These are $10 discs from Amazon that I was charged $30 for.
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Soil Moisture Meter Long Stem Deep Use, Plant Hygrometer, Water Monitor Tester, for Garden, Flower pots, Lawn, 2 Pack
Regular price ¥5,400 JPYRegular price -
4-in-1 Plant Soil Tester with pH, Moisture, Fertility & Light Meter, Rotatable Dial Soil Test Kit, No Battery Required for Garden, Lawn, Farm, Indoor & Outdoor Plants, White
Regular price ¥5,400 JPYRegular price -
Flora Pod AI-Powered Smart Plant Monitor | for Indoor or Outdoor Plants | Personalized Alerts for Moisture, Temperature, Humidity, and Light
Regular price ¥17,500 JPYRegular price -
Tennedriv Green 2 Pack Soil Moisture Meter for House Plants, Plant Water Meter,Plant Moisture Meter for House Plants and Outdoor Plants, No Batteries Required
Regular price ¥6,000 JPYRegular price -
Tennedriv Green Soil Moisture Meter for House Plants, Plant Water Meter,Plant Moisture Meter for House Plants and Outdoor Plants, No Batteries Required
Regular price ¥3,200 JPYRegular price -
Smart Soil pH Meter for Garden Lawn Digital Soil pH Test Kit for Indoor Plants Soil pH Tester for Grass, Greenhouse, Outdoor, Farming, Yard Plants Measuring Soil pH for House Plant
Regular price ¥11,100 JPYRegular price -
Soil Hydrometer (0.995 to 1.038)
Regular price ¥20,900 JPYRegular price -
RAINPOINT Smart Digital Wireless Plant Moisture Meter Houseplants Indoor WiFi Hub Kit with Low/High Moisture Alert,Real-time Monitor Hygrometer Sensor Outdoor Gardening Push Notification&Email
Regular price ¥9,400 JPYRegular price -
RAINPOINT Smart Digital Wireless Plant Moisture Meter Houseplant Indoor,WiFi Hub Needed,Capacitive Probe,Leave-in Soil Hygrometer Sensor,Real-time Monitor Outdoor Greenhouse Gardening(Two-Pack Set)
Regular price ¥12,200 JPYRegular price -
RAINPOINT Smart Digital Wireless Plant Moisture Meter Houseplant Indoor,WiFi Hub Needed,Capacitive Probe,Leave-in Soil Hygrometer Sensor,Real-time Monitor Humidity Tester Outdoor Gardening
Regular price ¥5,400 JPYRegular price -
RAINPOINT Light-Driven Thermo-Hygrometer & Smart Digital Wireless Soil Moisture Meter (WiFi Hub Needed) Kit, Real-time Monitor Sensor Gardening Plant Care Essentials
Regular price ¥6,400 JPYRegular price -
Compressed Organic Potting Soil: 100% Organic, Expands Up to 4X with Water, Nutrient-Dense Plant Food Derived from Worm Castings, Types of Plants, Kid & Pet Safe (Two 2 lb Bags)
Regular price ¥22,400 JPYRegular price -
Soil Moisture Meter 4 in 1,Plant Water Monitor,Automatically detect Moisture/Temperature/Light/Fertility,Can Connect to Mobile Phone via Bluetooth,Hygrometer Sensor for Indoor Plants (3pc)
Regular price ¥22,200 JPYRegular price -
RAINPOINT Digital Compact Soil Moisture Meter for Indoor/Outdoor Plants, Soil Probe Hygrometer Sensor Tester Sets for Garden Lawn Farm, Easy Operation House Pot Plants Moisture Detector- 3 pcs
Regular price ¥10,500 JPYRegular price -
Kensizer Soil Tester, Soil Moisture/pH Meter, Gardening Farm Lawn Test Kit Tool, Digital Plant Probe, Water Hydrometer for Indoor Outdoor, No Battery Required
Regular price ¥3,900 JPYRegular price -
Soil Moisture Meter 4 in 1,Plant Water Monitor,Automatically detect Moisture/Temperature/Light/Fertility,Can Connect to Mobile Phone via Bluetooth,Hygrometer Sensor for Indoor Plants (1pc)
Regular price ¥8,100 JPYRegular price