Since 1991 we have been supplying the world with test and measurement equipment. At Pico we realize that your choice of test accessories can be almost as important as your choice of test equipment. Here you can purchase a variety of test and measurement accessories quickly and securely online.

Active oscilloscope probes

This range includes high-voltage probes that extend the input range of your scope, and high-frequency probes that boost its input impedance for more accurate measurements.

All active probes require a power supply or batteries. Our battery-powered probes are supplied complete with batteries, while optional AC adaptors are available for the externally powered types. Read our application note: Choosing the right Pico Technology active differential probe.

For making differential measurements from millivolts to 1000 V CAT III also consider the PicoScope 4444 differential input oscilloscope

100 MHz 1400 V differential oscilloscope probe 100:1/1000:1

The TA042 is an active differential probe suitable for high common-mode voltage measurement applications up to ±1400 V  (DC + peak AC). It is capable of acquiring higher speed signals of up to 100 MHz.

This differential probe extends the functionality of standard single-ended input oscilloscopes to allow a safe and accurate method of making high-voltage differential measurements. Applications include making safe measurements in power circuit applications and acquisition of low speed balanced differential signals found in serial communications buses.

The TA042 is an active probe powered by either four AA batteries, included, or the PS008 power supply, available as an optional extra.

1400V active differential scope probe
£419
Title Language Issue Size Updated All products All languages All documents Status
TA042 100 MHz 1400 V Differential Probe User’s Guide English 1 476 KB Nov 07 2016 English open
Choosing the right Pico Technology active differential probe English 3 2 MB Nov 02 2018 English open

Accessories for the 100 MHz 1400 V differential oscilloscope probe 100:1/1000:1

Product Price Quantity
9 V AC power adaptor
PS008
£18
Battery pack for active differential probe
TA047
£56
Lemo power cable for Pico TA04x and TA05x active differential probes
TA331
£57
TA042 active differential probe specifications
Bandwidth DC to 100 MHz (–3 dB) 
Attenuation 100:1/1000:1
Rise Time 3.5 ns
Accuracy ±2%
Input impedance 4 MΩ ∥ 7 pF each side to ground
Input voltage
Max differential voltage input (100:1)
Max differential voltage input (1000:1)
± 140 V (DC + peak AC) or 140 V RMS
±1400 V (DC + peak AC) or 1000 V RMS
Common mode range ±1400 V (DC + peak AC) or 1000 V RMS
(100:1 and 1000:1) 
Absolute max. voltage
(differential or common mode)
±1400 V (DC + peak AC) or 1000 V RMS CAT III (1/100 & 1/1000) 
Output voltage
Swing (into 50 kΩ load) ±7V
Offset (typical) <±5 mV
Noise (typical)  0.9 mV RMS
Source impedance (typical)  50 Ω
CMRR (typical) 80 dB @ 60 Hz; 50 dB @ 1 MHz
Ambient operating temperature
–10 to 40 °C
Ambient storage Temperature  –30 to 70 °C
Power requirements 
Standard 4xAA cells or 6 V DC / 200 mA mains adaptor
or regulated 9 V DC / 120 mA mains adaptor
Option Power leads 
Length of input leads 30 cm
Length of BNC lead 90 cm
Weight 500 g
Dimension (LxWxH) 207 mm x 83 mm x 38 mm