Comparison Between Detectors
Unit	CDB101	CDB103	CDB105	CDB203	CDB205	CDB301	CDB305
Principle
Heterodyne	x	x	x			x	x
Frequency Division				x	x	x	x
Time Expansion
Mono / Stereo	Stereo	Stereo	Mono	Mono	Mono	Mono	Mono
Scale/Display
Printed Scale			x				x
4 Digit LED Display / LCD	x	x				x
Features
3.5mm Headphone Jack	x	x	x	x	x	x	x
3.5mm Line-out Jack	x	x		x		x
Built in Speaker		x	x		x		x
Technical Specifications
Electret Microphones	2	2	1	1	1	2	1
Frequency Range	15-130 kHz	15-130 kHz	18-120 kHz	18-120 kHz	18-120 kHz	18-120 kHz	18-120 kHz
Cut off Bandwidth	10 kHz	10 kHz	10 kHz	n/a	n/a	10 kHz	10 kHz
Division Factor	n/a	n/a	n/a	10	10	10	10
FD - Amplitude Retaining	n/a	n/a	n/a	x		x
Power Supply Voltage	9v	9v	9v	9v	9v	9v	9v
Power Consumption	38-43mA	40-45mA	10-20mA	10-20mA	10-20mA	35-40mA	15-20mA
LED Torch			x	x	x
Additional Consumption LED			25mA	25mA	25mA	n/a	n/a
Dimensions
Height (mm)	170	170	140	170	140	170	140
Width (mm)	75	75	64	75	64	75	64
Depth (mm)	40	40	31	35	31	35	31
Weight (g)	220	220	120	160	120	220	140
If you have any further technical queries on any of these Ciel units, please contact their helpline using the following
email link.
Ciel Technical Information