Lock

Features

  • Handedness - Just for looks, people prefer Left or Right locks so that they can be installed without being turned upside down.
  • Inside vs outside opening: The lock tooth is curved on one side so as to slide in when pushed against an obstacle from a particular direction. This can be changed upon disassembly.
  • Deadlocking: Explained here. Can ensure that the door does not lock or unlock automatically.

Electronic locks

  • Popular brands India 2020: Alba, CP plus (Indian HQ and manufacturing, good reach, comes with 5 keys). Navkar OEM - has deadlocking fefature unlike CP Plus (YT, NS).
  • Principle: when power is supplied, lock is unlocked.
  • Installation video
  • Power: 12V DC. Power: higher than 3A or 12W. So, need a power adaptor.
  • Keeping the power supply on for longer than 8 seconds could damage the lock (CP Plus warning).

Wifi controllers

Tinxy

  • Indian company
  • Demo here.
  • Wiring diagram here. Instruction manual here.
    • 240 V input at P1. P2 - connection to the lock. P3 - switch or other device (like keypad). P4 - door close sensor.
  • Controller Dimensions: 14cm, 7.5cm, 3.7cm
  • Firmware update can be done via the App. Doesn’t happen automatically according ot customer support.

Usage history

  • 4 Wifi controllers + electronic locks purchased (18 Jan 2021).
  • Installation of the electronic lock was tricky for the carpenter - lost one lock and needed to repay and reorder (7 Apr 2021). Customer support was ok.

2A Fuse replacement 2022:

  • L1 door lock controller stopped working on 11 Apr 2022. Green LED went off.
    • Customer support initially idiotically asked me to swap phase and neutral of AC input - obviously fruitless. Warranty expired.
  • L0 and L2 door lock controller stopped working on 19 Apr 2022. Green LED went off. Later L3 controller went bust as well.
  • 2A Fuse was replaced on 3 controllers.

Alternates

Authentication devices

RFID + keypad + bell

  • Wiring described in this vid. One set for input power - 12V. One set for open switch. One for door bell. One for locking. A reset pin pair (to restore security passwords). Often comes with a power supply box which supplies 12V output and accepts door unlocking control signals to operate the lock for x seconds (adjustible).

Indian sellers

Attacks

  • For low RW security id tags: Key fob cloning is very easy. Shown in this vid.
  • One can open the authentication box and short the unlock wires.

Spare keys

  • Europa locks India - can order spare keys online. Must send key photos, id proof, address proof etc..
  • Godrej - enquired.
  • Ebco india: Email picture of the key series to help@ebco.in.

Combination locks

  • Aka number locks
  • Ebco.in sells them online.