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The Cal Test Electronics CT2700 is a high voltage DMM probe that extends the measurement range of a standard digital multimeter to voltages up to 40 kV DC (or 28 kVrms AC). Using a precision 1000:1 voltage divider, the probe scales high voltage inputs down to a level a standard meter can safely read — a 1,000 V input reads as 1 V on the DMM. Output is provided through 4 mm sheathed banana plugs designed to connect to any DMM with a minimum 10 MΩ input impedance.
The CT2700 is intended for high voltage measurement applications where a standard DMM lacks sufficient input range. With its 1000 MΩ input resistance and 300 Hz bandwidth, it is suited to DC and low-frequency AC voltage measurement on high voltage power supplies, transformers, and similar equipment. The retractable sheathed banana plug design and IEC 61010-031 CAT I rating reflect its intended use as a measurement accessory in controlled bench and lab environments.
Cal Test Electronics is a US-based manufacturer of test and measurement accessories, including test leads, probes, and adapters used across electronics labs, service environments, and educational programs.
| Electrical Specifications | |
|---|---|
| Maximum Input Voltage (CAT I) | 40 kV (DC+Peak AC) 28 kVrms AC |
| Division Ratio | 1000:1 |
| Bandwidth | 300 Hz (-3 dB) |
| Temperature Coefficient | ≤200 ppm/°C |
| Input Resistance | 1000 MΩ |
| DC Volts Accuracy | ±1% (<20 kV) ±3% (20 kV to 40 kV) ≤0.5% (with 10 MΩ input impedance DMM only) |
| AC Volts Accuracy | 5% at 60 Hz (1 to 28 kV) |
| Maximum Loading Current | ≤40 µA (at 40 kV DC) |
| Maximum Loading Power | ≤1.6 W |
| Source Impedance | 10 MΩ |
| Mechanical Characteristics | |
| Dimensions (Length x Diameter) | 340 x 80 mm |
| Cable Length | 3.3 ft (1 m) |
| Weight | 0.66 lbs (300 g) |
| Environmental Characteristics | |
| Designed for Use in | Pollution Degree 2 |
| Operating Environment | 32°F to 122°F (0°C to 50°C) |
| Storage Temperature | -4°F to 158°F (-20°C to 70°C) |
| Humidity | ≤80% relative humidity at 104°F (40°C) |
| Safety Specifications | |
| Safety Standard | IEC 61010-031 CAT I |
Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.
Model No
Cal
Condition
New
Manufacturer
Cal Test
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
30+ Years in Business
Secure Payments
Sell Test Equipments
Knowledgeable Staff
On-site Lab
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