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Technical specifications: The waveform is sinusoidal, rectangular (TTL) Frequency range from 2 Hz to 2 MHz Frequency setting error ±0.05% Frequency instability ±0.02% in 15 min Signal amplitude ±5 V at 600 ohm load ±10 V without load Limits for adjusting the output signal level from 1 mV to 3.75 V (scr) at a load of 600 ohms from 2 mV to 7.5 V (scz) without load Signal level unevenness ± 2% at frequencies from 20 Hz to 200 kHz relative to 1 kHz ± 5% at frequencies from 200 kHz to 2 MHz Harmonic coefficient ± 0.3% at frequencies from 2 to 20 Hz ± 0.2% at frequencies from 20 Hz to 100 kHz ±1% at frequencies from 100 kHz to 2 MHz Parameters of the rectangular (TTL) signal form log. "1" 3 2.4 V; log. "0" ≤ 0.4 V the duration of the front, the cutoff is not more than 100 ns Operating temperature range from minus 10 °C to + 40 °C Power supply ~230 V, 50 Hz; 10 V×A Dimensions; weight 210×71×255 mm; 2

Technical specifications: Frequency range of sinusoidal waveforms, 0.1 Hz - 17 MHz Frequency range of rectangular-shaped signals, 0.1 Hz - 1 MHz Frequency setting discreteness, ±(0.012 + 0.0001 f), f in Hz Frequency instability in 15 minutes, no more than ± 1•10-5 Smooth signal attenuation, 40 dB Stepwise signal attenuation, 20, 40, 60 dB

WB series baths can be used for sample evaporation, incubation, defrosting, conduction of chemical reactions. Temperature setting range, oС +35…+95 Temperature error, oС ±1.0 is protected from excess temperature RAINBOW TSR-150S F-C Hydraulic thermostat Supply voltage, V 230+-10% Current consumption 6.5A Power consumption, 1500 W Overall dimensions L x W x H, mm 550 x 300 x 190 Overall dimensions of the bath L x W x H, mm 460 x 300 x 140 Total / engine capacity, 19.1/14.3 l

Designed to measure electrical quantities (DC voltage and strength, AC voltage and strength, DC electrical resistance) during demonstration work in physics. The device performs the function of a demonstration multimeter. Technical specifications: Measurement of DC voltage from 0 to 100 V measurement error, not more than 1.0 % Measurement of AC voltage from 0 to 60 V measurement error, not more than 1.0% measurement of DC power from 0.01 to 200 measurement error, not more than 1.0 % Measurement of AC power from 0.01 to 200 mA measurement error, not more than 1.0 % Measurement of DC resistance from 1 ohm to 2 mOhm measurement error, no more than 1.0% power supply from the USB port of the computer power consumption, no more than 0.6 V × A weight, no more than 0.3 kg overall dimensions 172x25x77 mm

Transmission of units of absorbed dose, directed, individual dose equivalents and their beta radiation power as part of the working standard of absorbed dose (PD) and absorbed dose power (MPD) of beta radiation in a tissue equivalent substance. ▪ Use of closed radionuclide beta radiation sources 90Sr+90Y (BIS-50, 22 GBk), 85Kr (KAC.D3, 15 GBk) and 147Pm (BIP-50, 10 GBk) ▪ Formation of a reference field from sources by a mobile emitter unit using smoothing filters ▪ Source holders with shutter and protective screens ▪ Calibrated length rods and laser device for centering and digitizing ▪ A video surveillance system of readings ▪ The possibility of using an automated extrapolation chamber as part of the installation to reproduce the absorbed dose (absorbed dose rate) of beta radiation in the tissue ▪ Measurement of ionization currents from 1 fA when using an extrapolation chamber and a precision electrometer ▪ Software for installation operation, calibration and calculations ▪ An alarm and blocking system, control of photon radiation levels in the measurement room and operator room

Temperature setting range, oC +35…+95 Temperature error, oC ±1.0 is protected from excess temperature RAINBOW TSR-150S F-C Hydraulic thermostat Supply voltage, V 230+-10% Current consumption 3.3 A Power consumption, 750 W Overall dimensions L x W x H, mm 380 x 300 x 190 Overall dimensions of the bath L x W x H, mm 290 x 300 x 140 Total/ engine capacity, 12.0/9.0 l

