| Performance | 
                      
                      
                        | Channels | 
                        1  | 
                        1  | 
                         | 
                      
                      
                        | Frequency Range (-5 %) (x1, x10 Gain) | 
                        0.15 to 100000 Hz | 
                        0.15 to 100000 Hz | 
                        
																	[1]
																	 | 
                      
                      
                        | Frequency Range (-10 %) (x100 Gain) | 
                        0.15 to 50000 Hz | 
                        0.15 to 50000 Hz | 
                        
																	[2]
																	 | 
                      
                      
                        | Voltage Gain (±2 %) | 
                        1:1  | 
                        1:1  | 
                         | 
                      
                      
                        | Voltage Gain (±2 %) | 
                        1:10  | 
                        1:10  | 
                         | 
                      
                      
                        | Voltage Gain (±2 %) | 
                        1:100  | 
                        1:100  | 
                         | 
                      
                      
                        | Fault/Bias  Monitor/Meter (±1 V) (midscale) | 
                        13 VDC | 
                        13 VDC | 
                         | 
                      
                      
                        | Environmental | 
                      
                      
                        | Temperature Range | 
                        32 to 120 °F | 
                        0 to 50 °C | 
                         | 
                      
                      
                        | Electrical | 
                      
                      
                        | Excitation Voltage (To Sensor) | 
                        25 to 29 VDC | 
                        25 to 29 VDC | 
                        
																	[5]
																	 | 
                      
                      
                        | Constant Current Excitation (To Sensor) | 
                        2.0 to 3.2 mA | 
                        2.0 to 3.2 mA | 
                        
																	[6]
																	 | 
                      
                      
                        | Discharge Time Constant | 
                        >7 sec | 
                        >7 sec | 
                        
																	[4]
																	
																	[7]
																	 | 
                      
                      
                        | DC Offset (Maximum) | 
                        <30 mV | 
                        <30 mV | 
                        
																	[4]
																	 | 
                      
                      
                        | Spectral Noise (1 Hz) (Gain 1) | 
                        .25 µV/√Hz | 
                        -132 dB | 
                         | 
                      
                      
                        | Spectral Noise (10 Hz) (Gain 1) | 
                        .07 µV/√Hz | 
                        -143 dB | 
                         | 
                      
                      
                        | Spectral Noise (100 Hz) (Gain 1) | 
                        .05 µV/√Hz | 
                        -146 dB | 
                         | 
                      
                      
                        | Spectral Noise (1000 Hz) (Gain 1) | 
                        .04 µV/√Hz | 
                        -148 dB | 
                         | 
                      
                      
                        | Spectral Noise (10000 Hz) (Gain 1) | 
                        .03 µV/√Hz | 
                        -150 dB | 
                         | 
                      
                      
                        | Broadband Electrical Noise (1 to 10000 Hz) (Gain x1) | 
                        3.25 µV rms | 
                        -110 dB/rms | 
                         | 
                      
                      
                        | Spectral Noise (1 Hz) (Gain 10) | 
                        2.2 µV/√Hz | 
                        -113 dB | 
                         | 
                      
                      
                        | Spectral Noise (10 Hz) (Gain 10) | 
                        2.0 µV/√Hz | 
                        -114 dB | 
                         | 
                      
                      
                        | Spectral Noise (100 Hz) (Gain 10) | 
                        1.1 µV/√Hz | 
                        -119 dB | 
                         | 
                      
                      
                        | Spectral Noise (1000 Hz) (Gain 10) | 
                        .55 µV/√Hz | 
                        -125 dB | 
                         | 
                      
                      
                        | Spectral Noise (10000 Hz) (Gain 10) | 
                        .3 µV/√Hz | 
                        -130 dB | 
                         | 
                      
                      
                        | Broadband Electrical Noise (1 to 10000 Hz) (Gain x10) | 
                        49 µV/rms | 
                        -86 dB/rms | 
                         | 
                      
                      
                        | Spectral Noise (1 Hz) (Gain 100) | 
                        20 µV/√Hz | 
                        -94 dB | 
                         | 
                      
                      
                        | Spectral Noise (10 Hz) (Gain 100) | 
                        19 µV/√Hz | 
                        -94 dB | 
                         | 
                      
                      
                        | Spectral Noise (100 Hz) (Gain 100) | 
                        12 µV/√Hz | 
                        -98 dB | 
                         | 
                      
                      
                        | Spectral Noise (1000 Hz) (Gain 100) | 
                        5.5 µV/√Hz | 
                        -105 dB | 
                         | 
                      
                      
                        | Spectral Noise (10000 Hz) (Gain 100) | 
                        2 µV/√Hz | 
                        -114 dB | 
                         | 
                      
                      
                        | Broadband Electrical Noise (1 to 10000 Hz) (Gain x100) | 
                        569 µV/rms | 
                        -65 dB/rms | 
                         | 
                      
                      
                        | Power Required (Standard) | 
                        Internal Battery | 
                        Internal Battery | 
                         | 
                      
                      
                        | Internal Battery (Type) | 
                        9V | 
                        9V | 
                         | 
                      
                      
                        | Battery Life (Standard Alkaline) | 
                        50 hours | 
                        50 hours | 
                         | 
                      
                      
                        | Power Required (Alternate) | 
                        DC Power | 
                        DC Power | 
                         | 
                      
                      
                        | DC Power | 
                        15 mA | 
                        15 mA | 
                        
																	[3]
																	 | 
                      
                      
                        | Internal Battery (Quantity) | 
                        3 | 
                        3 | 
                         | 
                      
                      
                        | DC Power | 
                        18 to 30 VDC | 
                        18 to 30 VDC | 
                        
																	[3]
																	
																	[5]
																	 | 
                      
                      
                        | Physical | 
                      
                      
                        | Electrical Connector (Input, sensor) | 
                        BNC Jack | 
                        BNC Jack | 
                         | 
                      
                      
                        | Electrical Connector (Output, scope) | 
                        BNC Jack | 
                        BNC Jack | 
                         | 
                      
                      
                        | Electrical Connector (External Power, DC) | 
                        3.5 mm Diameter Miniature Jack | 
                        3.5 mm Diameter Miniature Jack | 
                         | 
                      
                      
                        | Electrical Connector (Battery Charger) | 
                        #722 Switchcraft Jack | 
                        #722 Switchcraft Jack | 
                         | 
                      
                      
                        | Size - Depth | 
                        2.4 in | 
                        6.1 cm | 
                         | 
                      
                      
                        | Size - Height | 
                        4.0 in | 
                        10 cm | 
                         | 
                      
                      
                        | Size - Width | 
                        2.9 in | 
                        7.4 cm | 
                         | 
                      
                      
                        | Weight (Including Batteries) | 
                        0.7 lb | 
                        0.3 kg | 
                         |