Model M025

Measures electro magnetic emissions from power lines, computer monitors, television sets, video machinery and other electrical appliances. While the evidence of the carcinogenic effect of such electromagnetic emission is still inconclusive. The US.EPA recommends "product avoidance' to avoid excess exposure over long periods of time. Can be used to check compliance with the European Union's Electromagnetic Compatibility Directive IEC 801.1(EN 50081-1), (effective 12/31/1995). as well as sections relevant to specific types of laboratory, measurement control equipment IEC 201 (EN60201).built in single axis probe covers a range of 0.1 to 199.9 mGauss with an accuracy +/-4% +3 digits at 50/60Hz.

Powered by a single 9V battery which lasts approx. 200 hours.

Dimensions: 5-1/2" x 2-3/4" x 1"
Weight : 6 oz.

Model M045

Measures electro magnetic emissions from electrical power lines and power transmission, computer, HVAC, audio/video, and other electrical
appliances and equipment. While the evidence of the carcinogenic effect of such electromagnetic emissions is still inconclusive, prudent avoidance
is recommended to avoid excess exposure over long periods of time. Reads milli-Gauss and micro-Tesla on a large 1¼" high display. The display indicates when the object being measured is out of range as well as when the battery is low.

Features both standard and maximum hold.Powered by a standard 9V battery lasting approximately 100 hours. Comes with battery, instructions, and a soft carrying case.
Dimensions: 5¼” x 2¼” x 1¼" (130 x 56 x 38 mm).
Weight: 6oz (170g).

　

Unit of Measure	Range	Resolution	Accuracy
Milli-Gauss	0.1 ~ 2000mG	0.1 ~ 1	±2.5% + 3d @50/60Hz
Micro-Tesla	0.01 ~ 200 µT	0.01 ~ 0.1

Model M055

DC Gaussmeter

This digital gaussmeter is designed to measure magnets, solenoids,

and other strong sources of magnetic field.

The DC Magnetometer (gaussmeter) comes with a universal (axial/transverse) magnetic sensor and NIST - traceable certificate.

This magnetometer measures in three ranges, and indicates the sign (north or south). An offset control on the gaussmeter lets you adjust the "zero" field level by ± 10 gauss. The gaussmeter's output is monotonic to the last digit (± 0.005%), linear to ± 1 % at 20,000 gauss, and overall accuracy is ± 2 % from 30 to 110oF. The meter comes with a NIST- traceable calibration certificate.

The DC Magnetometer has a minimum resolution of 0.01 gauss, or about 1/50 of the Earth field on the minimum range of 200 gauss. The maximum range is 20,000 gauss. (In comparison, the strongest permanent magnet material has an internal flux density or gap-magnet field of about 14,000 gauss. Measurement of the face of a single magnet will yield about 1/2 as much, or 7000 gauss at maximum.)                                                                            

Available Options:

> DC/AC Measurement Switch (AC is pseudo - RMS +/-3%  45 Hz - 2000 Hz. Measures 0.1 - 10,000 gauss AC)

Model Milli083

DC  Milligauss Magnetometer

It has a resolution of 0.01 milligauss (1 nanotesla) and a range of +/-2000 milligauss (200 microteslas).

The display has an extra digit compared with most portable magnetometers. It has 4 ½ digits and it displays in two ranges: +/- 1999.9 and +/- 199.99 milligauss. Update is three times per second. Because the Earth's field is typically about 500 milligauss, three “offset” controls allow you to add or subtract up to 600 milligauss with precision of .01 milligauss. Therefore, the Earth's field can be subtracted out when required. If reading in the more sensitive 199.99 range, this field neutralization feature is often necessary, because the field is usually stronger than 200 milligauss.

    The wide dynamic range of the display (19,999 counts; both polarities), along with the large range of offset (+/- 600 milligauss) and high stability of the meter (+/- .01 milligauss), allow for stable detection of small changes in a large background field. On the higher sensitivity range, changes of .01 milligauss can be reproducibly measured in up to +/- 800 milligauss of background field. On the lower sensitivity range, absolute field of .1 milligauss can be measured in up to +/- 1999.9 milligauss of background field.

    The sensor is at the end of an eight-wire cable that is normally four feet long, but other custom lengths are available. The sensor is “axial”, which means it detects the component of the field that's in the same direction as the cable points (see photo). The meter reads negative when pointing toward the south pole of a magnet and positive toward north. The small active area of the sensor is in the center of the dark square.

    At fixed temperature, reproducibility is +/- 0.01 milligauss (1 nT) and the temperature coefficient of the offset is less than 0.01 milligauss/°C. The temperature coefficient for gain is less than .0015%/°C. As shipped, gain accuracy is +/-0.5% and the meter offset is +/- 0.5 milligauss with all offset knobs set at zero. All specifications are at temperatures 0 to 45°C. Size is approximately 18(high) x 9(wide) x 5(thick) cm. Weight, including battery is 325 grams. See photo for the external sensor dimensions.

       The meter comes with a NIST-traceable certificate of calibration, a replaceable common 9-volt alkaline battery (life about 25 hours), and a power plug for 10 - 18 VDC operation

Ordering code: R0809092 Radiation Monitor, from 50MHz to 3.5GHz

50 MHz to 3.5 GHz frequency range. For isotropic measurements of electromagnetic fields. Non-directional (isotropic ) measurement with three-channel measurement probe. High dynamic range due to three-channel digital results processing. Configurable alarm threshold and memory function. Easy to use High frequency (RF) electromagnetic wave field strength measurement. Mobil phone base station antenna radiation power density measurement. Wireless communication applications (CW , TDMA , GSM , DECT). Wireless LAN (Wi-Fi) detection, installation. Spy camera, wireless bug finder. Cellular/Cordless phone radiation safety level. Microwave oven leakage detection. Personal living environment EMF safety. RF power measurement for transmitters. 　 ELECTRICAL SPECIFICATIONS Sensor type Electric field (E) Frequency range 50MHz to 3.5 GHz Directional characteristic Isotropic, 3-dimensional Measurement range (CW signal>50MHz) 38mV/m to 11V/m Absolute error(@1V/m and 50MHz) ± 1.0dB Frequency response (taking into account typ. CAL factor) ± 1.0dB (50MHz to 1.9 GHz) , ±2.4dB(1.9GHz to 35GHz) Isotropy deviation Type. ±1.0dB 於 f>50 MHz Overload limit 4.2W/m2 (40 V/m) Temperature response(0 to 50 ℃) ± 1.5dB Note Unless otherwise stated, all specifications hold under the following assumptions: Sinusoidal signals; device in far-field of a source; probe head pointing toward source; ambient temperature +23 ℃±3 ℃;relative air humidity 25% to 75%. GENERAL SPECIFICATIONS Measurement method Digital , triaxial measurement Directional characteristic Isotropic, triaxial Measurement range selection One continuous range Display resolution 0.1mV/m, 0.1 μA/m, 0.01 μW/m2 Setting time Typically 1s ( 0 to 90% of meas. value) Display refresh rate Typically 400mS Display type LCD 4 digit Audible alarm Buzzer Measurement units mV/m , V/m , μA/m , mA/m , μW/m² , mW/m² , μW/cm² Measurement display value Instantaneous measured value, maximum value or average value since power-on. Measurement average time (in per-set steps) 4s to 15 minutes Measurement alarm function Adjustable threshold with ON/OFF Measurement calibration factor CAL Adjustable Manual data memory and read storage 99 sets ( only recall by meter ) Battery 9V Battery life >15 hours Accessory 9V battery, carrying case & manual