Technical specifications: Voltage reproduction range Uk 200 mV 0.07 + 0.01 DC: from 50 MV to 600 V, Uk 2 V 0.05 + 0.005 sub-bands (Uk) 200 mV; 2; 20; 200; 600 V Uk 20 V 0.05 + 0.005 Basic error, ± (% of U + % of Uk): Uk 200 V 0.07 + 0.01 Uk 600 V 0.1 + 0.02 Voltage reproduction range UK 200 mV 0.2 + 0.05 AC: from 1 mV to 600 V, Uk 2; 20 V 0.15 + 0.02 sub-bands (Uk) 200 mV; 2; 20; 200; 600 V from 20 Hz to 20 kHz Basic error, ± (% of U + % of Uk): sv. 20 to 40 kHz 0.2 + 0.1 Uk 200 V; 600 V: from 40 Hz to 1 kHz 0.2 + 0.05 Power reproduction range Ik 200 Ma 0.1 + 0.02 DC: from 1 Ma to 5 A, Ik 2; 20; 200 mA 0.1 + 0.01 sub-bands (Ik) 200 Ma; 2; 20; 200 mA; 2; 5 A Ik 2 A; 5 A 0.1 + 0.02 Basic error, ± (% of I + % of Ic): AC power reproduction range: from 10 Ma to 5 A sub-bands (Ic) 200 Ma; 2; 20; 200 mA; 2; 5 A 0.15 + 0.05 Frequency range from 20 Hz to 1 kHz Basic error, ± (% of I + % of Ic): USB interface Operating temperature range from minus 10 °C to + 50 °C Dimensions; weight 420×342×184.5 mm; 10 kg

It is designed to study periodic signals in the frequency band 0-50 MHz and single electrical signals by registering them in digital memory with a sampling frequency of up to 50 MHz, observing their shape on a liquid crystal display (LCD), measuring the amplitude and time parameters of the signal under study. Technical specifications: Vertical deviation :2 Number of channels 0-50 MHz Rise time of PH ≤ 7.0 ns Input impedance 1 ± 0.03 mOhm, 25 pF Deviation coefficients of 5 mV/div - 2 V/div (step 1-2-5) The maximum input voltage is 100 V With a divider of 1:10 250 V The error of amplitude measurements is a≤ 2 % 5 mV...2 V; 10 ns...2 s/del. ADC: 2 channels, 50 MHz, 8 bits Equivalent sampling rate of 2.5 GHz Marker measurements U: ±2.5%, T: ±1.5% Pre-launch 8 screens, post-launch 150 screens Simultaneous observation of 2 signals Cursor measurements DU and DT Averaging modes and automatic DU and DT measurements LCD screen - 320x240 dots (monochrome) RS 232C interface Dimensions, weight 176x280x80 mm, 3 kg Power supply: +12V, 230B

Technical specifications: B5-78 (15 V, 3 A); B5-78/1 (30 V, 2 A); B5-78/2 (50 V, 1 A); B5-78/4 (20 V, 1.5 A); B5-78/6 (30 V, 4 A); B5-78/7 (50 B, 2.5 A) Voltage measurement error: ±0.3 V Current measurement error: ±(0.04–0.06) A Voltage instability when the load current changes 0.03% Instability of the current when the voltage changes at a load of 0.2% Voltage ripple 0.5–1 mV Current ripple 0.1% Power consumption 90 - 320 VA Two 3-digit indicators (voltage, current) Adjustments are rough, smooth Dimensions 115x185x360 mm Weight: 3.7 kg (B5-78, B5-78/1, B5-78/2) 3 kg (B5-78/4) 5.5 kg (B5-78/6, B5-78/7) Power supply ~220 V A

Designed for storing and transmitting the size of a resistance unit, as well as for checking and calibration of working resistance measures and complex resistance meters with a four-pair or five-clamp connection scheme in the frequency range from DC to 10 MHz. Description: Each of the resistance measures H2-2 is a precision resistor, in series and in parallel to which fitting resistors are connected, placed in an aluminum housing. The measures have a four-pole connection scheme. Four BNC type connectors (plugs) are located on the wall of the housing. The distance between the connectors is 22 mm. In measures of 100 kOhm and 1 mOhm, it is possible to adjust the value of the time constant of the measure using a tuning capacitor.

Technical specifications: 4-channel automated system for measuring the parameters of semiconductors (including test structures on plates) Study of the VAC of 2, 3, 4-pole Parameters of each channel Source/meter:- U: ±2 V, ±30 V (200 mA), ±120 V (±10 mA), I: ±20, ±200 nA, ±2, ±20, ±200 Ma, ±2, ±10mA, (±120V), ±20, ±200 mA (±30V) Source and meter error U, I ± 0.5% Sensitivity of the U/I meter: 10 mv/ 0.1 pA Graphs, tables, texts, databases RS-232C interface, computer software Dimensions, weight: 450x266x444 mm, 23 kg Power supply: ~220V, 120 VA