Environmental; Power Supply - Honeywell NK User Manual

6.2 Environmental

Temperature, storage
Temperature, operating

6.3 Power Supply

Battery type
Battery life
Note: To safeguard the circuitry, remove the batteries when not using the unit for a
long period of time.
Specifications
-28 °C to 65 °C [-20 °F to 150 °F]
0 °C to 55 °C [32 °F to 130 °F]
4 D cells (alkaline recommended)
250 hours (for alkaline)
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