{"product_id":"spare-head-ammonia-leak-detector-0554-3181","title":"Spare Head for Ammonia (NH3) Leak Detector","description":"\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eWhen your Testo 316-4 ammonia leak detector needs a new sensor, this genuine 0554 3181 spare head is the part you need. It's designed to bring back the critical sensitivity required for pinpointing even the smallest NH3 leaks, keeping your plant safe and compliant.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eIn Australian industrial refrigeration, accurate ammonia leak detection isn't just about efficiency; it's a critical safety measure. Swapping out a worn sensor head is a quick job that saves a lot of headaches on site, especially when you're under pressure to get a system back online without any lingering gas.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eBest For\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eHVAC\/R technicians servicing industrial ammonia (NH3) refrigeration systems.\u003c\/li\u003e\n\u003cli\u003eMaintenance teams in food processing, cold storage, or chemical plants.\u003c\/li\u003e\n\u003cli\u003eAnyone requiring precise leak detection for ammonia.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eCompatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003eThis 0554 3181 sensor head is specifically designed as a direct replacement for Testo 316-4 leakage detectors when set up for ammonia (NH3). It ensures your detector maintains its high sensitivity for ammonia leaks. If you're running a different model, check fittings and specs before ordering.\u003c\/p\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eFeatures\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmmonia (NH3) Specific:\u003c\/strong\u003e Precisely calibrated for detecting ammonia gas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Sensitivity:\u003c\/strong\u003e Detects leaks as small as \u0026lt;3g\/a, crucial for safety and compliance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Replacement:\u003c\/strong\u003e Designed for quick and straightforward sensor head changes in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Quality:\u003c\/strong\u003e Genuine Testo part ensures reliable performance and accurate readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 16px; margin-bottom: 20px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"color: #007acc; border: 1px solid #e0e0e0; padding: 10px; text-align: left; background-color: #f5f5f5;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e50 x 17 x 17 mm (2.0 x 0.7 x 0.7 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eSensitivity\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e\u0026lt;3 g\/a (ammonia)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eProduct Colour\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eBlack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #e0e0e0; padding: 10px;\"\u003e10 g (0.35 oz.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003e1 x Spare head for ammonia (NH3) leak detector (0554 3181)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eUsing It on the Job\u003c\/h2\u003e\n\u003col style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eEnsure your Testo 316-4 leak detector is powered off before attempting sensor replacement.\u003c\/li\u003e\n\u003cli\u003eCarefully remove the old sensor head by unscrewing or unlatching it according to the Testo manual.\u003c\/li\u003e\n\u003cli\u003eInstall the new 0554 3181 ammonia sensor head, ensuring it clicks or screws into place firmly.\u003c\/li\u003e\n\u003cli\u003ePower on the detector and allow it to warm up as per manufacturer instructions.\u003c\/li\u003e\n\u003cli\u003ePerform a functional check with a known ammonia source or calibration gas to verify detection and sensitivity.\u003c\/li\u003e\n\u003cli\u003eRegularly clean the sensor intake area to prevent dust and debris from affecting performance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003eLimitations \u0026amp; Safety Notes\u003c\/h2\u003e\n\u003cul style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\n\u003cli\u003eThis sensor head is exclusively for detecting ammonia (NH3) and is not suitable for other refrigerants.\u003c\/li\u003e\n\u003cli\u003eAlways follow safety procedures when working with ammonia systems, including proper ventilation and PPE.\u003c\/li\u003e\n\u003cli\u003eRefrigerant work, including leak detection on active systems, generally requires a current ARCtick licence in Australia.\u003c\/li\u003e\n\u003cli\u003eEnsure the main Testo 316-4 unit's firmware is up-to-date for optimal sensor performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote style=\"border-left: 4px solid #007acc; background-color: #f9f9f9; font-style: italic; padding: 15px; margin: 20px 0;\"\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003e\"After changing any sensor head, give your Testo 316-4 a good few minutes to warm up and stabilise. Always do a quick functional test with a known ammonia source before you start trusting it on a critical leak check.\"\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003ch2 style=\"color: #007acc; border-bottom: 2px solid #f0f0f0; padding-bottom: 8px; margin-top: 35px;\"\u003ePair With\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; line-height: 1.6; margin-bottom: 20px;\"\u003ePair with the Testo 316-4 Leak Detector itself if you're replacing a faulty unit, or grab some calibration gas for regular functional checks to ensure your readings are always spot on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Automated FAQ Schema --\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What Testo model does this spare head fit?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"This 0554 3181 spare head is designed as a direct replacement for the Testo 316-4 leak detector, specifically when it is used for ammonia (NH3) detection.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this sensor head compatible with other refrigerants?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"No, this particular sensor head is calibrated exclusively for the detection of ammonia (NH3). It will not accurately detect other common refrigerants like R32 or R410A.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How easy is it to replace this sensor head on the job?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The Testo 316-4 is designed for easy sensor head replacement. You simply power down the unit, unlatch or unscrew the old head, and fit the new one securely before powering back on.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Testo","offers":[{"title":"Default Title","offer_id":43754107928635,"sku":"0554 3181","price":592.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0316\/7787\/4235\/files\/0554-3181-probe-indoor-air-quality-004664.jpg?v=1783396046","url":"https:\/\/www.hvacshop.com.au\/products\/spare-head-ammonia-leak-detector-0554-3181","provider":"HVAC Supply Shop","version":"1.0","type":"link"}