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AcuRite 00887/0089ISBCA Digital Thermometer User Guide
Quick start guide for the AcuRite 00887/0089ISBCA digital thermometer, covering battery installation, clock setup, temperature and humidity monitoring, and troubleshooting.
Table of contents
Quick guide from the manual
This document provides essential instructions for the setup and operation of the AcuRite 00887/0089ISBCA digital thermometer. Key tasks include installing the battery, setting the clock, and understanding how to view and reset temperature and humidity records.
Battery installation
To power the device, slide the battery door open on the back of the unit and insert one AAA alkaline battery, ensuring correct polarity (+/-) as indicated in the compartment.
Setting the clock
- Slide the TIME SET LOCK switch on the front of the unit to the TIME SET position.
- Press the HR button to set the correct hour.
- Press the MIN button to set the correct minute.
- Slide the switch back to the LOCK position.
Operation and settings
- Display switching: Press the TEMP/CLOCK button to toggle between the clock and indoor thermometer display.
- Temperature units: Use the slide switch on the back of the unit to select between Fahrenheit (°F) and Celsius (°C).
- Back-light: Press the LIGHT button to illuminate the display. Note that frequent use will reduce battery life.
- Min/Max records: Press the TEMP MIN/MAX or HUMIDITY MIN/MAX buttons once to view maximum recorded values, and twice to view minimum recorded values. Press the CLEAR button to reset these records.
Safety and maintenance
The device will display LO or HI if temperature or humidity levels exceed the specified ranges. Always dispose of old batteries in an environmentally safe manner. Do not mix old and new batteries, do not use rechargeable batteries, and do not incinerate batteries as they may leak or explode.
Technical specifications
- Indoor temperature range: -4°F to 122°F (-20°C to 50°C)
- Outdoor temperature range: -58°F to 158°F (-50°C to 70°C)
- Humidity range: 20% to 90%
Manufacturer information
AcuRite
Practical help
Common problems
Display shows LO or HI
The temperature or humidity has reached a level outside the device's measurable range.
Back-light not working or dim
Frequent use of the back-light shortens battery life; replace the AAA battery.
Before use
- Ensure you have one fresh AAA alkaline battery.
- Check the battery compartment for correct polarity (+/-) alignment.
- Set the temperature unit switch on the back to your preference (°F or °C).
- Ensure the TIME SET LOCK switch is in the LOCK position after setting the time.
Specs in practice
- Indoor Temperature Range
- -20°C to 50°C (-4°F to 122°F)
- Outdoor Temperature Range
- -50°C to 70°C (-58°F to 158°F)
- Humidity Range
- 20% to 90%
Model compatibility
- Use only AAA alkaline batteries.
- Do not use rechargeable batteries.
- Do not mix old and new batteries or different battery types.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.