We are proud suppliers of high precision Cropico decade resistance boxes that offer a variable range of resistors for versatile and efficient resistance simulation. We have one decade, three decade, five decade, six decade, eight decade and nine decade resistor boxes available including the Cropico RM6, RM6-N, RM8 and RH9A resistance substitution boxes. These resistance calibration boxes offer a wide range of resistances from 0.01 ohm up to 1 Tera ohm and are fantastic instruments for accurately calibrating lab equipment such as ohmmeters and ammeters. Many of these decade resistance boxes are also suitable for use in the aerospace industry. We offer the Cropico CM5-N, a five decade capacitance compensation box to compliment the RM6-N series. We are also decade box suppliers of the low cost Martindale TEK903 resistance box and the TEK905 capacitance box.

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Best Sellers

Cropico RH9A-4 High Resistance Decade Box £5092.00 £4375.00 Cropico RM8 Decade Resistance Box £587.00 £520.00 Cropico RM6-N3 Decade Resistance Box £209.00 £190.00 Martindale TEK904 Enhanced Decade Box £179.94 £155.00

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Cropico CM5-N Decade Capacitance Box £258.00 £225.00 Five decade capacitance calibration box use high insulation capacitors that can be set from 100pF up to 10µF with a 5% accuracy.	Cropico RH9A-1 High Resistance Decade Box £3106.00 £2675.00 High ohm resistance decade box with 3 decades operating from 1GΩ up to 1TΩ with 1kΩ resolution. Great for calibrating high voltage insulation sets.	Cropico RH9A-2 High Resistance Decade Box £3290.00 £2825.00 Resistance calibration box with 6 decades for simulating resistances from 1kΩ to 100MΩ. Offers 0.1% accuracy for high precision calibrating.
Cropico RH9A-3 High Resistance Decade Box £3962.00 £3395.00 High resistance, high voltage decade resistance box suitable for 5kV test equipment with up to 1TΩ resistance substitution.	Cropico RH9A-4 High Resistance Decade Box £5092.00 £4375.00 9 decade resistance calibration box covering a comprehensive range of variable resistances from 1kΩ up to 1TΩ with a 1kΩ resolution.	Cropico RH9A-5 High Resistance Decade Box £1717.00 £1495.00 High ohm resistance, single decade box ranging from 1kΩ up to 1TΩ in 10 steps. Great for calibrating high voltage insulation sets.
Cropico RM6 Decade Resistance Box £151.00 £145.00 Six decade resistance calibration box with double pole switching and a resistance range of 10Ω upto 10MΩ with an accuarcy of ±1%.	Cropico RM6-N Decade Resistance Box £193.00 £175.00 An accurate six decade resistor box with a resistance range from 10Ω to 10MΩ and ±1% accuracy for simple resistance selection and adjustment.	Cropico RM6-N2 Decade Resistance Box £200.00 £180.00 High precision resistance calibration box with a resistance range from 1Ω to 1MΩ and ±1% accuracy. Highly portable with six decades.
Cropico RM6-N3 Decade Resistance Box £209.00 £190.00 Six decade resistance calibration box with a resistance range from 100 Ω to 100 MΩ and ±1% accuracy for simple resistance selection and adjustment.	Cropico RM8 Decade Resistance Box £587.00 £520.00 Eight decade resistance calibration box that simulates resistances from 0.01Ω to 1MΩ for high precision calibration of electrical test equipment.	Martindale TEK903 Decade Resistance Box £153.49 £125.00 A low cost resistance calibration box with six decades ranging from 10 ohms upto 11.1111 Megohms with an accuarcy of 1%.
Martindale TEK904 Enhanced Decade Box £179.94 £155.00 An enhanced resistance calibration box with seven decades ranging from 11 ohm upto 11.1111 Megohms with an accuarcy of 1%.	Martindale TEK905 Decade Capacitance Box £174.07 £149.00 A low cost, five decade capacitance calibration box from 100pF to 4.111µF with a 5% accuracy.