IP 212-50M

IP 212-50M stand-alone electro optic smoke detector detects fire accompanied with small concentration of smoke in different buildings and facilities enclosed rooms by recording optical emission reflected from smoke particles and generating loud audible signals alerts.
Detector sensitivity 0.05-0.2 dB/m
Supply voltage (from Krona power component) 9 V
Current consumption in standby mode no more than 30 μA
Voltage level at which the detector periodically generates audible signal "Battery discharge" from 7 to 5.9V
Activation delay no more than 6 sec
Allowable level of background luminance exposure 12000 lx
Allowable airflow rate up to 10 m/s
Loudness level of "Fire" signal at 1 m distance from the detector during four minutes 85 dB
Noise resistance (as per GOST R 53325): - nanosecond voltage pulses - electrostatic discharge - electromagnetic field 3 degree
Protection against electrical current injury 3 class
Ingress protection rating IP 40
Overall dimensions Ø9550 mm
Dimensions ø93×50 mm
Weight 200 g
Max relative humidity at +40 90%
Operating temperature range from -10 to +55
Average service life at least 10 years

The detector does not respond to temperature, humidity changes and to the presence of flame and natural or artificial light. Detector consists of a sensor and mounting bar. Sensor represents plastic housing with built-in optoelectronic system and board with radioelements. The detachable connection between the sensor and the mounting bar provides easy installation, mounting, and maintenance of the detector.

Detector provides the following:

  • detector stand-by mode restoration 20 minutes past smoke removal;
  • easy testing using TEST button;
  • due to computer-aided results processing, decision on Fire signal generation may be made with maximum precision and considerably decreased likelihood for false alarm;
  • optimal overall dimensions (Ø95 50 mm) and modern housing design;
  • wide range of operation temperature from minus 10 to plus 55;
  • detector power supply is realized through Krona power component (within the scope of supply) of nominal voltage of 9V.

Depending on the state, IP 212-50 fire detector activates various indicators:

Alarming mode




Standby Mode

Single flash with a repeat period of (5 1) s

Fire mode

Blinking with frequency of (2 0.2) Hz

Constant tone-modulated audible signal

Battery discharge mode (at voltage of 7-5.9V)

Short-term audible signal with 60 s repeat period

  Area to be monitored by one detector, distance between detectors as well as between a detector and a wall shall be as per Table 2:


Detector installation
height, m

Area monitored by
one detector, m

Maximum distance, m

between detectors


Up to 3,5

Up to 85



Over 3.5 to 6.0

Up to 70



Over 6.0 to 10.0

Up to 65



Over 10.0 to 12.0

Up to 55



Up to eight detectors may be combined into a group in order to generate External alarm signal in case of activation at least one of group detectors:

  • open power compartment cover;
  • for detectors No. 2. No.8, set jumper in Slave position. For the last detector, connect terminal resistor 5.1 kOhm (in the scope of supply; one per loop circuit) to terminal block;
  • for detector No. 1: set jumper in Master position.
  • using two-wire line, connect all the detectors taking into account the polarity (branching is not allowed).
  • install power element.

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