Household analyzer of air contamination, dosimeter, alcotester "Strazh" AQM-22 This device place in premise and is intended for:

• round-the-clock estimation of degree of muddiness of air harmful and explosive matters with the two-tier signaling, informing about the degree of contamination hazard;
• round-the-clock measuring of radiation background with signaling about exceeding of threshold level;
• estimations of intoxication degree (concentrations of alcohol in blood) by measuring of concentration of steams of alcohol in an expirate.

Additionally the functions of clock, calendar and alarm clock are realized in a device, and also there is power supply from computer (through an USB).

Control of quality of air takes place as follows: the signal from sensor is processed a built-in microcontroller and given out on a display as the combined index of muddiness of air, shown in relative units with a turn-down from 0 to 100 units. Thus testimonies of device are in 100 units correspond to ideally clean air from point of device. Testimonies below 50 units specify on the possible exceeding in mid air maximum to the possible concentration (PDK) for one or a few harmful admixtures. Signaling of 1th level is thus included (irregular voice signal). Turn on of 2th level of signaling (continuous voice signal) takes place at the decline of testimonies of device to the level of 15 units and below, that specifies on the threat of poisoning the harmful matters contained in surrounding air.

Control of radiation background performed by measuring by the butt-end counter of Geyger-Myuller of total exposion dose rate (EDR) from alpha-, beta- and gamma-emitting nuclides (including radon and it daughters), being in surrounding air, objects etc. A measuring result shows in mkR/h, at exceeding of threshold the voice signaling is switched on.

Technical parameters:

- measuring range of air quality: from 0 to 100 relative units;
- measuring range of equivalent dose rate: from 0 to 999 mkR/h;
- period of renewal ("alkotester" mode): up to 90 c (after every measuring);
- dimentions: 20 х 15 х 9 cm, weihgt: 300 g;
- average term of service: 8 years;
- power supply: 220 V (from network) or 5 V (from USB-interface);
- warranty: 18 month, producer: Russia.