Instalarm instruments pvt ltd manufactures alarm annunciators a key component of electrical/electronic installation. It manufactures micro-processor based annunciation systems which arecompact, space saving and reliable with super bright red led display complete with universal switch mode power supply module suitable for 90 to 270 v ac or dc incoming supply. It also makes intrinsically safe annunciators, the design tested and certified by cmrs, dhanbad. Microprocessor-based annunciators can be supplied with pc compatibility through rs 232/rs 485 serial communication port. These annunciators can be linked with pc/plc with entire display on monitor as an option.