Honeywell RTH7400D - Page 4

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Step 1. Prepare for Installation (Cont)
2. Check that you have everything required for the
installation:
• Two AA alkaline batteries
• No. 2 Phillips screwdriver and standard pocket
screwdriver
•Drill
• Drill bit—use 3/16 in. for drywall; use 7/32 in. for
plaster
• Level (optional)
• Hammer
•Pencil
• Electrical tape