





💧 Stay ahead in water quality—because your ecosystem deserves the best!
The Hydrofarm HMDCOM100 Combometer is a professional waterproof tester that measures electrical conductivity (EC), total dissolved solids (TDS), and temperature with high accuracy. Featuring a broad measurement range (0-9990 μS EC, 0-8560 ppm TDS, 0-80°C), triple non-linear conversion coefficients, and an IP67 waterproof housing, it’s engineered for demanding applications like hydroponics, lab testing, and environmental monitoring. Its smart features include auto-off, data retention, and a replaceable platinum electrode, all packed into a compact, battery-powered device designed for precision and durability.
| Manufacturer | HM ELECTRONICS |
| Part number | COM-100 |
| Item Weight | 120 g |
| Product Dimensions | 22.61 x 7.37 x 5.33 cm; 120 g |
| Batteries | 2 AAA batteries required. |
| Is Discontinued By Manufacturer | No |
| Power source type | Battery Powered |
| Voltage | 3 Volts |
| Number Of Pieces | 1 |
| Special Features | Non-Contact |
| Batteries Included | No |
| Batteries Required? | Yes |
| Item Dimensions LxWxH | 22.6 x 7.4 x 5.3 cm |
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