Meters & Monitors
Growers Edge Grower's Edge Large Display Thermometer / Hygrometer (20/Cs)
Measures indoor/outdoor temperature & indoor humidity. Stores the Min./Max. values of the indoor/outdoor temperature and indoor humidity. Switch between °C and °F. Clock function with 12/24 hour time format. Waterproof temperature probe. Comes with 1 AAA
$31.62
$18.97
Bluelab Combo Meter
The Bluelab Combo Meter is a conductivity, pH and temperature meter all-in-one. As the Bluelab Combo Meter is portable and does not require a power supply to operate, it can be used anytime and anywhere to help you manage your crops' daily nutrient requir
$348.74
$209.24
Bluelab Guardian Monitor
Adjustable brightness display. Large easy-to-read, plant-safe green LED displays. Selectable values for conductivity and temperature. Simple push button pH calibration system. No calibration required for conductivity and temperature. Silent alarm for both
$445.20
$267.12
Bluelab Original Truncheon Meter
With its super tough, high-quality, fully waterproof design, no calibration required, daylight readable blue LEDs and no on/off buttons to worry about, the Bluelab Truncheon® Nutrient Meter has proven itself as the world's favorite nutrient meter. It is p
$157.94
$94.76
Bluelab Conductivity Pen
Measures conductivity and temperature. Selectable units for conductivity and temperature. Backlit LCD display with low battery warning. Successful calibration indicator and calibration is optional. Fully waterproof. Auto off function and hold reading func
$104.94
$62.96