Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display Stun Guns 1 x 30mw VFL Red

1 x 30mw VFL Red Light Pen

Press twice and hold on the second press to cycle through colors

Part Number: Double Lock-02

providing pure color temperature

Perfect For Adding A Touch Of Elegance And Charm To Any Room

Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display Stun Guns 1 x 30mw VFL RedBrand: Apera Instruments Features: NOTE: A few drops of water are added to the electrode cap before the product leaves the factory. This is to maintain the sensitivity of the electrode. Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap Accuracy: 0. 01 pH; range: 2. 00 to 16. 00 pH, 32 to 122F (0 to 50C); Auto. Power Off: 8 minutes without operation Easy 1 3 points auto. calibration, recognizes 5