Bluelab EC pen
• EC and temperature meter
• Waterproof
• Range: 0.0 to 10.0 EC
• Resolution: 0.1 EC
• Accurate: ± 0.1 EC
• 1 checkpoints - EC 2.77
• Temperature measurement 1 ° C accuracy
• Automatic Temperature Compensation
• Warranty 1 year
• Includes 1 x AAA battery