HANNA BL931700-0 Mini pH Controller, Recorder Output: 4-20mA, Resolution: pH 0.01, Electrical: 12V $299.99 Quantity discounts available QuantityPrice SKU: HAN-BL931700-0 BRAND: Hanna Instruments Inc. *Item is not in stock. This item normally carries a 5-10 day lead time. Get Notified When Available We'll email you when HANNA BL931700-0 Mini pH Controller, Recorder Output: 4-20mA, Resolution: pH 0.01, Electrical: 12V is back in stock or available for preorder. Please get in touch with Customer Service or your Jade Scientific, Inc. sales representative if you want to find an in-stock alternative. Name Last name Email Address (required)Subscribe to marketing emails. Get notified Quantity -+ Add to Cart