Important Announcements

Date	Model	Caption	Remarks
Sep. 09, 2025	CLAMP EARTH TESTER FT6380,FT6381,FT6380-50,FT6380-90	When measuring the high resistance, the measurement value may fluctuates a lot by open/close action of clamp sensor and may become the out of the accuracy specifications.	Hardwere
Sep. 21, 2022	HUMIDITY LOGGER LR5001, LR5001-20
Jun. 10, 2022	RESISTANCE METER RM3544-01	Non0conformance on the firmware: Out of accuracy for the first measurement after changing the range in auto range	Please refer to the link
May. 29, 2020	CONNECTION CORD L9197	Important Safety Notice and Recall: Connection Cord L9197	Hardware
Jan. 10, 2020	Insulation Tester ST5520, ST5520-01	The measurement results may be out of accuracy	V2.04 or later
Sep. 19, 2019	Memory HiCorder MR6000, MR6000-01	Memory HiCorder does not start at power ON	V2.10 or later
Aug. 01, 2018	Compliance with the EU General Data Protection Regulation
Apr. 02, 2018	Hioki Extends Warranty Period for 400 Products to 3 Years
Aug. 24, 2017	Chemical Impedance Analyzer IM3590	Measurement Error Defect	V1.10 or later
Jun. 15, 2015	Leak Current HiTester ST5540, ST5541	ST5540 may generate false pass judgments.	V1.06 or later
Dec. 19, 2014	TACHO HiTESTER FT3405, FT3406	Measured values can become unstable and indicate higher.	Hardware
Jun. 30, 2014	Non-RoHS-Compliant Products
Dec. 19, 2013	Digital Multimeter DT4252	Non-conformance with specified current measurement accuracy.	Hardware
Jun. 03, 2013	CLAMP ON POWER LOGGER PW3360-10, PW3360-20, PW3360-30, PW3360-91	Recall Notice: Model PW3360 series and Model PW9002 Risk of Electric Shock	Hardware
Oct. 30, 2012	MEMORY HiCORDER 8841, 8842, 8841T, 8720	Recall Notice: MEMORY HiCORDER	Hardware
Dec. 16, 2011	Data Logger LR5001, LR5011, LR5021, LR5031, LR5041, LR5042, LR5043, LR5051, LR5061	Erroneous values may appear among the measurement values on a regular basis.	Please refer to the link
Jul. 03, 2006	Clamp On Power HiTester 3169 Series	Recall Notice to Users of Clamp On Power HiTESTER 3169 Series	Hardware