That provides accurate measurement of pH, oxidation-reduction potential(ORP), conductivity, salinity, and total dissolved solids (TDS).Starter pen meter are the economical option,Simple Operation in a Slim and Portable Design
COMPASS* CX Balance, Designed with Energy Efficient Weighing in Mind for Workplace & In-the-Field Weighing, Liquid Crystal Display (LCD) with backlight, Pan: Stainless Steel, Maximum Capacity: 220 g, Readability: 0.1 g, Pan Size (LxW): 5.6 in x 5 in
COMPASS* CX Balance, Designed with Energy Efficient Weighing in Mind for Workplace & In-the-Field Weighing, Liquid Crystal Display (LCD) with backlight, Pan: Stainless Steel, Maximum Capacity: 620 g, Readability: 0.1 g, Pan Size (LxW): 5.6 in x 5 in
Wireless Color Weather Station, 12/24 hr atomic time (manual set), Perpetual Calendar (day,month,date), Time alarm with Snooze, Transmission range: Up to 300 feet, Sensor: 2 AA Alkaline batteries, Indoor humidity range: 1% to 99% RH, Display: 6.16x0.93x9.65in
Large Corn Germination Plastomount, preserved and encased in clear resin material, observed from every side to see details, include the different stages of corn seed germination, Teacher information guide, student activity sheet, and answer key are included
Snake Skeleton Plastomount, Complete skeleton of a poisonous snake embedded in clear, durable, polyester resin, Non venomous, embedded specimen, Includes an instructional illustration
List View
Easy View (new)
