Electrical Characteristics
Installation:	PIN
Dimensions (mm):	∮28.2*19.5
Voltage (V):	9VDC
Max Current(mA):	20mA
Control Voltage(V):	6~11VDC
Frequency (Hz):	2800±100
Tone:	B2_Pulse
SPL (dB):	80@30CM

Others
Operation Temp.(℃):	-20~70