A simple and accurate device for checking pH levels in water. The unit is equally valuable for keeping your fish tank at the proper pH level.

pH Solution to suit pH Meter QM-1670

A must for anyone involved with food preparation or storage. This USB datalogger logs up to 32000 readings (16000 temperature, 16000 humidity).

A must for anyone involved with food preparation, archiving or storage or applications where storage of environment information is important.

This Digital Rain Gauge with Temperature has a wireless self-emptying rain collector for measuring rain fall and temperature.

Keep an eye on your outdoor water tank from the comfort of your own living room.