A lineup of five black AC Infinity sensors and digital testers, including cabled probes and a handheld meter with an LCD screen.

Sensors and Testers

Grow Accessories

CO2 + Light Sensor, Environmental Sensor, Dynamically Assists Controller AI+ to Learn and Manage Equipment. CO2 Data Tracking for Gardens, Grow Tents, Grow Spaces, with Smart Fan programming for Optimized FAE, Day & Night Scheduling — AI CO2 + Light Sensor, for CO2 Data Tracking, Optimized FAE, Day & Night Scheduling

AI CO2 + Light Sensor, for CO2 Data Tracking, Optimized FAE, Day & Night Scheduling

$49.99

Soil Sensor Probe for AI Controllers, Monitor Moisture & Saturation for Gardens, Grow Tents, Grow Spaces, Detachable Stem, IP67 Seal Protection — AI Soil Sensor, for Moisture and Saturation Level Monitoring, IP67

AI Soil Sensor, for Moisture and Saturation Level Monitoring, IP67

$21.99

Monitor Presence of Water for Gardens, Grow Tents, Grow Spaces, Suction and Magnetic Mounting, IP68 Seal Protection — AI Water Sensor, for Liquid Presence Detection, IP68

AI Water Sensor, for Liquid Presence Detection, IP68

$29.99

Environmental Sensor, Dynamically Assists Controller AI+ to Learn and Manage Equipment. pH, EC, TDS and Temp Data Tracking for Gardens, Grow Tents, Grow Spaces and more — AI Hydro Sensor, for pH, EC, TDS and Water Temp Data Tracking

AI Hydro Sensor, for pH, EC, TDS and Water Temp Data Tracking

$149.00

High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools — pH Meter Kit, pH Pen Tester for Water

pH Meter Kit, pH Pen Tester for Water

$69.99

High Precision Digital pH Pen with ±0.01 pH Accuracy and Interchangeable Probe, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools — pH Meter PRO Kit, Interchangeable Probe

pH Meter PRO Kit, Interchangeable Probe

$79.99

High Precision Digital pH Pen with ±0.01 pH Accuracy and Interchangeable Probe, All-in-One Temperature Salinity EC TDS pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools — Hydroponic Meter PRO Kit, All-in-One pH Pen, Interchangeable Probe

Hydroponic Meter PRO Kit, All-in-One pH Pen, Interchangeable Probe

$149.00

Measures Acidity, Alkalinity, and Temperature with ±0.01 pH Accuracy, For Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools — Replacement Probe for pH Meter PRO Kit

Replacement Probe for pH Meter PRO Kit

$29.99

Measures Acidity, Alkalinity, Temperature, EC, TDS, & Salinity with ±0.01 pH Accuracy, For Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools — Replacement Probe for Hydroponic Meter PRO Kit

Replacement Probe for Hydroponic Meter PRO Kit

$59.99