H-B DURAC 60-Minute Mechanical Timer (B61700-2500) This DURAC analog timer features 60-minute count down time with a turn dial to set count down time Dimensions: 57mm x 57mm (2.2in x 2.2in) Channels: 1; minutes: 60; accuracy: 3 minutes RoHS compliant; calibrated in our triple accredited ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD Individually packaged with multi-language instructions and a multi-language Traceability Statement indicating accuracy traceable to NIST and DKD