# B&K Precision PR65 700 V 30 MHz High-Voltage Differential Probe # B&K Precision PR65 700 V 30 MHz High-Voltage Differential Probe ## Key Features At A Glance - Up to ±700 V (PR65) or ±1400 V (PR67) differential input, DC + AC Peak, across the series - 1000 V CAT III maximum rated input voltage, each side to ground - 30 MHz (-3 dB) bandwidth with 14 ns rise time and ±2% gain accuracy - cTUVus certified to IEC 61010-031:2015 - Switchable attenuation ratio plus a voltage over-range indicator - Multiple power options: 4x AA batteries, USB-C from the oscilloscope, or universal mains adapter - Insulated BNC output interface and removable protective rubber case Differential probes let earth-grounded oscilloscopes make safe, accurate floating measurements between two voltage points. The PR65 Series high-voltage differential probes convert floating signals into low-voltage, ground-referenced signals that can be displayed safely on any ground-referenced oscilloscope. The series comprises two models — the PR65 and the PR67 — sharing a common 30 MHz architecture while differing in attenuation ratio and maximum input voltage. The PR65 Series is intended for precision power-semiconductor work, switch-mode power supply design, general floating measurements, power converter measurements, and precision motor-drive measurements. In each of these applications the probe isolates a floating signal from the oscilloscope's grounded input so the waveform can be observed without the safety and accuracy compromises of a direct connection. ValueTronics stocks and holds its own inventory in a 20,000 sq ft secure warehouse at 1675 Cambridge Drive in Elgin, Illinois, and has specialized in new and used test-and-measurement equipment since 1992. ## Compare Other Models in This Series The PR65 Series consists of two 30 MHz high-voltage differential probe models — the PR65 and the PR67 — that share a common platform, including 30 MHz bandwidth, 14 ns rise time, ±2% gain accuracy, a 1000 V CAT III rated input each side to ground, and cTUVus certification to IEC 61010-031:2015. The two models differ in their switchable attenuation ratios and their maximum differential and common-mode input voltages. Both models offer the same interface and power flexibility: an insulated BNC output, insulated 4 mm sheathed banana-plug inputs, a voltage over-range indicator, and power from AA batteries, a USB-equipped oscilloscope, or the included mains adapter. The choice between them is driven by the voltage level of the signal being measured. Each model below links to its own dedicated product page with new-matched pricing. Select the model whose voltage and attenuation range fits your measurement, then choose the listing for the condition you need. The PR65 provides switchable 10x / 100x attenuation and a maximum differential and common-mode input voltage of ±70 V at 10x or ±700 V at 100x (DC + AC Peak). The PR65 uses 10x / 100x attenuation with a maximum input of ±70 V at 10x and ±700 V at 100x (DC + AC Peak). The PR67 uses 20x / 200x attenuation with a maximum input of ±140 V at 20x and ±1400 V at 200x (DC + AC Peak). These same values apply to both the differential and common-mode input voltage limits for each model. All other published characteristics — 30 MHz bandwidth, 14 ns rise time, ±2% gain accuracy, 5 MΩ / 2 pF input impedance each side to ground, ±7 V output into 1 MΩ, and the CMRR figures — are common across the series. Refer to the comparison table that follows for the model-by-model attenuation and voltage values. Model Attenuation Ratio Max Differential Voltage Bandwidth **PR65** 10x / 100x ±70 V at 10x / ±700 V at 100x 30 MHz PR67 20x / 200x ±140 V at 20x / ±1400 V at 200x 30 MHz Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - Insulated sprung hook probes (1000 V CAT III, 20 A) - Protective rubber case - USB power cord (1 meter, USB-A to USB-C) - Power adapter (North America plug to USB-A female) - EU plug converter ## Product Core & Specifications Specification Value Performance Characteristics Bandwidth (-3 dB) 30 MHz Gain Accuracy ±2% Attenuation Ratio 10x / 100x Rise Time 14 ns Maximum Rated Input Voltage (each side to ground) 1000 V CAT III Maximum Differential Input Voltage (DC + AC Peak) ±70 V at 10x / ±700 V at 100x Maximum Common Mode Input Voltage (DC + AC Peak) ±70 V at 10x / ±700 V at 100x Input Impedance 5 MΩ, 2 pF (each side to ground) Output Voltage ±7 V (driving 1 MΩ load) Offset (typical) ±20 mV Noise (typical) 0.7 mVrms CMRR (typical) 50 Hz: -72 dB; 20 kHz: -66 dB; 200 kHz: -56 dB Power Requirements Power 4x AA batteries or USB-C cable Mains Adapter (North America Plugs) Input: 100 to 240 V AC, 0.35 A; Output: 5 VDC, 1 A Environmental and Safety Safety cTUVus certified to IEC 61010-031: 2015 Operating Temperature 14 °F to 104 °F (-10 °C to 40 °C) Storage Temperature \-22 °F to 158 °F (-30 °C to 70 °C) Humidity ≤ 80 % RH at 25 °C to 35 °C (77 °F to 95 °F) Altitude Operating: 2000 m; Non-operating: 15000 m Pollution Degree P2 General Included Accessories Insulated sprung hook probes (1000 V CAT III, 20 A), protective rubber case, USB power cord (1 meter, USB-A to USB-C), power adapter (North America plug to USB-A female), and EU plug converter Input Leads Length 21.65”± 1.18” (55 cm ± 3 cm) BNC Cable Length 37.4”± 1.18” (95 cm ± 3 cm) Dimension (L x W x H) 8.66”x 2.67” x 1.10” (220 mm x 68 mm x 28 mm) (with protective rubber case) Weight 1.08 lbs (488 g) (with batteries and protective rubber case) USB Type C cable Length 39.37”± 1.18” (100 cm ± 3 cm) > **Important:** Designed for use with oscilloscopes that present a 1 MΩ input impedance; the output is ±7 V driving a 1 MΩ load. > **Important:** With the exception of rise time and gain accuracy, all specifications are typical and apply to the unit after a temperature stabilization time of 30 minutes over an ambient temperature range of 23 °C ± 5 °C. ## About this New unit This is a brand-new, factory-sealed unit, supplied exactly as it arrives from the manufacturer and backed by the full manufacturer warranty. For the exact configuration, available options, included accessories, or current lead time for your application, our Test Architects can confirm the details before you order. ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application. **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.** ## Details - **Price:** 582.0 USD - **Vendor:** B&K Precision - **Type:** Diff Probe - **Tags:** BK Precision, Differential, Manufacturers, Other Equipment, Probe, product_manual_group_3, Product_new ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 582.00 USD | In stock | ## Images - B&K Precision PR65 700 V 30 MHz High-Voltage Differential Probe --- > Source: [ValueTronics](https://valuetronics.com/products/pr65-b-k-precision-differential-probe-new) > Updated: 2026-06-20