Features the largest display available on a timer: 3 x 2-1/2". Can be easily read from across a room. Simultaneously displays either one count up channel and a clock, or two count down channels. All channels have a range of 24 hours with 1 second resolution. Also indicates how much time has elapsed after a count down alarm sounds and conveniently recalls the last timer setting for reuse. White case has extra-large start/stop button and a loud alarm. Wall mount or fold for benchtop use. Uses one AAA battery (included). *Certification OptionN.I.S.T. traceable Certificate of Compliance is available at an additional cost (select option above). Dimensions: 5 x 3¾ x ½"Weight: 6.7 oz Downloads Instruction Manual Product Brochure Comparison Chart Sper Scientific Timer Comparison Model 810001 810002 810003 810005 810015 810017 810028A 810038 810045 Description 24 Hour Digital Timer 2 Channel Digital Timer Digital Count Up/Down Timer Large Display Timer 5 Channel Timer Project Timer Stainless Lab Timer Talking Count Up/Down Timer Continuous Alarm Timer Maximum Range 23h 59m 59s 99h 59m 59s 99m 59s 19h 59m 59s 99h 59m 59s Up to 8 Years 99m 59s 23h 59m 59s 9999 Min Resolution 1 Sec Count Down - 1 Sec Count UP - 1/100 Sec for 1st Hour 1 Sec 1 Sec 1 Sec 1/100 Sec 1 Sec 1 Sec 1 Sec for 1st 59 mins / 1 Min Count Up Yes Yes Yes Yes Yes Yes Yes Yes Yes Count Down Yes Yes Yes Yes Yes Yes Yes Yes Yes Channels 1 2 1 2 4 1 1 1 1 Clock Function Yes Yes — Yes Yes Yes — Yes — Recall Previous Setting Yes Yes Yes Yes — — Yes Yes — Audio Alarm Yes Yes Yes Yes Yes Yes Yes Yes Yes Continuous Alarm — — — — — — — — Yes Visual Alarm Yes Yes Yes — — — — — Yes Memory — Yes — Yes Yes — — Yes — Auto Repeat — — — — — — — Yes — Magnetic Back Yes Yes Yes — Yes — Yes Yes Yes Hanging Bracket Yes Yes — Yes — — Yes — — Pocket Clip — — Yes — Yes — — Yes Yes Folding Stand Yes Yes Yes Yes Yes Yes Yes Yes Yes Battery Type (2) AAA (2) AAA (2) AAA (1) AAA CR2032 (1) AAA (1) AAA (2) LR42 (2) AAA
