Fiem AIR CONDITIONED AA -68/24 Exotic Spare...
Fiem AIR CONDITIONED AA -68/24 Exotic Spare Parts and Options for MG50
A customer wrote to me: "The wet-bulb hygrometer always read 100% even when the incubator was dry. I replaced the sock, which was encrusted with limescale and dirt, and now it works perfectly again. My mistake: I was using tap water instead of distilled water."
⚠️ CAUTION - CRITICAL MAINTENANCE: The muslin sock is the most important component for the proper functioning of the wet bulb hygrometer. It MUST be replaced frequently and ALWAYS kept moist with distilled water. A dirty, dry, or mineral-encrusted sock will cause completely incorrect readings.
When to replace: With each new batch of eggs, when the sock appears dirty/yellowish, if there are white scale deposits, when the readings are unstable or stuck at 100%, or if the sock no longer absorbs water well. ALWAYS use distilled or demineralized water to avoid mineral deposits.
What's included: 1 meter of cotton muslin wick, enough for several refills. Cut to the length needed to completely wrap the thermometer bulb.
Basic rules: The sock must always be kept moist, use only distilled water, tighten it well around the bulb, make sure it sits properly in the water tank.
💰 Price: €2.00/meter (VAT excluded, shipping excluded) – FIEM COMO WAREHOUSE – Padovan Avicoltura: original spare parts for precision instruments.
Compatibility: FIEM HNB wet bulb hygrometer and Fiem thermohygrometer
📦 Logistics: Dispatch within 1 business day, delivery within 2-4 days. Warranty: Consumable product.
💡 More info? Read the description below.
Cash on delivery, PayPal, credit card, in 3 installments, Satispay, bank transfer, Postepay top-up.
Italy offers free shipping on orders over €190. For smaller orders, shipping is €14.70 (place one order per Fiem-Borotto-River brand). European Union shipping is always €30.
Pre-purchase assistance to help you choose the product best suited to your needs, post-purchase support with usage advice and help finding spare parts.
Con ordini superiori a 190 euro, la spedizione è gratuita! Per importi inferiori, la tariffa fissa di una singola spedizione è solo 14,70 euro.
Item code: 28 (HNB-K)
Italian name: Wet bulb humidity reading wick
English name: Wet Bulb Hygrometer Wick / Muslin Cloth
Material: Cotton muslin
Length: 1 meter (can be cut to size)
Compatibility: FIEM HNB wet bulb hygrometer + Fiem thermohygrometer
⚠️ CRITICAL COMPONENT - MANDATORY FREQUENT MAINTENANCE:
The muslin sock is the heart of the wet-bulb hygrometer's measurement system. A dirty, dry, or crusted sock makes humidity readings COMPLETELY UNRELIABLE , compromising the entire incubation.
Replace at each new incubation cycle!
The wick (or muslin stocking) is the cotton fabric that wraps the thermometer bulb in a wet-bulb hygrometer. Its function is:
Principle: Water evaporates from the damp sock → the bulb cools → the temperature difference indicates humidity. If the sock malfunctions, the entire system is compromised.
✅ ALWAYS replace:
ALWAYS USE DISTILLED OR DEMINERALIZED WATER!
Tap water contains minerals (calcium, magnesium) that:
With distilled water the sock lasts 3-4 times longer!
Daily checks:
Weekly checks:
💡 Advice from 45 years of experience: It's better to change the sock one too many than one too few. The cost is minimal (€2/meter = several replacements), but the risk of losing an entire brood due to incorrect readings is very high.
| Characteristic | Value |
|---|---|
| Material | 100% cotton muslin |
| Length | 1 meter (cuttable) |
| Color | Natural white |
| Product type | Consumable - periodic replacement |
| Replacement frequency | Each incubation cycle |
| Recommended water | Distilled or demineralized |
Price: €2.00 per meter (VAT excluded, shipping excluded)
Yield: 1 meter = approximately 10-15 refills (depends on the length needed)
FIEM COMO WAREHOUSE – Padovan Avicoltura: original spare parts for precision instruments.
Q: How long does a sock last?
A: With proper use and distilled water, 2 months
Q: Can I wash the sock instead of replacing it?
A: Not recommended. Washing doesn't remove mineral deposits within the fibers, and the soap contaminates the cotton. It only costs €2/meter, so it's best to replace.
Q: Do I have to use distilled water?
A: Highly recommended. Tap water deposits limescale, which quickly ruins the sock and causes inaccurate readings.
Q: The hygrometer always reads 100%. Why?
A: The sock is dry, dirty, or no longer absorbent. Replace it and use distilled water.
Q: How many refills do I get from 1 meter?
A: About 10-15 pieces, depending on the length you need for your hygrometer (typically 5-8 cm per spare).
🛒 Order now or ask for information
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📧 Email: info@padovanavicoltura.it
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