24 hour count down/count up timer with large control buttons and ¾” high digits. 

This timer features a small footprint with an attractive and functional white and black plastic housing. Count up or count down in hours, minutes and seconds to an audible alarm with LED light. Mode button allows you to easily switch between timer and clock modes. Includes folding stand and hanger, two AAA batteries and instructions.

Dimensions: 3-1/4" x 2-5/8" x 7/8" (83 x  67 x 22 mm)
Weight: 2.5 oz. (71 g)

• Durable Construction: Timer is designed for long-lasting and reliable performance in most any environment.
• Easy to Use: With a digital display and set time reminder function, this timer allows users to easily keep track of time in the lab, kitchen or anywhere.
• Versatile: Suitable for both home and lab use, this timer can be used for a wide variety of tasks.
• Clock Function: Easily switch between Timer and Clock modes.
• Desktop or Wall Mount: Back of unit features a folding stand, wall hanger and two magnets for use almost anywhere.
  
  
  

*Certification Option

N.I.S.T. traceable Certificate of Compliance is available at an additional cost (select option above).

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