WSAA108

Soldering kit, DIY, water alarm, detachable water sensor, detection alarm, 9 V battery

WSAA120

Infrared light barrier intrusion alarm soldering kit with buzzer, illustrated manual included and suitable for tech or STEM activities

WSAA189

Soldering kit, DIY, 12 V car battery monitor, battery status check, LED indicator.

WSAA2543

Soldering kit, DIY, electronic transistor ignition for cars

WSAA6400

Soldering kit, DIY, code lock, alarm, secure, for indoor and outdoor use, self-adjustable code