Click here to download the catalog as a PDF file. To view this site you need Adobe Flash Player and your browser must allow javaScripts. Go here to get the latest Flash Player. Adjustable emissivity setting for precise calibration. Measure the surface temperature of solid objects! Infrared thermometers allow you to measure the temperature of solid surfaces, even a very hot one, without touching it (or changing its temperature)! Just point and press the button for an accurate reading. The Laser Infrared Thermometer features a red laser sight for pinpoint accuracy up to 250°C (482°F). Adjustable emissivity lets you adapt for different surface types, and the tight distance to spot (D:S) ratio of 8:1 means that from a distance of 8 inches, you are measuring a spot just 1 inch across. Battery and storage case included. Accuracy ±1.8°. Try the Digital Infrared Thermometer (not pictured) if your budget is tight. Range: -33C to 204C (-27.4°F to +400°F). Emissivity: 0.95. Accuracy ±2º. CR2032 battery and storage case included. 68-6505 68-6500 Laser Infrared Thermometer Digital Infrared Thermometer 6 or more $49.95 $29 $27 Quickly change between available mode settings Vernier Caliper Dual scale caliper. Touch of the button takes your measurement Laser guided for accuracy! For inside and outside measurements in metric or English units. Ideal for learning precision measurement techniques. 12.5 cm metric scale with 1 mm increments. Locking pin secures readings, and knurled thumbwheel permits fast, easy measurements. Plated steel. Includes plastic case. P1-1030 Vernier Caliper 6 or more $6.95 $6.50 Deluxe Trundle Wheel A trundle wheel is essential to large-scale outdoor labs, by making long distances easy to measure. Just roll the wheel along the ground to measure linear distance. Our Deluxe Trundle Wheel has a metered counter, heavy-duty construction, telescoping handle, and a convenient carrying case for field study. 01-8020 01-8019 Deluxe Trundle Wheel Trundle Wheel With the new Deluxe Trundle Wheel, just set, roll, and read the total distance, up to 9,999 meters! Micrometer Micrometer measures small outside diameters and thickness up to 25 mm. Includes ratchet and locknut for accurate readings. Solid brass body with chrome satin finish. Wooden storage box. 0.01 mm accuracy. P1-1040 Simple to use even by the inexperienced student. Clear easy-to-read numbers reduce errors. $55 $18.95 Micrometer 6 or more $20 $17 NEW! Digital Timer Simple digital timer, perfect for student use at any level. 1/100 second precision, with lap button, lanyard, replaceable battery, and nothing extra such as alarms or confusing calendar or memory settings. 52-3200 Digtal Timer $9.95 6 or more $8 Attached Lanyard helps prevent students from accidently dropping the timer during lab activities. Easy-to-use buttons cut down the confusion and helps increase student accuracy. NEW! ▲ The basic Trundle Wheel makes an audible click after each turn of its 1m-circumference wheel. visit arborsci.com > > > FREE Product Demos! Secure Online Ordering! UPS Shipping Quotes! 56 1-800-367-6695 ▲