The replacement batteries for the Wireless Sensor Hubs (WiSH) are Lithium. Lithium batteries are used in many portable consumer electronic devices and are widely used in industry. Although lithium cells will provide much longer life, please remember to change your battery at least every 1-2 years (in normal use) to insure optimum functionality.

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Includes:

- 2 Lithium Batteries


Compatible Products: Room Alert 26W.

Compatible Sensors: WiSH Sensors Hub (Battery).