39" dia × 2" H (137 × 51 mm) Weight 1

The HI5036-050 is for 500 mL of calibration solution

600 hours of continuous use Environment 0 to 50 °C (32 to 122 °F) RH max

Vendor: HM Digital

1413 µS/cm NIST-Traceable EC Standard — Ideal for hydroponics

Hanna HI721-25 Iron Checker Reagents - 25 Tests for HI721 Colorimeter Soil Moisture 39" dia × 2" HThe HI721 25 are the replacement reagents for the HI721 Iron Checker HC. These high quality reagents are manufactured in our state of the art facility and are clearly marked with the lot number and expiration date on each packet for traceability. Pre made reagents for ease of use Prepared with high purity chemicals Marked with expiration date and lot number for traceability The HI721 25 are high quality reagents that are pre measured, allowing for