Learning Resources in The Garden Critter Counters - 72 Pieces, Ages 3+ Toddler Learning Toys, Math Games for Kids, Math Manipulatives bee The PH-80 is factory calibrated

The PH-80 is factory calibrated for your convenience and can easily and quickly be recalibrated with digital calibration to pH 4

PREMIUM MATERIAL: SUNGATOR selects high quality solid brass

go out for BBQ

Coil Voltage:24 VAC

Learning Resources in The Garden Critter Counters - 72 Pieces, Ages 3+ Toddler Learning Toys, Math Games for Kids, Math Manipulatives bee The PH-80 is factory calibratedLearning Resources in The Garden Critter Counters 72 Pieces, Ages 3+ Toddler Learning Toys, Math Games for Kids, Math Manipulatives Reinforce counting, sorting, patterning, and other early math skills. Set of 72 counters come in 6 shapes and colors. Garden critters include dragonfly, snail, grasshopper, caterpillar, spider, and bee. Features storage bucket and activity guide. Product Features Kids learn to count objects and compare numbers with