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HI 1330B
Glass-body, semimicro, single junction, refillable, combination pH
electrode. Use: laboratory, vials.
HI 1331B
Glass-body, semimicro, single junction, refillable, combination pH
electrode. Use: flasks.
HI 1230B
Plastic-body (Ultem
®
), double junction, gel-filled, combination pH
electrode. Use: general, field.
HI 2031B
Glass-body, semimicro, conic, refillable, combination pH electrode. Use:
semisolid products.
HI 1332B
Plastic-body (Ultem
®
), double junction, refillable, combination pH
electrode. Use: general purpose.