Product description
Soldering kit with a phone-controlled electronic combination lock. The E-Lock detects DTMF tones via the built-in microphone when keys on the phone keypad are pressed. When the correct code is entered, the 1 A relay is activated. The relay can be connected to a solenoid or another device to control a door lock.
Specifications:
- Powered by: 9 V battery (not included)
- Dimensions: 15.5 x 3.5 cm
- Difficulty level: Easy to intermediate
- Based on the DTMF decoder: HT9170D
