Milwaukee Instruments Waterproof pH Tester pH55 PRO pH56 PRO Size:pH 0.00–14.00 (temp. 0.0–60.0℃), 0.01 resolution (pH56 PRO) Specification — CDRQ2BW20 360C Chain Clamp Specification — CDRQ2BW20 360C Main range of product EasyPact Product or component type Circuit breaker Device short name Easypact EZC100H Circuit breaker name Easypact EZC100H Device application Distribution Poles description 3P Protected poles description 3t Network type ACDC Network frequency 50 60 Hz [In] rated current 15 A at 40 °C [Ui] rated insulation voltage 690 V AC 50 60 Hz conforming to IEC 60947 2 [Uimp] rated impulse withstand voltage 6 kV conforming to IEC 60947 2 [Ue] rated operational voltage 550 V AC 50 60 Hz conforming to IEC 60947 2250 V DC conforming to IEC 60947 2 Breaking capacity code H Breaking capacity 10 kA Icu at 125 V DC 1P conforming to IEC 60947 210 kA Icu at 250 V DC 2P conforming to IEC 60947 210 kA Icu at 550 V AC 50 60 Hz conforming to IEC 60947 2100 kA Icu at 110 01 resolution (pH56 PRO) which is the only way to get a repeatable pH number rather than a colour impression