WTW Ph 3110 Meter Only Unit EA. Single instrument only. Single instrument including short instruction manual CD and batteries Specifications for WTW Ph 3110 Meter Only 2AA110: Manufacturer: WTW Operation Temperature Range: 23 - 221 Fahrenheit Available quantity options: Each Package Contents: WTW Ph 3110 Meter Only 2AA110 / 97043-094 The WTW Ph 3110 Meter Only 2AA110 is a quality addition to the WTW lineup. For more great deals on pH Meters by WTW please browse our WTW pH Meters page. WTW Ph 3110 Meter Only 2AA110 Unit EA