Wouldn't an input resistance of 1000M and a required meter input resistance of 10M give a 100:1 division ratio, or am I missing something?

Your both off a bit the meter input resistance has nothing to do with the voltage divider ratio.... There is a 1000:1 voltage divider internal to the probe. The probes "output" (plugs to meter.) impedance is ~1mohm (the 1 portion of the 1000:1). The meter needs to be at least 10mohms input impedance to maintain the general rule of being =>10x the piece being measured in order to avoid loading and and incorrect low results etc...

How does the meter know it's reading high voltages? Or does it just tell you the reading in 'volts'?

The meter won't know that it's connected to a 1000:1 divider probe such as the 80K-40. The user will have to convert the reading (where 1V on the meter represents 1000V on the circuit).

Dear Sirs! Is any Metrology Certificate(s) supply with new Probe?

No certificates were supplied with the probe

The connector of this probe is banana type or not?? also whats the ac dc voltage range of this probe??

The 80K-40 is a high voltage probe designed to extend the voltage measuring capability of an AC/DC voltmeter to 40,000 volts peak AC or DC Overvoltage Category I. This means the probe can only be used to make measurements on energy limited circuits within equipment. Examples include high voltage within televisions or photo copy machines. DO NOT use this probe to measure high voltages on power distribution systems. The probe provides high accuracy when used with a voltmeter having 10 Megohm input impedance.

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⚡ Power up your precision — measure the extreme with confidence!

ENGINEERED FOR SAFETY - CAT I rating ensures safe use in low-energy environments 🛡️
SEAMLESS COMPATIBILITY - Optimized for voltmeters with 10MΩ input impedance for flawless readings 🔌
BUILT FOR PROFESSIONALS - Lightweight and compact design (300g, 45.7cm) fits your toolkit perfectly 🧰
PRECISION YOU CAN TRUST - Accuracy as tight as 1% in critical voltage ranges 🎯
ULTRA HIGH VOLTAGE REACH - Measure up to 40,000 volts AC/DC peak with confidence ⚡

The FLUKE 80K-40 high voltage probe extends your voltmeter's capability to safely measure up to 40kV AC/DC peak in low-energy circuits. With up to 1% accuracy and a CAT I safety rating, it’s engineered for professionals needing precise, reliable voltage readings without risking high-energy exposure.

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Manufacturer	フルーク(FLUKE)
Part number	382846
Item Weight	300 g
Product Dimensions	45.72 x 14.48 x 2.03 cm; 300 g
Is Discontinued By Manufacturer	No
Item Thickness	2.03 Centimeters
Power source type	Electrical
Measurement Accuracy	+/-0.5%
Included Components	No
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	45.7 x 14.5 x 2 cm

FLUKE (フルーク) 40kV高電圧プローブ【国内正規品】 80K-40

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