Products
The production of “Lesi” firm includes: car alarms, alarms for TIR; immobilizers, home alarm systems, systems for GPS (Valcor GPS), dialers for home systems, SOT systems (Valcor SOT), modules with remote control (for garage doors and panic buttons), modules for electric glasses control, locking systems and many other, as well as all kind of non-standard electronics.

Quality
The alarm systems are separated in classes not according to the quality of workmanship, which is equally for all systems, but according to the security level, which they provide. Because of this reason in the moment we have 4 trade marks – “Crotal” and “Varan” for low security level, “Cerber” for middle security level and “Valcor” for the high level. The “Varan” and “Cerber” alarms systems are with standard random code. “Valcor” alarm systems are with random code, where the algorithm for generation of a new code is our author's development and each remote control has its unique algorithm. This makes the alarm's disarming in practice impossible. In 2005 year completely new models security systems from “Valcor” series come into production and sell. A new dynamic algorithm for changing the code is developed, which has bigger functional possibilities and keep its old price. The scheme decision of all models is consistent with the requirements for “stun gun” defense. The software possibilities of all models are huge and the cover all extras. Our firm is open for all kind of proposals.

Standards
All of our products are tested, have certificate for quality and fulfill all Bulgarian standards and they are compatible with international standard 1999/5/EU, annex IV.
Our products satisfy the following standards too:

EN 300220-1, 1997

ETS 300683, 1997

EN 60950

BNS EN 60335-1

BNS 12.2.006.0-80

as well as to all requirements of Instruction N 104.
All products are made of high qualitative materials. There is a strict incoming control for all elements. The ready production passes a sore outgoing control and continuously tests, which are comfortable with the international standards.

Technologies
The company, where the security systems are made, is our property and the cycle of production is completely close. All systems are machining and line production. They are based on the most contemporary technology – SMD, which guarantees their high quality.