PicoScope 4444 accessories

High-resolution differential USB oscilloscope

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PicoConnect 442 25:1 differential probe (1000 V CAT III)

The PicoConnect 442 probe is a 25:1 attenuating probe that enables the PicoScope 4444 differential oscilloscope to measure voltages up to ±1000 V, or voltages with a large common-mode offset. Such voltages are found in electrical power converters, inverters, motor speed controls, switch mode power supplies and many other devices.

The probe is fitted with the Pico D9 connector for use exclusively with the PicoScope 4444 differential oscilloscope. Upon connection it is automatically identified by the scope as a 25:1 probe, allowing the PicoScope 6 software to scale the vertical axis with the correct probe attenuation.

The probe body provides double-insulated protection for the user for CAT ratings up to and including 1000 V CAT III.

The PicoConnect 442 probe is designed and tested to EN 61010-1:2010 General requirements and to EN 61010-2-030:2010 Particular requirements for testing and measuring circuits. The TA089 and TA090 sprung hooks are designed to EN 61010‑031:2015 Safety requirements for hand-held probe assemblies.

Compact top view of a PicoConnect 442 25:1 differential probe with 0.5m leads and TA089, TA090 sprung hook probes connected
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Title Language Issue Size Updated All products All languages All documents Status
PicoConnect 442 differential voltage probe user’s guide English 2 1 MB May 03 2017 English open
PicoConnect 442 EU Declaration of Conformity English 1 317 KB Mar 30 2017 English open
PicoConnect 442 25:1 differential probe specifications (1000 V CAT III)
Bandwidth (–3 dB) 10 MHz
DC accuracy ±2% plus scope accuracy
Input resistance  16.7 MΩ ± 1% each input to scope ground
Input capacitance 9.3 pF ± 1 pF each input to scope ground
Attenuation 25:1
Differential ranges ±2.5 V, ±5 V, ±12.5 V, ±25 V, ±50 V, ±125 V, ±250 V, ±500 V, ±1000 V
Common mode ranges  125 V (2.5 V to 12.5 V ranges) 1000 V (25 V to 1000 V ranges)
Measurement category 1000 V CAT III 
Connectors 1 x red, 1 x black 4 mm sockets, 1000 V CAT III shrouded
Cable length 1.5 m
Connector  D9(m) with screw locks. Only for connection to PicoScope 4444 differential oscilloscope.
Temperature 0 °C to 45 °C operating
15 °C to 30 °C for stated accuracy 
–20 °C to 60 °C storage
Humidity  5% to 80% RH non-condensing, operating
5% to 95% RH non-condensing storage
Altitude Up to 2000 m
Pollution degree 2 (as defined in IEC 61010-1:2010: only non-conductive pollution occurs except that occasionally a temporary conductivity caused by condensation is expected)
Weight  < 200 g
Enclosure dimensions  118 x 50 x 28 mm
Safety approvals  EN 61010-1:2010
EN 61010-2-030:2010
EMC approvals EN 61326-1:2013
FCC Part 15 Subpart B
(when tested with PicoScope 4444)
Environmental approvals RoHS and WEEE compliant
Included accessories
Input leads  0.5 m, 1 x black TA308 and 1 x red TA309, with 1000 V CAT III shrouded 4 mm connectors at both ends
Sprung hook probes  1 x black TA089, 1 x red TA090, 1000 V CAT III