Celsius (°C) by pressing the "°F/°C" button on the back of the display.
Placement Guidelines for Maximum Accuracy:
- Place the display unit in a dry area, free of dirt and dust.
- The outdoor sensor should be placed outside, protected from direct weather elements, using its integrated hanger or string.
- Optimal outdoor sensor placement is 4 to 8 feet above the ground, in permanent shade, with plenty of fresh air circulation.
- Ensure both units are out of direct sunlight and away from heat sources or vents.
- Maintain a distance of at least 3 feet (0.9 m) from electronic devices to prevent wireless interference.
- The display unit and outdoor sensor must be within 165 ft (50 m) of each other.
- Avoid large metallic items, thick walls, metal surfaces, or other objects that may limit wireless communication.
Synchronization: The sensor and display unit will synchronize automatically after setup, which may take a few minutes.

High/Low Records Usage:

Viewing Records: Press the "↓" button to view low temperature records and the "↑" button to view high temperature records.
Resetting Records: Press and HOLD the "↓" button while viewing low records to clear them. Press and HOLD the "↑" button while viewing high records to clear them. Records reset when batteries are changed or manually reset.

Maintenance Features:

Display Unit Care: Clean with a soft, damp cloth. Avoid caustic cleaners or abrasives. Keep free of dust, dirt, and moisture. Regularly clean ventilation ports with a gentle puff of air.
Outdoor Sensor Care: Clean with a soft, damp cloth. Avoid caustic cleaners or abrasives.
Battery Safety: Clean contacts, remove batteries from unused equipment, follow polarity diagrams, promptly remove dead batteries, dispose of properly, do not incinerate, do not mix old/new or different types, do not use rechargeable batteries, and do not short-circuit terminals.

Troubleshooting:

No Outdoor Sensor Reception: Relocate units within 165 ft (50m), ensure they are 3 ft (0.9m) away from electronics, and use recommended batteries. Synchronization may take up to 20 minutes after battery replacement.
Flashing Outdoor Temperature/Dashes: Indicates wireless interference. Bring both units indoors, remove and reinstall batteries in both, then place them within a couple of feet for about 20 minutes to establish a strong connection.
Inaccurate Temperature: Ensure units are out of direct sunlight and away from heat sources/vents.
Display Screen Not Working: Check battery installation and replace if necessary.

Customer Support:

AcuRite offers customer support via phone (877-221-1252) and online (www.AcuRite.com) for assistance, including installation videos, instruction manuals, product registration, support forums, replacement parts, and feedback submission. Product registration is recommended to receive a 1-year warranty.

Warranty:

Chaney Instrument Co. provides a one-year limited warranty from the date of purchase, covering defects in material and workmanship under proper installation and operation. Remedy is limited to repair or replacement. The warranty excludes normal wear and tear, damage from acts of nature, tampering, abuse, improper installation, shipping damage, or repairs by unauthorized personnel. The warranty is expressly in lieu of all other warranties, express or implied, including merchantability and fitness for a particular purpose. Chaney disclaims liability for special, consequential, or incidental damages.