Name	Description	Category
Testo 54-7DC (5400 6555) 54-7DC external display with RS485	Optimum illumination even in dark surroundings 24 Volts DC Data saved for 10 years (EEPROM), scaling limits, input type and other parameters stored securely Key locking possible Front Measures 48 mm length by 24 mm width, slot measures 45 mm length by 22.2 mm width by 59 mm depth	Displays
Testo 54-8AC (5400 7556) 54-8AC external display with RS485	Optimum illumination even in dark surroundings 230 Volt AC Data saved for 10 years (EEPROM), scaling limits, input type and other parameters stored securely Key locking possible Front Measures 48 mm length by 24 mm width, slot measures 45 mm length by 22.2 mm width by 59 mm depth	Displays
Testo 54-8DC (5400 6556) 54-8DC external display with RS485	Optimum illumination even in dark surroundings 24 Volts DC Data saved for 10 years (EEPROM), scaling limits, input type and other parameters stored securely Key locking possible Front Measures 48 mm length by 24 mm width, slot measures 45 mm length by 22.2 mm width by 59 mm depth	Displays
Testo 5400 6554 54-3DC Digital Display, 24 VDC Voltage	Optimum illumination even in dark surroundings Auxiliary energy output 24 VDC, no need for additional supply unit for transmitter Data saved for 10 years (EEPROM), scaling limits, input type and other parameters stored securely Key locking possible Front Measures 48 mm length by 24 mm width, slot measures 45 mm length by 22.2 mm width by 59 mm depth	Displays
Testo 5400 7555 54-7AC Process Display with RS-485 Output, 230 VAC Voltage	Optimum illumination even in dark surroundings Auxiliary energy output 230 VAC, no need for additional supply unit for transmitter Data saved for 10 years (EEPROM), scaling limits, input type and other parameters stored securely Key locking possible Front Measures 48 mm length by 24 mm width, slot measures 45 mm length, by 22.2 mm width by 59 mm depth	Displays
Testo 0133 0010 Internal Filter for 330/335/342/346 Measuring Instruments	Testo 0133 0010 Internal Filter for 330/335/342/346 Measuring Instruments	Filters
Testo 0554 0040 Spare Particle Filter for CO Flue Gas Probes (Pack of 10)	Spare particle filter For CO flue gas probe	Filters
Testo 0554 0146 Spare Soot Filter Paper Roll for Digital Smoke Testers (Pack of 8)	Spare soot filter paper roll For use with digital smoke testers	Filters
Testo 0554 0308 Manual Smoke Pump Filter Paper for Analysis Box	Manual smoke pump filter paper for analysis box Filter paper to determine smoke number 40 strips for approximate 200 measurements	Filters
Testo 0554 1101 Spare Dirt Filter for Flue Gas Analyzers (Pack of 10)	Spare dirt filter For use with flue gas analysers	Filters
Testo 0554 3311 Measurement Chamber Prefilter for 6721 Pressure Dew Point Guard	Prefilter for oily, contaminated compressed air For use with 6721 pressure dewpoint guards Protects measurement chamber and sensor from dirt particles	Filters
Testo 0554 3385 Spare Particle Filter for Modular Flue Gas Probes (Pack of 10)	Spare particle filter For modular flue gas probe	Filters
Testo 0554 9913 Sintered Teflon Filter with 1.5 mm Condensate Drip Hole	Sintered teflon filter with 1.5 mm condensate drip hole Ideal for high humidity with condensation protection	Filters
Testo 0554 3166 Leak Detection Foam Spray for Complete Testing System	Leak detection spray for spraying on the gas pipe Shows leaking points where bubbles form	Foam Spray
Testo 0430 0941 Professional Telescopic Handle for Plug In Vane Probes	Professional telescopic handle For plug-in vane probes 1m maximum length	Handles
Testo 0430 3545 Anemometer Handle for Plug In Vane Probes	Anemometer handle For plug in vane probes	Handles
Testo 0554 0191 Wireless Handle with TC Adapter for Plug In Probe Heads	Wireless handle for plug in probe heads For use with measuring instruments Approval for USA, CA, CL Measuring range: -50 to 1000 ° C	Handles
Testo 0554 0222 Replacement TC Adapter for Measurement Instrument Wireless Handle	Replacement TC adapter For measurement instrument wireless handle	Handles
Testo 0516 0440 TopSafe with Bench Stand and Belt Clip for 445, 645 Measuring Instrument	TopSafe with bench stand and belt clip For 445, 645 measuring instrument Indestructible protection case	Holders & Stands
Testo 0554 0743 Tripod with Holders for Comfort Level Measurement	Tripod for comfort level measurement Includes holders for hand-held instrument and probes Can also be used as probe extension	Holders & Stands