Digital Moisture Meter Kits
DIY: Moisture Meter
Blumat Digital Moisture Meter Kits
Instant, accurate soil moisture readings purpose-built for potting mix and living soil. No calibration, no guesswork — just reliable data so you know exactly when to water and when to hold off. Available Options + Meter Only — Base unit for reliable soil moisture readings. Meter + Protective Cap — Adds UV and moisture protection for outdoor use. Meter + Protective Cap + Battery — Includes a spare CR2032 3-volt battery. Complete Kit (Meter + Cap + Battery + Coring Tool) — Full field kit with the Blumat Coring Tool (1" wide, 11"+ long) for precise sensor installation with minimal soil disturbance. How It Works + Insert the probe into your potting mix and get an instant reading in millibar (mbar). The lower the number, the wetter the soil. Use it to dial in your Blumat sensors, check moisture before watering, or track drybacks between feeds. Purpose-built for container growing — not field soil. Gives consistent, repeatable readings that cheap probes and finger tests can't match. Important Notes + The top of the meter is not waterproof — do not submerge or expose to standing water. The protective cap should not be seated directly into soil — trapped humidity can damage the sensor. Reset instructions available here.
$86.00 - $92.00
Irrometer Kits
Description Get constant, at-a-glance readings of soil moisture with the original American-made tensiometer. Irrometers have been trusted by growers for decades to show how hard plant roots are working to access water. Analog and always ready, they provide clear insight into your soil without electronics or calibration. Use one at your target depth, or stack multiple to track moisture movement through the full root zone. Available Options Irrometers come in two versions: For Potting Soil (LT, 0–40 cbar) — available in 6″, 12″, and 18″ lengths. For Native Soil (SR, 0–100 cbar) — also available in 6″, 12″, and 18″ lengths. Note: Irrometer readings are in centibar (cbar). To compare with Digital Moisture Meter readings in millibar (mbar), just move the decimal (100 mbar = 10 cbar). Service Kit Options Choose the setup that fits your needs. Service kits improve setup and speed up readings by letting you pull a vacuum inside the Irrometer. This removes trapped air, helps check for leaks, and makes the instrument respond more quickly. Both kits also include Irrometer fluid/dye (for visibility) and instructions. Basic Service Kit — syringe, fluid/dye, instructions (simple way to pull a vacuum) Pump Service Kit — hand pump, fluid/dye, instructions (faster way to pull a vacuum and check for leaks) None — Irrometer only
$108.00 - $562.68

