SUNDRIDGE OPTONIC G1 Illuminated Chain Drop Off Bite Indicator £7.99 - PicClick UK

OLD SCHOOL RETRO -DELLAREED OPTONIC SENSOR BITE ALARM – Vintage Fishing Tackle

Sundridge Optonic G1 Receiver Kit

3 X CUSTOM/PIMPED Optonic Bite Alarms, including rare blue volume

SUNDRIDGE DIGITAL OPTONIC Bite Alarm Set 3+1 With Receiver £38.99 - PicClick UK

2 x Optonic Basic Compact Hi Tone Old School Bite Alarms. Very Good Co – Vintage Carp Fishing Tackle

VINTAGE SOVIET SET of Fish Bite Signal Light Indicator Alarm

Sundridge Optonic G1 Illuminated Chain Drop Off Bite Indicator

Optonic Basic Compact LoTone Old School Bite Alarm. Excellent Conditio – Vintage Carp Fishing Tackle

Daiwa G1 Optonic Display