{"product_id":"industrial-dsm-4689dus-digital-monitor-with-alarm","title":"Industrial DSM-4689DUS Digital Monitor With Alarm","description":"\u003cdiv\u003e\u003cp\u003eThe Altronic DSM-4689DUS Universal Setpoint Monitor is an eight-point analog-input, microprocessor-based instrument designed to monitor critical process variables represented by voltage signals—typical uses include pressures, temperatures, and speed—with tachometer, overspeed, and run-time hourmeter functions and a power requirement of 12–30 VDC (typical 10 W). Each channel provides high and low setpoints and an individual setpoint pair, a solid-state Form C output for machine protection, and inputs that accept 0–5 V, 1–5 V, or 0.5–4.5 V signals; Modbus RTU (RS-485) communications are standard, and the front panel features a sealed membrane keypad with a rugged gasketed anodized aluminum enclosure suitable for demanding environments such as oilfields. The DSM-4689DUS also displays fault information in order of occurrence on the display and via the serial port, supports connection to a negative-ground ignition system for tachometer\/overspeed\/hourmeter, and is certified Class I, Division 1 \u0026amp; 2, Group D hazardous locations; it replaces the DSM-4688DUS as the current model. \u003c\/p\u003e\u003c\/div\u003e","brand":"ALTRONIC","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51659878170926,"sku":null,"price":174.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_444c7225-cea8-4de9-aa42-53f1b3b1706a.jpg?v=1769530342","url":"https:\/\/plgautomation.com\/products\/industrial-dsm-4689dus-digital-monitor-with-alarm","provider":"PLG Automation ","version":"1.0","type":"link"}